阅读说明：本技术 一种装配式基坑边坡支护结构 (Assembled foundation ditch side slope supporting construction ) 是由 蒋国平 代学灵 肖三霞 李润 于 2021-01-25 设计创作，主要内容包括：本发明公开了一种装配式基坑边坡支护结构,包括数量为若干个的固定板,若干个所述固定板的下端均固定连接有锚桩,若干个所述锚桩的内部均固定连接有贯穿固定板的锚索,若干个所述锚索的外部均固定连接有位于固定板上端的限位块,若干个所述固定板的上端均活动连接有位于限位块外部的固定柱,相邻的两个所述固定柱的上端均与第一限位杆活动连接。该装配式基坑边坡支护结构,具备施工方便、工期短、资源利用率高和防护性强等优点,解决了高压旋喷桩施工中有大量泥浆排出,容易引起污染,对于无填充物的岩溶地段永冻土无法使用,而槽钢钢板桩则不能挡水和土中的细小颗粒,支护刚度小,开挖后变形较大,存在一定的使用限制的问题。(The invention discloses an assembled foundation pit side slope supporting structure which comprises a plurality of fixing plates, wherein the lower ends of the fixing plates are fixedly connected with anchor piles, the interiors of the anchor piles are fixedly connected with anchor cables penetrating through the fixing plates, the exteriors of the anchor cables are fixedly connected with limiting blocks positioned at the upper ends of the fixing plates, the upper ends of the fixing plates are movably connected with fixing columns positioned outside the limiting blocks, and the upper ends of two adjacent fixing columns are movably connected with a first limiting rod. This assembled foundation ditch side slope supporting construction possesses advantages such as construction convenience, time limit for a project are short, resource utilization is high and protectiveness is strong, has solved and has had a large amount of mud to discharge in the high pressure jet grouting pile construction, arouses the pollution easily, can't use to the karst section permafrost of no filler, and channel-section steel sheet pile then can not keep off the tiny granule in water and the soil, and it is little to strut rigidity, and it is great to warp after the excavation, has the problem of certain use restriction.)

1. An assembled foundation pit slope supporting structure comprises a plurality of fixing plates (1), and is characterized in that the lower ends of the fixing plates (1) are fixedly connected with anchor piles (2), the interiors of the anchor piles (2) are fixedly connected with anchor cables (3) penetrating through the fixing plates (1), and the exteriors of the anchor cables (3) are fixedly connected with limit blocks (4) positioned at the upper ends of the fixing plates (1); the upper end of the fixed plate (1) is movably connected with fixed columns (5) positioned outside the limiting blocks (4), the lower parts of two adjacent fixed columns (5) are movably connected with a first limiting rod (6), the upper end of the first limiting rod (6) is movably connected with a second limiting rod (7), and first supporting plates (8) are movably connected between the first limiting rod (6) and the second limiting rod (7); the lower part of each fixing column (5) is fixedly connected with a guide column (9) which sequentially penetrates through a first limiting rod (6), a first supporting plate (8) and a second limiting rod (7), the upper end of each second limiting rod (7) is slidably connected with two fastening bolts (10) which sequentially penetrate through the second limiting rods (7), the first limiting rods (6) and the fixing columns (5), and the lower ends of the fastening bolts (10) are in threaded connection with the fixing plate (1); the outer portion of the fixing column (5) is connected with a second supporting plate (11) in a sliding mode, the number of springs (12) which are a plurality of are fixedly connected to the lower end of the second supporting plate (11), a limiting ring (13) which is located on the upper side of the second supporting plate (11) is connected to the outer portion of the fixing column (5) in a sliding mode, and a fastening nut (14) which is located on the upper side of the limiting ring (13) is connected to the outer portion of the fixing column (5) in a threaded mode.

2. An assembled foundation pit slope supporting structure according to claim 1, wherein a plurality of the fixed plates (1) are arranged in an array at equal intervals, the anchor cables (3) are steel bars, the anchor piles (2) are concrete, and the anchor piles (2) and the anchor cables (3) are integrally cast by the concrete.

