阅读说明：本技术 一种可快速回收钢管的围护桩及其施工方法 (Enclosure pile capable of rapidly recovering steel pipe and construction method thereof ) 是由 梁伟桥 龚超 骆永生 于 2020-11-26 设计创作，主要内容包括：本发明公开了一种可快速回收钢管的围护桩及其施工方法,该围护桩包括混凝土及多节中空内置钢管组合而成。围护桩孔与内置钢管外壁间形成有效空间,并在此空间浇筑混凝土。该围护桩的内置钢管采用分节多段组装,每一节采用特定设计实现管间连接,将整条桩体的钢管分解成若干段,能够在多节内置钢管回收过程中实现多节内置钢管的分段回收,显著提高内置钢管的回收速度、降低内置钢管的回收难度,从而节约资源,提高材料的利用率。该围护桩还具有较好刚度,能够对深基坑周围土体发挥良好的支护作用。(The invention discloses a fender post capable of rapidly recovering steel pipes and a construction method thereof. An effective space is formed between the fender pile hole and the outer wall of the built-in steel pipe, and concrete is poured in the space. The built-in steel pipe of the fender pile is assembled in sections and sections, each section is connected among the pipes by adopting a specific design, the steel pipe of the whole pile body is decomposed into a plurality of sections, the segmented recovery of the built-in steel pipes in sections can be realized in the recovery process of the built-in steel pipes in sections, the recovery speed of the built-in steel pipe is obviously improved, the recovery difficulty of the built-in steel pipe is reduced, and therefore resources are saved, and the utilization rate of materials is improved. The fender post also has better rigidity and can play a good role in supporting soil around the deep foundation pit.)

1. The utility model provides a can retrieve fender pile of steel pipe fast, is formed with fender pile hole on the excavation place, a serial communication port, the fender pile that can retrieve the steel pipe fast includes:

the steel pipe support is characterized by comprising a built-in steel pipe (1), wherein the built-in steel pipe (1) is in multiple sections, the built-in steel pipe (1) is hollow, the multiple sections of built-in steel pipe (1) are sequentially connected and arranged in a fender pile hole, and an effective space is formed between the outer wall of the built-in steel pipe (1) and the fender pile hole;

and the concrete (2) is poured into the effective space and forms a whole with the multiple sections of the built-in steel pipes (1) to bear force together.

2. The fender pile of claim 1, wherein the fender pile of rapidly recoverable steel pipe further comprises:

the steel tube connector comprises built-in steel tube (1) connecting blocks, wherein one built-in steel tube (1) connecting block is welded on the inner wall of each built-in steel tube (1), one end of each built-in steel tube (1) connecting block is welded on the inner wall of one end of each built-in steel tube (1), and the other end of each built-in steel tube (1) connecting block is inserted into a through hole of each built-in steel tube (1) so that the two adjacent built-in steel tubes (1) can be detachably connected;

the steel wire rope (4) is detachably connected to the connecting block of the built-in steel pipe (1) in each built-in steel pipe (1), and the steel wire rope (4) can be detachably connected with the adjacent built-in steel pipe (1).

3. The fender pile of claim 2, wherein when a plurality of sections of the built-in steel pipe (1) are arranged in the fender pile hole, the length of the steel wire rope (4) on each section of the built-in steel pipe (1) is configured to meet the requirement that the adjacent built-in steel pipe (1) is kept in the fender pile hole when the built-in steel pipe (1) is lifted away from the surface of the excavation site.

4. The fender pile capable of rapidly recovering steel pipes according to claim 2, wherein the built-in steel pipe (1) connecting block comprises a plurality of wedge blocks (3), one side of each wedge block (3) close to the inner wall of the built-in steel pipe (1) is provided with a horizontal section (31) and an inclined section (32), one end of each horizontal section (31) is welded on the inner wall of one built-in steel pipe (1), and the other end of each horizontal section extends into the other built-in steel pipe (1) and is connected with the inclined section (32).

5. The fender pile capable of rapidly recycling the steel pipe according to claim 2, further comprising a plurality of inner supporting rods (5), wherein one end of each of the plurality of inner supporting rods (5) is welded to each other, the other end of each of the plurality of inner supporting rods (5) is welded to the inner wall of the built-in steel pipe (1), one end of each of the steel wire ropes (4) is detachably connected to the inner supporting rod (5), and the other end of each of the steel wire ropes is detachably connected to the inner wall of the adjacent built-in steel pipe (1).

6. A fender post according to claim 5, characterized in that a plurality of the inner support rods (5) are welded on the built-in steel pipe (1) connecting block, and at least part of the projection of the inner support rods (5) on the inner wall of the built-in steel pipe (1) is coincided with the joint of two built-in steel pipes (1).

7. The fender pile capable of rapidly recovering the steel pipe according to claim 1, further comprising a positioning component (7), wherein the positioning component (7) is used for positioning the built-in steel pipe (1) so as to enable the built-in steel pipe (1) to be hung on a preset position of the fender pile.

8. A method for constructing a fender post capable of rapidly recovering a steel pipe, using the fender post according to any one of claims 1 to 7, wherein the method for constructing a fender post capable of rapidly recovering a steel pipe comprises:

inserting an outer sleeve in the excavation site and removing soil in the outer sleeve to form the fender pile hole in the excavation site;

sequentially connecting a plurality of sections of the built-in steel pipes (1) and integrally hoisting the plurality of sections of the built-in steel pipes (1) into the outer sleeve;

-casting the concrete (2) in the effective space between the steel displacement pipe (1) and the outer casing;

and after the concrete (2) is cured to reach the standard and the foundation pit engineering and the underground main structure are constructed, recovering the multiple sections of the built-in steel pipes (1) and separating the built-in steel pipes from the concrete (2).

9. The construction method of the fender post capable of rapidly recovering the steel pipe according to claim 8, characterized in that before the multiple sections of the built-in steel pipes (1) are hoisted, the multiple sections of the built-in steel pipes (1) are connected with the steel wire ropes (4) through the built-in steel pipe (1), then the built-in steel pipes are integrally hoisted and placed into the fender post hole, the concrete (2) is poured between the outer sleeve and the multiple sections of the built-in steel pipes (1), the multiple sections of the built-in steel pipes (1) are recovered after the concrete (2) is maintained to reach the standard and the foundation pit engineering and the underground main structure are constructed, the built-in steel pipes (1) at the top are firstly pulled out during recovery, the built-in steel pipes (1) at the top are dismantled when the built-in steel pipes (1) at the top are hoisted out to the surface of the excavation site, and the steel wire ropes (4) connected with the built-in steel pipes (, the crane pulls the steel wire rope (4) and migrates the next section of the built-in steel pipe (1), after the section of the built-in steel pipe (1) is pulled out of the ground, the steel wire rope (4) at the lower end of the section of the built-in steel pipe (1) is unbound and lifted off and placed well, then the crane and the steel wire rope (4) unbound just now are bound for one section and the next section of the built-in steel pipe (1) is pulled out, and the process is repeated until all the built-in steel pipes (1) located in the fender pile hole are recovered.

10. The construction method of the fender post capable of rapidly recycling the steel pipe according to claim 9, wherein before the concrete (2) is poured into the effective space between the built-in steel pipe (1) and the outer sleeve, a first positioning member (71) is installed on the bottom wall of the fender post hole, a second positioning member (72) is installed on the top of the fender post hole, a plurality of sections of the built-in steel pipe (1) are hoisted, and the plurality of sections of the built-in steel pipe (1) are matched with the first positioning member (71) and the second positioning member (72), so that the plurality of sections of the built-in steel pipe (1) are hoisted on a preset position.

Technical Field

The invention relates to the technical field of foundation pit bracing, in particular to a fender pile capable of quickly recycling steel pipes and a construction method thereof.

Background

Before the excavation of the foundation pit, a building enclosure of the foundation pit needs to be constructed in advance so as to prevent or relieve the deformation of the foundation pit and the infiltration of underground water after the excavation of the soil body. If the foundation pit is deformed too much or the water seepage is too much, the accident of the foundation pit can be caused. Adopt traditional mud dado pore-forming, the technology is more complicated, and the pore-forming quality is difficult to guarantee, and after the steel reinforcement cage poured concrete was accomplished to fender pile and the construction of underground main structure after the pore-forming, the steel reinforcement cage can't be retrieved, causes the wasting of resources. In addition, in the conventional SMW construction method pile, cement soil is inserted into the section steel, so that the strength and rigidity cannot be ensured, and the section steel is difficult to recycle in the later period. The existing fender post construction technology cannot meet the requirements on strength and rigidity and can not meet the requirement on high-efficiency recycling of concrete (cement soil) built-in (inserted) reinforcement cages (section steel). The problems of resource waste, overhigh construction cost and the like are caused. In particular, the problem is particularly prominent when the foundation pit is deep.

Disclosure of Invention

One object of the present invention is to provide a fender post capable of rapidly recovering steel pipes, which can achieve rapid recovery and recycling of multiple sections of built-in steel pipes.

The invention also aims to provide a construction method of the fender post capable of rapidly recovering the steel pipe, which can improve the construction efficiency, ensure the construction quality and reduce the cost.

In order to realize the technical effects, the technical scheme of the fender post capable of rapidly recovering the steel pipe and the construction method thereof is as follows:

the utility model provides a can retrieve fender pile of steel pipe fast, is formed with fender pile hole on the excavation place, the fender pile that can retrieve the steel pipe fast includes: the built-in steel pipes are in multiple sections, the built-in steel pipes are hollow, the multiple sections of built-in steel pipes are sequentially connected and arranged in the enclosure pile hole, and an effective space is formed between the outer walls of the multiple sections of built-in steel pipes and the enclosure pile hole; and the concrete is poured into the effective space and forms a whole with the multiple sections of the built-in steel pipes, and the concrete and the multiple sections of the built-in steel pipes bear force together.

Further, but fender pile of quick recovery steel pipe still includes: the steel pipe connector comprises built-in steel pipe connecting blocks, wherein one built-in steel pipe connecting block is welded on the inner wall of each built-in steel pipe, one end of each built-in steel pipe connecting block is welded on the inner wall of one end of one built-in steel pipe, and the other end of each built-in steel pipe connecting block is inserted into a through hole of the adjacent built-in steel pipe, so that the two adjacent built-in steel pipes are detachably connected; the steel wire rope is detachably connected to the built-in steel pipe connecting block in each built-in steel pipe, and the steel wire rope can be detachably connected with the adjacent built-in steel pipes.