3. The assembled foundation pit slope supporting structure according to claim 1, wherein the upper end of the fixing plate (1) is provided with a first through hole (101) matched with the diameter of the anchor cable (3), and the upper end of the fixing plate (1) is provided with four thread grooves (102) matched with the fastening bolts (10).

4. The assembled foundation pit slope supporting structure according to claim 1, wherein the fixing column (5) comprises a column body (51), a flange (52) coaxial with the column body (51) is fixedly connected to the lower end of the column body (51), an abdicating groove (53) matched with the limiting block (4) is formed in the lower end of the column body (51), and the inner diameter of the flange (52) is matched with the diameter of the abdicating groove (53).

5. An assembled foundation pit slope supporting structure according to claim 1, wherein the first limiting rods (6) and the second limiting rods (7) are both T-shaped steel, four first limiting rods (6) located on the outer side of the same fixing column (5) are distributed in an annular and equidistant mode, and a plurality of first limiting rods (6) are respectively distributed symmetrically with a plurality of second limiting rods (7).

6. The assembled foundation pit slope supporting structure according to claim 4, wherein the lower end of the guide column (9) is fixedly connected with the upper end of the flange (52), and the upper ends of the first limiting rod (6), the second limiting rod (7) and the flange (52) are provided with second through holes (103) matched with the screw rods of the fastening bolts (10).

7. The assembled foundation pit slope supporting structure of claim 1, wherein the upper ends of the first limiting rod (6), the first supporting plate (8) and the second limiting rod (7) are respectively provided with a guide hole (91) matched with the guide post (9), the opposite ends of the second limiting rod (7) and the first limiting rod (6) are respectively and fixedly connected with rubber sealing strips (81) which are respectively positioned at the upper end and the lower end of the first supporting plate (8) and positioned at the outer side of the guide hole (91), and a gap is formed between the opposite ends of the first limiting rod (6) and the second limiting rod (7).

8. The assembled foundation pit slope supporting structure according to claim 4, wherein the cylinder (51) is externally provided with four adjusting grooves (54) matched with four corners of the second supporting plate (11), the four corners of the second supporting plate (11) are slidably connected with the fixing column (5) positioned on the outer side of the second supporting plate (11) through the adjusting grooves (54), the inner diameter of the limiting ring (13) is matched with the diameter of the cylinder (51), and the cylinder (51) is externally provided with a first thread matched with the fastening nut (14).

9. An assembled foundation pit slope supporting structure according to claim 1, wherein a plurality of springs (12) are arranged at the lower end of the same second supporting plate (11) in an array, the lower ends of the springs (12) are in contact with the upper end of the first supporting plate (8), and the springs (12) are in a compressed state.

Technical Field

The invention relates to a foundation pit support, in particular to an assembled foundation pit side slope support structure.

Background

The foundation pit support is a retaining, reinforcing and protecting measure adopted for the side wall of the foundation pit and the surrounding environment in order to ensure the safety of the construction of an underground structure and the surrounding environment of the foundation pit, and the definition of the industry standard of the people's republic of China' JGJ120-2012 for the foundation pit support is as follows: in order to protect the safety of the construction of the underground main body structure and the surrounding environment of the foundation pit, the foundation pit adopts the measures of temporary retaining, reinforcing, protecting and underground water controlling.

At present, a high-pressure jet grouting pile and a channel steel sheet pile are mainly adopted for foundation pit slope support, the high-pressure jet grouting pile is made of cement slurry, the cement slurry is sprayed into a soil layer through a rotating nozzle at high pressure to form a cement soil reinforcement body through mixing with a soil body, pile rows are formed through mutual overlapping and are used for retaining soil and stopping water, the channel steel sheet pile is a simple steel sheet pile enclosure wall and is formed by overlapping and connecting channel steel in a positive and reverse mode or in a side-by-side mode, however, a large amount of slurry is discharged during construction of the high-pressure jet grouting pile, pollution is easy to cause, the high-pressure jet grouting pile cannot be used for karst soil of a karst section without fillers, the channel steel sheet pile cannot retain fine particles in water and soil, supporting rigidity is small, deformation after excavation is large, certain use limitation exists, and therefore the assembly type foundation pit slope support structure is provided to solve the problems.