Further, when a plurality of sections of the built-in steel pipes are arranged in the enclosure pile hole, the length of the steel wire rope on each section of the built-in steel pipe is configured to meet the requirement that the adjacent built-in steel pipe is kept in the enclosure pile hole when the built-in steel pipe is lifted away from the ground surface of the excavation site.

Furthermore, the built-in steel pipe connecting block comprises a plurality of wedging blocks, one side, close to the inner wall of the built-in steel pipe, of each wedging block is provided with a horizontal section and an inclined section, one end of each horizontal section is welded to the inner wall of one built-in steel pipe, and the other end of each horizontal section extends into the other built-in steel pipe and is connected with the inclined section.

Furthermore, the fender post further comprises a plurality of inner supporting rods, one ends of the plurality of inner supporting rods are mutually welded and connected, the other ends of the plurality of inner supporting rods are welded on the inner wall of the built-in steel pipe, one end of the steel wire rope is detachably connected with the inner supporting rod, and the other end of the steel wire rope is detachably connected with the inner wall of the adjacent built-in steel pipe.

Furthermore, a plurality of inner supporting rods are welded on the built-in steel pipe connecting blocks, and at least part of projections of the inner supporting rods on the inner walls of the built-in steel pipes is overlapped with the connecting part of the two built-in steel pipes.

Furthermore, the fender pile further comprises a positioning assembly, and the positioning assembly is used for positioning the built-in steel pipe so that the built-in steel pipe can be hung on the preset position of the fender pile.

Further, the construction method of the fender post capable of rapidly recovering the steel pipe comprises the following steps: inserting an outer sleeve in the excavation site and removing soil in the outer sleeve to form the fender pile hole in the excavation site; sequentially connecting a plurality of sections of the built-in steel pipes and integrally hoisting the plurality of sections of the built-in steel pipes into the outer sleeve; casting the concrete in the effective space between the inner steel pipe and the outer sleeve; and after the concrete curing reaches the standard and the foundation pit engineering and the underground main structure are constructed, recovering the multiple sections of the built-in steel pipes and separating the built-in steel pipes from the concrete.

Furthermore, before hoisting the multiple sections of the built-in steel pipes, the multiple sections of the built-in steel pipes are connected through built-in steel pipe connecting blocks and steel wire ropes, then the built-in steel pipes are hoisted into the fender post hole integrally, the concrete is poured between the outer sleeve and the multiple sections of the built-in steel pipes, the multiple sections of the built-in steel pipes are recovered after the concrete is cured to reach the standard and the foundation pit engineering and underground main structure construction is finished, the built-in steel pipes at the top are firstly pulled out during recovery, the built-in steel pipes at the top are removed when the built-in steel pipes at the top are removed to the surface of the excavation site, the steel wire ropes connected with the built-in steel pipes are connected with a hoist, the hoist pulls out the steel wire ropes and migrates the next section of the built-in steel pipes, and the steel wire ropes at the lower end of the section of the built-in, and then binding the crane with the just unbound steel wire rope section, drawing the next section of built-in steel pipe, and the like until all the built-in steel pipes in the enclosure pile hole are recovered.

Furthermore, before the concrete is poured in the effective space between the built-in steel pipe and the outer sleeve, a first positioning piece is installed on the bottom wall of the enclosure pile hole, a second positioning piece is installed at the top of the enclosure pile hole, the multiple sections of the built-in steel pipe are hoisted, and the multiple sections of the built-in steel pipe are matched with the first positioning piece and the second positioning piece, so that the multiple sections of the built-in steel pipe are hoisted on a preset position.

The invention has the beneficial effects that: according to the fender post capable of rapidly recycling the steel pipes, the built-in steel pipes are in multiple sections, so that each built-in steel pipe can be sequentially and independently taken out when the built-in steel pipes are taken out from the fender post hole, the friction between the built-in steel pipes and concrete when the built-in steel pipes are taken out from the concrete can be effectively reduced, the segmented rapid recycling of the multiple sections of built-in steel pipes and the reliable recycling of the built-in steel pipes are ensured, the recycling equipment calling cost of the built-in steel pipes and the recycling difficulty of the built-in steel pipes are greatly reduced, the overall construction efficiency is improved, and the construction cost is reduced.

The invention has the following beneficial effects: according to the construction method of the enclosure pile capable of rapidly recycling the steel pipes, the built-in steel pipes are adopted, so that specific connection of multiple sections of built-in steel pipes can be realized, a good reinforcing effect can be achieved in the construction process of the enclosure pile, the multiple sections of built-in steel pipes can be rapidly and reliably recycled in a segmented manner, the recycling difficulty of the built-in steel pipes is reduced, the calling cost of recycling equipment of the built-in steel pipes is reduced, the lifting and dismounting efficiency of the built-in steel pipes is improved, and the multiple sections of built-in steel pipes of the enclosure pile can be repeatedly utilized; meanwhile, the fender pile is cast with concrete with higher strength between the built-in steel pipe and the outer sleeve in the construction process, so that the overall strength of the fender pile can be effectively improved. Therefore, the strength and the construction efficiency of the fender pile are improved, the construction quality is guaranteed, and the construction cost of the fender pile is reduced.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

FIG. 1 is a schematic structural diagram of an inner steel tube and an outer sleeve according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a built-in steel pipe according to an embodiment of the present invention;

FIG. 3 is a schematic view of the internal structure of the joint of two sections of steel pipes according to the present invention;

FIG. 4 is a schematic top view of the steel tube assembly according to the embodiment of the present invention;

FIG. 5 is a cross-sectional view of the inner steel tube and the first positioning member in accordance with the exemplary embodiment of the present invention;

fig. 6 is a schematic structural diagram of a second positioning element according to an embodiment of the present invention.