Disclosure of Invention

The invention aims to provide an assembled foundation pit slope supporting structure to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

an assembled foundation pit slope supporting structure comprises a plurality of fixed plates, wherein the lower ends of the fixed plates are fixedly connected with anchor piles, the interiors of the anchor piles are fixedly connected with anchor cables penetrating through the fixed plates, the exteriors of the anchor cables are fixedly connected with limit blocks positioned at the upper ends of the fixed plates, the upper ends of the fixed plates are movably connected with fixed columns positioned outside the limit blocks, the upper ends of two adjacent fixed columns are movably connected with a first limit rod, the upper ends of the first limit rods are movably connected with a second limit rod, a first supporting plate is movably connected between the first limit rods and the second limit rods, and the upper ends of the fixed columns are fixedly connected with guide columns penetrating through the first limit rods, the first supporting plate and the second limit rods in sequence, a plurality of the equal sliding connection in upper end of second gag lever post has quantity to be two and runs through the fastening bolt of second gag lever post, first gag lever post and fixed column in proper order, fastening bolt's lower extreme and fixed plate threaded connection, a plurality of the equal sliding connection in outside of fixed column has the second backup pad, a plurality of the equal fixedly connected with quantity of lower extreme of second backup pad is the spring of a plurality of, a plurality of the equal sliding connection in outside of fixed column has the spacing collar that is located the second backup pad upside, a plurality of the equal threaded connection in outside of fixed column has the fastening nut that is located the spacing collar upside.

As a still further scheme of the invention: the anchor pile is characterized in that the fixing plates are distributed in an array equidistance mode, the anchor cables are steel bars, the anchor piles are concrete, and the anchor piles and the anchor cables are integrally poured to form the concrete.

As a still further scheme of the invention: the anchor cable fixing device is characterized in that the upper end of the fixing plate is provided with first through holes matched with the diameter of the anchor cable, and the upper end of the fixing plate is provided with four thread grooves matched with the fastening bolts.

As a still further scheme of the invention: the fixed column includes the cylinder, the lower extreme fixedly connected with of cylinder and the coaxial ring flange of cylinder, the groove of stepping down with stopper looks adaptation is seted up to the lower extreme of cylinder, the internal diameter of ring flange and the diameter looks adaptation in groove of stepping down.

As a still further scheme of the invention: first gag lever post and second gag lever post are T shape steel, are located four in the same fixed column outside first gag lever post is annular equidistance and distributes, a plurality of first gag lever post is respectively with a plurality of the second gag lever post is the symmetric distribution.

As a still further scheme of the invention: the lower extreme of guide post and the upper end fixed connection of ring flange, the second through-hole with fastening bolt's screw rod looks adaptation is all seted up to the upper end of first gag lever post, second gag lever post and ring flange.

As a still further scheme of the invention: the guiding hole that all offers with guide post looks adaptation is seted up to the upper end of first gag lever post, first backup pad and second gag lever post, the equal fixedly connected with in looks remote site of second gag lever post and first gag lever post is located the rubber seal strip that the lower extreme just is located the guiding hole outside on the first backup pad respectively, there is the clearance between the remote site of first gag lever post and second gag lever post.

As a still further scheme of the invention: the adjustable clamping device is characterized in that the number of the adjusting grooves is four, the adjusting grooves are matched with the four corners of the second supporting plate, the four corners of the second supporting plate are connected with fixing columns located on the outer side of the second supporting plate in a sliding mode through the adjusting grooves, the inner diameter of the limiting ring is matched with the diameter of the cylinder, and first threads matched with the fastening nuts are arranged on the outer portion of the cylinder.

As a still further scheme of the invention: the springs located at the lower end of the same second supporting plate are distributed in an array mode, the lower ends of the springs are in contact with the upper end of the first supporting plate, and the springs are in a compressed state.