Reference numerals

1. Arranging a steel pipe inside; 2. concrete; 3. a wedging block; 31. a horizontal segment; 32. an inclined section;

4. a wire rope; 5. an inner support bar; 6. hanging a lug;

7. a positioning assembly; 71. a first positioning member; 72. a second positioning member; 721. and (7) installing holes.

Detailed Description

In order to make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the accompanying drawings.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

It will be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in an orientation or positional relationship indicated in the drawings for convenience and simplicity of description only and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The specific structure of the built-in steel pipe of the embodiment of the present invention is described below with reference to fig. 1 to 6.

As shown in fig. 1 to 6, fig. 1 discloses a fender pile capable of rapidly recovering a steel pipe, a fender pile hole is formed on an excavation site, and the fender pile capable of rapidly recovering a steel pipe comprises a built-in steel pipe 1 and concrete 2. The built-in steel pipes 1 are in multiple sections, the built-in steel pipes 1 are hollow, the multiple sections of built-in steel pipes 1 are sequentially connected and arranged in the enclosure pile hole, and an effective space is formed between the outer wall of the multiple sections of built-in steel pipes 1 and the enclosure pile hole. The concrete 2 is poured in the effective space and forms a whole with the multiple sections of the built-in steel pipes 1 to bear force together.

It can be understood that built-in steel pipe 1 can stabilize and set up in the fender pile hole, can be convenient for pour concrete 2 in the effective space between built-in steel pipe 1 and fender pile hole, built-in steel pipe 1 can make whole fender pile have higher resistance to shear and higher rigidity with concrete 2 mutually supports, make built-in steel pipe 1 can cooperate concrete 2 to bear the soil and water pressure in the deep basal pit jointly to play better enclosure effect to the deep basal pit, prevent that the soil body in the deep basal pit outside from getting into in the deep basal pit. Meanwhile, after the concrete 2 is cured to reach the standard and the construction of the foundation pit engineering and the underground main body structure is finished, because the built-in steel pipes 1 are in multiple sections, when the built-in steel pipes 1 are taken out from the fender post hole, each built-in steel pipe 1 can be sequentially and independently taken out, the friction force between the built-in steel pipes 1 and the concrete 2 when the built-in steel pipes 1 are taken out from the concrete 2 can be effectively reduced, the sectional recovery of the multiple sections of built-in steel pipes 1 and the reliable recovery of the built-in steel pipes 1 are ensured, the reliability of the recycled built-in steel pipes 1 can be facilitated, the utilization rate of materials can be. In addition, because the friction between each section of the built-in steel pipe 1 and the concrete 2 is small, the built-in steel pipe 1 can be recovered by using a small crane in the actual recovery process, so that the calling cost of the recovery equipment of the built-in steel pipe 1 and the recovery difficulty of the built-in steel pipe 1 are greatly reduced, and the overall construction efficiency of deep foundation pit engineering is improved.

According to the fender pile of retrieving steel pipe fast of this embodiment, because built-in steel pipe 1 is the multisection, can take out every built-in steel pipe 1 alone in proper order when taking out built-in steel pipe 1 from the fender pile hole, can effectively reduce built-in steel pipe 1 and the concrete 2 between the frictional force when taking out from concrete 2, ensure that the segmentation of multisection built-in steel pipe 1 is retrieved fast and built-in steel pipe 1's reliable recovery, greatly reduced built-in steel pipe 1's recovery plant call cost and built-in steel pipe 1's the recovery degree of difficulty, the whole efficiency of construction of deep basal pit engineering has been improved.

In some embodiments, as shown in fig. 2-4, the fender post capable of rapidly recovering steel pipes further comprises a built-in steel pipe 1 connecting block and a steel cable 4. The inner wall of each built-in steel pipe 1 is welded with a built-in steel pipe 1 connecting block, one end of each built-in steel pipe 1 connecting block is welded on the inner wall of one end of each built-in steel pipe 1, and the other end of each built-in steel pipe 1 connecting block is inserted into a through hole of each adjacent built-in steel pipe 1, so that the two adjacent built-in steel pipes 1 can be detachably connected. A steel wire rope 4 is detachably connected to a connecting block of the built-in steel pipe 1 in each built-in steel pipe 1, and the steel wire rope 4 can be detachably connected with the adjacent built-in steel pipe 1.

It can be understood that, after the maintenance of the concrete 2 reaches the standard and the construction of the foundation pit engineering and the underground main body structure is finished, because the built-in steel pipes 1 are detachably connected through the built-in steel pipe 1 connecting blocks of the built-in steel pipe 1 among the built-in steel pipes 1, a constructor can use the lifting device to grab the built-in steel pipes 1 and separate the built-in steel pipe 1 connecting blocks of the built-in steel pipe 1 from the built-in steel pipes 1 adjacent to the built-in steel pipes 1, in the lifting process, the contact area between a single built-in steel pipe 1 and the concrete 2 is small, the friction force between the built-in steel pipe 1 and the concrete 2 in the lifting process can be effectively reduced, the built-in steel pipe 1 can be conveniently separated from the concrete 2, the repeated utilization of the built-in steel pipes 1 is ensured, and the reinforcement cost and the. Two ends of the steel wire rope 4 are respectively connected with two adjacent sections of the built-in steel pipes 1, so that when the built-in steel pipes 1 are taken out, the built-in steel pipes 1 which are adjacent to each other can be lifted through the steel wire rope 4 after the built-in steel pipes 1 which are located at the top are lifted, all the built-in steel pipes 1 are dismantled by analogy in sequence, the built-in steel pipes 1 can be taken out and reused conveniently, and the taking-out efficiency of the built-in steel pipes 1 is improved.

The built-in steel pipe 1 connecting block can be used for better detachably connecting two adjacent sections of built-in steel pipes 1, so that the built-in steel pipes 1 cannot be separated from each other when being hoisted in an outer sleeve of an enclosure pile hole, the hoisting depth of the sections of built-in steel pipes 1 in the enclosure pile hole is ensured, and the integral reinforcing effect and the integral shearing resisting effect of the sections of built-in steel pipes 1 can also be ensured. The built-in steel pipe 1 connecting blocks of the built-in steel pipes 1 connect the built-in steel pipes 1 sequentially and stably, the whole built-in steel pipe 1 can be conveniently assembled and connected before the built-in steel pipes 1 are hoisted, and the built-in steel pipes 1 can be directly hoisted in the outer sleeve by directly using the hoisting device, so that the construction efficiency of the enclosure pile is improved.

In some embodiments, when multiple sections of the built-in steel pipes 1 are arranged in the fender post hole, the length of the steel wire rope 4 on each built-in steel pipe 1 is configured to meet the requirement that the adjacent built-in steel pipe 1 is kept in the fender post hole when the built-in steel pipe 1 is lifted away from the ground surface of the excavation site.

It can be understood that, through the above structure setting, can be better assurance after demolising first section built-in steel pipe 1, remaining all built-in steel pipe 1 all can be through small-size loop wheel machine ligature wire rope 4, rethread small-size loop wheel machine is demolishd built-in steel pipe 1 from concrete 2 through wire rope 4, has effectively improved built-in steel pipe 1's recovery speed, has realized the quick recovery of multisection built-in steel pipe 1.

In some embodiments, as shown in fig. 2 to 4, the connection block of the steel builtin pipe 1 includes a plurality of wedge blocks 3, one side of the wedge block 3 near the inner wall of the steel builtin pipe 1 has a horizontal section 31 and an inclined section 32, one end of the horizontal section 31 is welded on the inner wall of one steel builtin pipe 1, and the other end extends into another steel builtin pipe 1 and is connected with the inclined section 32.

It can be understood that, the horizontal section 31 is located in two sections of built-in steel pipes 1 simultaneously, and can ensure the firm connection between two adjacent sections of built-in steel pipes 1, and the setting of the inclined section 32 makes built-in steel pipes 1 break away from its adjacent built-in steel pipes 1 more conveniently when built-in steel pipes 1 are taken out from concrete 2, thereby improving the disassembly efficiency of built-in steel pipes 1.

In some specific embodiments, as shown in fig. 2 to 4, the plurality of wedge blocks 3 are uniformly distributed around the central axis of the through hole of the internal steel pipe 1, so that the connection effect between two adjacent sections of internal steel pipes 1 can be better ensured, the joint between two adjacent sections of internal steel pipes 1 can better bear the soil and water pressure outside the deep foundation pit, and the strength and the anti-shearing effect of the whole fender post are improved.

In some embodiments, as shown in fig. 2 to 4, the inclined section 32 extends in a direction away from the inner wall of the through hole of the inner steel pipe 1 toward a direction away from the horizontal section 31.

It can be understood that, through the above-mentioned structural arrangement, built-in steel pipe 1 drives wedging block 3 along keeping away from another built-in steel pipe 1 and removing under hoisting accessory's effect, when horizontal segment 31 breaks away from another built-in steel pipe 1, the distance between the through-hole of slope section 32 and built-in steel pipe 1 is along with built-in steel pipe 1 removes and is bigger and bigger in the direction of keeping away from another built-in steel pipe 1, thereby make wedging block 3 of being convenient for break away from another built-in steel pipe 1 fast, improved the lifting convenience and demolish efficiency of built-in steel pipe 1.

In some embodiments, as shown in fig. 2 to 4, the fender pile further includes a plurality of inner support rods 5, one end of each of the plurality of inner support rods 5 is welded to each other, the other end of each of the plurality of inner support rods 5 is welded to the inner wall of the steel tube 1, one end of the steel wire rope 4 is detachably connected to the inner support rod 5, and the other end of the steel wire rope is detachably connected to the inner wall of the adjacent steel tube 1.

It can be understood that the inner support rod 5 can facilitate the connection of the steel wire rope 4 with the two sections of the built-in steel pipes 1, and the two ends of the steel wire rope 4 are respectively detachably connected with the inner support rod 5 and the built-in steel pipes 1 to facilitate the turnover use of the whole built-in steel pipes 1.

Optionally, the diameter of the steel wire rope 4 is 6mm-8mm, so that the connection strength between the two sections of the built-in steel pipes 1 can be ensured.

In some specific embodiments, as shown in fig. 2 to 4, a hanging lug 6 is provided on an inner wall of the built-in steel pipe 1, and one end of the wire rope 4 is connected to the hanging lug 6, so that portability of connection between the wire rope 4 and the built-in steel pipe 1 and installation efficiency of the built-in steel pipe 1 can be improved.