Compared with the prior art, the invention has the beneficial effects that:

1. through setting up the fixed plate, the anchor pile, the anchor rope, the stopper, the fixed column, first gag lever post, the second gag lever post, first backup pad, the guide post, fastening bolt, the second backup pad, a spring, spacing collar and fastening nut, just can constitute a whole through the threaded connection mode, the dismouting is convenient, and construction convenience, the time limit for a project is short, and can not produce the pollution, it is lower to the soil layer requirement, can take out the accessory after the foundation ditch construction finishes the backfill soil and retrieve reuse, and simultaneously, single accessory size is less, the transportation of being convenient for, resource utilization rate and environmental protection benefit are improved.

2. Through setting up the fixed plate, the anchor pile, the anchor rope, the stopper, the fixed column, first gag lever post, the second gag lever post, first backup pad, rubber seal strip, the guide post, fastening bolt, the second backup pad, a spring, spacing collar and fastening nut, through first gag lever post, the second gag lever post, first backup pad can prevent that water and tiny granule in the soil from permeating, prevent that the rainwash from causing the soil layer cavity, improve slope protection intensity, through first backup pad of spring coupling and second backup pad, when the dismouting of being convenient for, improve slope protection resistance to compression shock resistance, improve and strut rigidity, further improve slope protection intensity, effectively prevent slope protection deformation after the foundation ditch excavation.

Drawings

FIG. 1 is a schematic structural view of an assembled foundation pit slope supporting structure;

FIG. 2 is a top view of an assembled foundation pit slope supporting structure;

FIG. 3 is an enlarged view of the portion A in the structure diagram 1 of the assembled foundation pit slope support;

FIG. 4 is an enlarged view of the part B in the construction diagram 2 of the assembled foundation pit slope support;

fig. 5 is a connection diagram of a first limiting rod and a second limiting rod in an assembled foundation pit slope supporting structure.

In the figure: 1. a fixing plate; 101. a first through hole; 102. a thread groove; 103. a second through hole; 2. anchoring piles; 3. an anchor cable; 4. a limiting block; 5. fixing a column; 51. a cylinder; 52. a flange plate; 53. a yielding groove; 54. an adjustment groove; 6. a first limit rod; 7. a second limiting rod; 8. a first support plate; 81. a rubber seal strip; 9. a guide post; 91. a guide hole; 10. fastening a bolt; 11. a second support plate; 12. a spring; 13. a limiting ring; 14. and (5) tightening the nut.

Detailed Description

Referring to fig. 1 to 5, in the embodiment of the present invention, an assembled foundation pit slope supporting structure includes a plurality of fixing plates 1, anchor piles 2 are fixedly connected to lower ends of the fixing plates 1, anchor cables 3 penetrating through the fixing plates 1 are fixedly connected to insides of the anchor piles 2, the fixing plates 1 are arranged in an array and at equal intervals, the anchor cables 3 are steel bars, the anchor piles 2 are concrete, the anchor piles 2 and the anchor cables 3 are integrally cast with concrete, stoppers 4 positioned at upper ends of the fixing plates 1 are fixedly connected to outsides of the anchor cables 3, fixing columns 5 positioned outside the stoppers 4 are movably connected to upper ends of the fixing plates 1, each fixing column 5 includes a cylinder 51, a flange 52 coaxial with the cylinder 51 is fixedly connected to a lower end of the cylinder 51, a receding groove 53 adapted to the stopper 4 is formed at a lower end of the cylinder 51, an inner diameter of the flange 52 is adapted to a diameter of the receding groove 53, first gag lever post 6 swing joint sets up in ring flange 52 upper end, the equal swing joint in upper end of the first gag lever post 6 of a plurality of has second gag lever post 7, first gag lever post 6 and second gag lever post 7 are T shape steel, four first gag lever posts 6 that are located the same fixed column 5 outside are annular equidistance and distribute, the first gag lever post 6 of a plurality of is the symmetric distribution with a plurality of second gag lever post 7 respectively, equal swing joint has first backup pad 8 between the first gag lever post 6 of a plurality of and a plurality of second gag lever post 7 buckling parts, the equal fixedly connected with in upper end of a plurality of fixed column 5 runs through first gag lever post 6 in proper order, the guide post 9 of first backup pad 8 and second gag lever post 7, first gag lever post 6, the guiding hole 91 with the guide post 9 looks adaptation is all seted up to the upper end of first backup pad 8 and second gag lever post 7, the looks butt fixedly connected with of second gag lever post 7 and first gag lever post 6 is located first backup pad 8 upper and lower extreme respectively and is located the guiding hole 91 outside The rubber sealing strip 81 is characterized in that a gap is formed between opposite ends of a first limiting rod 6 and a second limiting rod 7, the upper ends of a plurality of second limiting rods 7 are respectively connected with two fastening bolts 10 which sequentially penetrate through the second limiting rods 7, the first limiting rod 6 and a fixing column 5 in a sliding manner, the upper end of a fixing plate 1 is provided with a first through hole 101 matched with the diameter of an anchor cable 3, the upper end of the fixing plate 1 is provided with four thread grooves 102 matched with the fastening bolts 10, the lower end of a guide column 9 is fixedly connected with the upper end of a flange 52, the upper ends of the first limiting rod 6, the second limiting rod 7 and a flange 52 are respectively provided with a second through hole 103 matched with a screw rod of the fastening bolt 10, the lower end of the fastening bolt 10 is connected with the fixing plate 1 in a threaded manner, the outer parts of a plurality of fixing columns 5 are respectively connected with a second supporting plate 11 in a sliding manner, the lower ends of a plurality of the second supporting plates 11 are respectively, spring 12 that is located a plurality of same second backup pad 11 lower extreme is the array distribution, the lower extreme and the 8 upper end contacts of first backup pad of spring 12, and spring 12 is compression state, the equal sliding connection in outside of a plurality of fixed column 5 has spacing collar 13 that is located 11 upsides of second backup pad, the equal threaded connection in outside of a plurality of fixed column 5 has fastening nut 14 that is located spacing collar 13 upside, the adjustment tank 54 that quantity is four and with the 11 four corners looks adaptations of second backup pad is seted up to cylinder 51's outside, the four corners of a plurality of second backup pad 11 all passes through adjustment tank 54 and is located the fixed column 5 sliding connection in the 11 outside of second backup pad, the internal diameter of spacing collar 13 and cylinder 51's diameter looks adaptation, the first screw thread with fastening nut 14 looks adaptation is seted up to cylinder 51's outside.

The working principle of the invention is as follows: the assembled foundation pit slope supporting structure is characterized in that a fixing plate 1, an anchor pile 2, an anchor cable 3, a limiting block 4, a fixing column 5, a first limiting rod 6, a second limiting rod 7, a first supporting plate 8, a rubber sealing strip 81, a guide post 9, a fastening bolt 10, a second supporting plate 11, a spring 12, a limiting ring 13 and a fastening nut 14 are arranged, the assembled foundation pit slope supporting structure can be integrally formed in a threaded connection mode, is convenient to disassemble and assemble, convenient to construct, short in construction period, free of pollution, low in requirements for soil layers, capable of taking out accessories after backfilling is completed after foundation pit construction and recycling, small in size of a single accessory, convenient to transport, capable of improving resource utilization rate and environmental protection benefits, capable of preventing fine particles in water and soil from permeating through the first limiting rod 6, the second limiting rod 7 and the first supporting plate 8, preventing soil layer cavities caused by rainwater washing, and improving slope protection strength, connect first backup pad 8 and second backup pad 11 through spring 12, in the dismouting of being convenient for, improve bank protection resistance to compression and vibration ability, improve and strut rigidity, further improve bank protection intensity, effectively prevent that the bank protection is out of shape behind the foundation ditch excavation, through the above setting, it is convenient to possess the construction, the time limit for a project is short, advantages such as resource utilization is high and protectiveness is strong, it has a large amount of mud to discharge to have solved in the high pressure jet grouting pile construction, cause the pollution easily, can't use forever to the karst section of no filler, and channel-section steel sheet pile then can not keep off the tiny granule in water and the soil, strut rigidity little, it is great to excavate after the deformation, there is the problem of certain use restriction.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention are equivalent to or changed within the technical scope of the present invention.