In some embodiments, as shown in fig. 2-4, a plurality of inner support rods 5 are welded on the connecting blocks of the steel tube 1, and at least part of the projection of the inner support rods 5 on the inner wall of the steel tube 1 coincides with the connecting position of two sections of steel tube 1.

It can be understood that, through the above structure arrangement, the inner supporting rod 5 can support and reinforce the joint of the two sections of the built-in steel pipes 1, so that the joint of the two adjacent sections of the built-in steel pipes 1 can bear larger water and soil pressure, and the deformation degree of the joint of the two sections of the built-in steel pipes 1 is effectively reduced, thereby further improving the strength of the fender pile and improving the construction quality of deep foundation pit engineering.

In some embodiments, as shown in fig. 2-6, the fender post further comprises a positioning assembly 7, wherein the positioning assembly 7 is used for positioning the steel innerspring 1 so as to hoist the steel innerspring 1 to the fender post at a preset position.

It will be appreciated that the positioning assembly 7 ensures that the entire steel tube 1 is installed in the outer casing of the fender post, and that the space between the steel tube 1 and the outer casing is evenly distributed, thereby ensuring the overall strength of the fender post after the concrete 2 is poured.

In some embodiments, as shown in fig. 1 and 6, the positioning assembly 7 includes a first positioning member 71 and a second positioning member 72. One end of the first positioning member 71 can be inserted into the through hole of the built-in steel pipe 1. The second positioning member 72 is provided with a mounting hole 721, and the inner wall of the mounting hole 721 can abut against the outer wall of the built-in steel pipe 1.

It can be understood that, in the actual work progress, form the fender pile groove through inserting the outer tube in the excavation place, can install first setting element 71 on the diapire of mounting groove when hoist and mount built-in steel pipe 1, second setting element 72 can install on the construction face in excavation place, and make the distance between mounting hole 721 and the mounting groove notch satisfy the construction requirement, again pass built-in steel pipe 1 through the mounting hole 721 on second setting element 72, and make the through-hole cooperation of built-in steel pipe 1 in the outer tube at the tip of first setting element 71, thereby the location of the top and the bottom of built-in steel pipe 1 has been realized simultaneously, the installation accuracy of built-in steel pipe 1 has been improved, the construction quality of fender pile has been ensured, can reduce the straightness debugging step of hanging down of built-in steel pipe 1 simultaneously, the hoist and mount efficiency and the engineering efficiency of built-in steel pipe 1 have been.

In some optional embodiments, the positioning assembly 7 further comprises an inclinometer for detecting the verticality of the steel tube 1 to ensure that the steel tube 1 is vertically hung in the outer sleeve.

Illustratively, the inclinometer comprises an inclinometry line and a computer in communication connection with the inclinometry line, wherein the inclinometry line is arranged on the outer wall of the built-in steel pipe 1, and a constructor can monitor the verticality of the built-in steel pipe 1 in real time through the computer and directly take out the inclinometry line from a gap between the built-in steel pipe 1 and the outer sleeve for reuse after the built-in steel pipe 1 is stably hoisted. Of course, in other embodiments of the present invention, other structures can be used for the inclinometer, and need not be described herein.

The invention also discloses a construction method of the fender post capable of rapidly recovering the steel pipe, which adopts the fender post capable of rapidly recovering the steel pipe, and comprises the following steps: inserting an outer sleeve in the excavation site and removing soil in the outer sleeve to form a fender pile hole in the excavation site; sequentially connecting a plurality of sections of built-in steel pipes 1 and integrally hoisting the plurality of sections of built-in steel pipes 1 into an outer sleeve; pouring concrete 2 in an effective space between the built-in steel pipe 1 and the outer sleeve; and after the concrete 2 is cured to reach the standard and the foundation pit engineering and the underground main structure are constructed, recovering the multi-section built-in steel pipe 1 and separating the multi-section built-in steel pipe from the concrete 2.

It can be understood that the fender pile capable of rapidly recovering the steel pipe of the embodiment pours the concrete 2 with higher strength between the built-in steel pipe 1 and the outer sleeve in the construction process, so that the overall strength of the fender pile can be effectively improved; due to the adoption of the built-in steel pipe 1, the built-in steel pipe 1 can be used as a template for pouring concrete 2, the built-in steel pipe 1 can assist the fender pile to bear the water and soil pressure in an excavation site due to the high strength of the built-in steel pipe 1, the hoisting and taking-out efficiency of the multi-section built-in steel pipe 1 is improved, the multi-section built-in steel pipe 1 can be quickly and reliably recycled, the multi-time reuse of the multi-section built-in steel pipe 1 is realized, the strength, the construction efficiency and the construction quality of the fender pile are improved, and the construction cost of the fender pile is reduced.

It should be noted that, the construction method of the fender post capable of rapidly recovering the steel pipe according to the embodiment of the present invention, the construction step of the outer casing in the excavation site, the specific construction step of the construction project of the deep foundation pit, and the construction step of forming the underground wall body by matching the plurality of fender posts are not the key point of the present invention, and those skilled in the art can determine the construction method and the actual requirements of the construction site by referring to the prior art.

In some embodiments, before hoisting the multiple sections of the built-in steel pipes 1, the multiple sections of the built-in steel pipes 1 are connected with the steel wire ropes 4 through the built-in steel pipe 1 connecting blocks, and then are integrally hoisted into the hole of the fender post, concrete 2 is poured between the outer casing and the multiple sections of the built-in steel pipes 1, the multiple sections of the built-in steel pipes 1 are recovered after the concrete 2 is cured to reach the standard and the foundation pit engineering and underground main structure construction are finished, when the recovery is carried out, the built-in steel pipes 1 at the top are firstly pulled out, the built-in steel pipes 1 at the top are detached when the built-in steel pipes 1 at the top are detached to the surface of an excavation site, the steel wire ropes 4 connected with the built-in steel pipes 1 are connected with a hoisting machine, the hoisting machine is used for hoisting the steel wire ropes 4 and migrating out the next section of the built-in steel pipes 1, after the section of the built-in steel pipes 1 is pulled out of the ground, the steel, and the rest can be done in the same way until all the built-in steel pipes 1 positioned in the enclosure pile hole are recovered.

It can be understood that, after the maintenance of the concrete 2 reaches the standard and the construction of the foundation pit engineering and the underground main body structure is finished, because the built-in steel pipes 1 are detachably connected through the built-in steel pipe 1 connecting blocks of the built-in steel pipe 1 among the built-in steel pipes 1, a constructor can use the lifting device to grab the built-in steel pipes 1 and separate the built-in steel pipe 1 connecting blocks of the built-in steel pipe 1 from the built-in steel pipes 1 adjacent to the built-in steel pipes 1, in the lifting process, the contact area between a single built-in steel pipe 1 and the concrete 2 is small, the friction force between the built-in steel pipe 1 and the concrete 2 in the lifting process can be effectively reduced, the built-in steel pipe 1 can be conveniently separated from the concrete 2, the repeated utilization of the built-in steel pipes 1 is ensured, and the reinforcement cost and the. Two ends of the steel wire rope 4 are respectively connected with two adjacent sections of the built-in steel pipes 1, so that when the built-in steel pipes 1 are taken out, the built-in steel pipes 1 which are adjacent to each other can be lifted through the steel wire rope 4 after the built-in steel pipes 1 which are located at the top are lifted, all the built-in steel pipes 1 are dismantled by analogy in sequence, the built-in steel pipes 1 can be taken out and reused conveniently, and the taking-out efficiency of the built-in steel pipes 1 is improved.

The built-in steel pipe 1 connecting block can be used for better detachably connecting two adjacent sections of built-in steel pipes 1, so that the built-in steel pipes 1 cannot be separated from each other when being hoisted in an outer sleeve of an enclosure pile hole, the hoisting depth of the sections of built-in steel pipes 1 in the enclosure pile hole is ensured, and the integral reinforcing effect and the integral shearing resisting effect of the sections of built-in steel pipes 1 can also be ensured. The built-in steel pipe 1 connecting blocks of the built-in steel pipes 1 connect the built-in steel pipes 1 sequentially and stably, the whole built-in steel pipe 1 can be conveniently assembled and connected before the built-in steel pipes 1 are hoisted, and the built-in steel pipes 1 can be directly hoisted in the outer sleeve by directly using the hoisting device, so that the construction efficiency of the enclosure pile is improved.

In some embodiments, before the concrete 2 is poured in the effective space between the built-in steel pipe 1 and the outer sleeve, the first positioning member 71 is hoisted to the bottom wall of the fender post hole, the second positioning member 72 is installed at the top of the fender post hole, the multiple sections of built-in steel pipes 1 are hoisted, and the multiple sections of built-in steel pipes 1 are matched with the first positioning member 71 and the second positioning member 72, so that the multiple sections of built-in steel pipes 1 are hoisted at preset positions.

In some embodiments, before the concrete 2 is cast in the casting space between the inner steel tube 1 and the outer sleeve, the positioning assembly 7 is installed in the outer sleeve, and the plurality of inner steel tubes 1 are lifted and the inner steel tubes 1 are installed at the predetermined positions by the positioning assembly 7.

It can be understood that the positioning assembly 7 can ensure the hoisting accuracy of the whole built-in steel pipe 1 in the hole of the fender pile, and can ensure that the space between the built-in steel pipe 1 and the outer sleeve is uniformly distributed, thereby ensuring the integral strength of the fender pile after the concrete 2 is poured.

In some embodiments, a plurality of evenly distributed fixing pieces are interposed between the inner steel pipe 1 and the outer sleeve before the concrete 2 is poured.

It can be understood that the fixing pieces uniformly distributed around the built-in steel pipe 1 can play a good role in reinforcing the concrete 2, so that the strength of the fender pile is effectively improved.

Illustratively, the fixing member comprises a conduit, a steel bar or the like, and the specific structure of the fixing member can be determined according to the actual construction requirement.

In some optional embodiments, the positioning assembly 7 is provided with a plurality of matching holes matched with the fixing pieces, so that a positioning effect can be achieved on the installation of the fixing pieces between the built-in steel pipe 1 and the outer sleeve, and a reinforcing effect of the plurality of fixing pieces on the concrete 2 is ensured.

Example (b):

a fender post capable of rapidly recovering a steel pipe and a construction method thereof according to an embodiment of the present invention will be described with reference to fig. 1 to 6.

As shown in fig. 1 to 6, the fender pile capable of rapidly recovering steel pipes of the present embodiment includes a plurality of sections of built-in steel pipes 1, concrete 2, a connecting block of the built-in steel pipes 1, a plurality of steel cables 4, an inner support rod 5, and a positioning assembly 7. And a fender pile hole is formed in the excavation site.

The built-in steel pipes 1 are in multiple sections, the built-in steel pipes 1 are hollow, the multiple sections of built-in steel pipes 1 are sequentially connected and arranged in the enclosure pile hole, and an effective space is formed between the outer wall of the multiple sections of built-in steel pipes 1 and the enclosure pile hole.

The concrete 2 is poured in the effective space and forms a whole with the multiple sections of the built-in steel pipes 1 to bear force together.

The inner wall of each built-in steel pipe 1 is welded with a built-in steel pipe 1 connecting block, one end of each built-in steel pipe 1 connecting block is welded on the inner wall of one end of each built-in steel pipe 1, and the other end of each built-in steel pipe 1 connecting block is inserted into a through hole of each adjacent built-in steel pipe 1, so that the two adjacent built-in steel pipes 1 can be detachably connected. The connecting block for the built-in steel pipes 1 comprises a plurality of wedging blocks 3, one side, close to the inner wall of the built-in steel pipe 1, of each wedging block 3 is provided with a horizontal section 31 and an inclined section 32, one end of each horizontal section 31 is welded on the inner wall of one built-in steel pipe 1, and the other end of each horizontal section 31 extends into the other built-in steel pipe 1 and is connected with the inclined section 32. The inclined section 32 is provided extending in a direction away from the horizontal section 31 in a direction away from the inner wall of the through-hole of the inner steel pipe 1.

A steel wire rope 4 is detachably connected to a connecting block of the built-in steel pipe 1 in each built-in steel pipe 1, and the steel wire rope 4 can be detachably connected with the adjacent built-in steel pipe 1. When the multiple sections of built-in steel pipes 1 are arranged in the enclosure pile hole, the length of the steel wire rope 4 on each section of built-in steel pipe 1 is configured to meet the requirement that the adjacent built-in steel pipe 1 is kept in the enclosure pile hole when the built-in steel pipe 1 is lifted away from the earth surface of an excavation site.

The inner supporting rods 5 are multiple, one ends of the inner supporting rods 5 are mutually welded and connected, the other ends of the inner supporting rods are welded on the inner wall of the built-in steel pipe 1, one end of each steel wire rope 4 is detachably connected with the inner supporting rod 5, and the other end of each steel wire rope is detachably connected with the inner wall of the adjacent built-in steel pipe 1. The inner wall of the built-in steel pipe 1 is provided with the hanging lug 6, one end of the steel wire rope 4 is connected with the hanging lug 6, and the portability of the connection of the steel wire rope 4 and the built-in steel pipe 1 and the installation efficiency of the built-in steel pipe 1 can be improved. A plurality of inner support rods 5 are welded on the connecting blocks of the built-in steel pipes 1, and at least part of the projection of the inner support rods 5 on the inner wall of the built-in steel pipes 1 is overlapped with the connecting positions of the two sections of the built-in steel pipes 1.

The positioning component 7 is used for positioning the built-in steel pipe 1 so as to enable the built-in steel pipe 1 to be hung on the preset position of the fender post. The positioning assembly 7 includes a first positioning member 71 and a second positioning member 72. One end of the first positioning member 71 can be inserted into the through hole of the built-in steel pipe 1. The second positioning member 72 is provided with a mounting hole 721, and the inner wall of the mounting hole 721 can abut against the outer wall of the built-in steel pipe 1.

A construction method of a fender pile capable of rapidly recovering steel pipes adopts the fender pile capable of rapidly recovering steel pipes, and comprises the following steps: inserting an outer sleeve in the excavation site and removing soil in the outer sleeve to form a fender pile hole in the excavation site; connecting a plurality of sections of built-in steel pipes 1 with a steel wire rope 4 through built-in steel pipe 1 connecting blocks, and integrally hoisting the built-in steel pipes into the hole of the enclosure pile; when the multiple sections of the built-in steel pipes 1 are hoisted, the first positioning piece 71 is installed on the bottom wall of the enclosure pile hole, the second positioning piece 72 is installed at the top of the enclosure pile hole, the multiple sections of the built-in steel pipes 1 are hoisted, and the multiple sections of the built-in steel pipes 1 are matched with the first positioning piece 71 and the second positioning piece 72, so that the multiple sections of the built-in steel pipes 1 are hoisted on preset positions; pouring concrete 2 between the outer sleeve and the multiple sections of the built-in steel pipes 1; after the concrete 2 is cured to reach the standard and the foundation pit engineering and the underground main structure construction are finished, the multiple sections of the built-in steel pipes 1 are recovered, the built-in steel pipes 1 at the top are firstly pulled out during recovery, the built-in steel pipes 1 at the top are detached when the built-in steel pipes 1 at the top are detached to the surface of an excavation site, the steel wire ropes 4 connected with the built-in steel pipes 1 are connected with a crane, the crane pulls the steel wire ropes 4 and migrates the next section of the built-in steel pipes 1, the steel wire ropes 4 at the lower end ends of the sections of the built-in steel pipes 1 are unbundled and lifted and placed well after the sections of the built-in steel pipes 1 are pulled out of the ground, then the crane is tightly bound with the sections of the steel wire ropes 4 which are just unbundled, and the rest is done until all the built.

In the description herein, references to the description of "some embodiments," "other embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.