阅读说明：本技术 一种不良地基中沉管式人工挖孔灌注桩施工设备 (Immersed tube type manual hole digging cast-in-place pile construction equipment in bad foundation ) 是由 徐丽娟 王慧春 罗清芸 于 2020-12-14 设计创作，主要内容包括：本发明涉及建筑施工领域,且公开了一种不良地基中沉管式人工挖孔灌注桩施工设备,包括主体件和加固板,所述主体件呈管状,且主体件由四个弧形板组成,且四个弧形板的边缘两两连接形成一个管状结构,弧形板又由底部板和顶部板组成,且顶部板和底部板均设置为分布角度为九十度的弧形,所述底部板的顶部与顶部板的底部固定连接,所述顶部板的底部开设有灌注口,所述灌注口处安装有灌注管,所述灌注管上安装有控制阀,所述底部板的底部开设有刃脚。该不良地基中沉管式人工挖孔灌注桩施工设备,采用下沉钢护筒及配套机械进行作业,可以加快施工进度,降低施工成本；在护筒内进行施工作业,不受不良地质条件的影响施工,作业人员安全有保障。(The invention relates to the field of building construction, and discloses immersed tube type manual hole digging and filling pile construction equipment in a bad foundation, which comprises a main body part and reinforcing plates, wherein the main body part is tubular, the main body part consists of four arc plates, the edges of the four arc plates are connected in pairs to form a tubular structure, the arc plates consist of a bottom plate and a top plate, the top plate and the bottom plate are both provided with arcs with distribution angles of ninety degrees, the top of the bottom plate is fixedly connected with the bottom of the top plate, the bottom of the top plate is provided with a filling opening, the filling opening is provided with a filling pipe, the filling pipe is provided with a control valve, and the bottom of the bottom plate is provided with a blade foot. The sinking pipe type manual hole digging and filling pile construction equipment in the bad foundation adopts the sinking steel pile casing and the matched machinery to operate, so that the construction progress can be accelerated, and the construction cost can be reduced; construction operation is carried out in the protective cylinder, construction is not influenced by adverse geological conditions, and safety of operators is guaranteed.)

1. The utility model provides a manual hole bored concrete pile construction equipment that digs of immersed tube formula in bad ground, includes main part spare (1) and gusset plate (2), its characterized in that: the main body part (1) is tubular, the main body part (1) is composed of four arc-shaped plates, the edges of the four arc-shaped plates are connected in pairs to form a tubular structure, the arc-shaped plates are composed of a bottom plate (3) and a top plate (4), the top plate (4) and the bottom plate (3) are both arranged into arcs with distribution angles of ninety degrees, and the top of the bottom plate (3) is fixedly connected with the bottom of the top plate (4);

the bottom of the top plate (4) is provided with a pouring opening (5), a pouring pipe (6) is arranged at the pouring opening (5), a control valve (7) is arranged on the pouring pipe (6), and the bottom of the bottom plate (3) is provided with a cutting edge (8);

reinforcing plate (2) set up between four top plates (4), and four draw-in grooves (9) that correspond four top plates (4) respectively are seted up to the bottom of reinforcing plate (2), the inside of draw-in groove (9) articulates there is anchor strut (10), the one end that reinforcing plate (2) were kept away from in anchor strut (10) is connected through reinforcing bolt (11) with the inner wall of top plate (4), and the one end that anchor strut (10) are located draw-in groove (9) is connected with reinforcing plate (2) through reinforcing screw (12).

2. The immersed tube type manual hole digging and pouring pile construction equipment in the poor foundation according to claim 1, characterized in that: fixed otic placode (13) are all installed to the both sides of bottom plate (3) inner wall, and the middle part of two adjacent fixed otic placodes (13) is run through and is provided with set screw (14).

3. The immersed tube type manual hole digging and pouring pile construction equipment in the poor foundation according to claim 1, characterized in that: sealing gaskets (15) are arranged between the bottom plate (3), the top plate (4) and the fixed ear plates (13) which are adjacent.

4. The immersed tube type manual hole digging and pouring pile construction equipment in the poor foundation according to claim 1, characterized in that: the inner wall fixedly connected with of top plate (4) corresponds locating piece (16) with anchor strut (10), the one end that anchor strut (2) was kept away from in anchor strut (10) and the bottom joint of locating piece (16), and reinforcing bolt (11) run through anchor strut (10) and locating piece (16).

5. The immersed tube type manual hole digging and pouring pile construction equipment in the poor foundation according to claim 1, characterized in that: the top of one end of the reinforcing rod (10) positioned inside the clamping groove (9) is abutted against the inner top wall of the clamping groove (9).

Technical Field

The invention relates to the field of building construction, in particular to a immersed tube type manual hole digging and filling pile construction device in a bad foundation.

Background

The foundation refers to a soil body or a rock body for supporting a foundation under a building, the soil layer serving as the building foundation is divided into rock, gravel soil, sand soil, silt, cohesive soil and artificial filling soil, the foundation comprises a natural foundation and an artificial foundation (composite foundation), the natural foundation is a natural soil layer which does not need human reinforcement, the artificial foundation needs human reinforcement, and a stone chip cushion, a sand cushion and mixed lime soil are commonly backfilled and tamped.

When the foundation is constructed, the concrete needs to be poured into the soil foundation, but the soil quality of some foundation construction positions is poor, and in the excavation process, the excavated pot hole suddenly collapses into the pot hole, so that the excavation efficiency of the foundation is low and the foundation is dangerous. Therefore, the construction equipment for the immersed tube type manual hole digging cast-in-place pile in the poor foundation is designed.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a immersed tube type manual hole digging and filling pile construction device in a bad foundation, which solves the problems that the excavation efficiency of the foundation is low and the danger is large because the excavated pot hole suddenly sinks towards the pot hole due to poor soil quality of the construction position of some foundations.

In order to achieve the purpose, the invention adopts the technical scheme that:

the utility model provides a manual hole bored concrete pile construction equipment that digs of immersed tube formula in bad ground, includes main part spare and gusset plate, main part spare is the tubulose, and main part spare comprises four arcs, and two liang of connections in the edge of four arcs form a tubular structure, and the arc comprises bottom plate and top plate again, and top plate and bottom plate all set up to distribute the arc that the angle is ninety degrees, the top of bottom plate and the bottom fixed connection of top plate.

The bottom of the top plate is provided with a filling opening, the filling opening is provided with a filling pipe, the filling pipe is provided with a control valve, and the bottom of the bottom plate is provided with a cutting edge.

The gusset plate sets up between four top plates, and the bottom of gusset plate sets up four draw-in grooves that correspond four top plates respectively, the inside of draw-in groove articulates there is the anchor strut, the one end that the anchor strut kept away from the gusset plate passes through reinforcing bolt with the inner wall of top plate to be connected, and the one end that the anchor strut is located the draw-in groove is connected with the gusset plate through reinforcing screw.

Further, fixed otic placodes are all installed to the both sides of bottom inboard wall, and the middle part of two adjacent fixed otic placodes is run through and is provided with set screw.

Furthermore, sealing gaskets are arranged between the bottom plate, the top plate and the fixed lug plates.

Further, the top plate forms a tubular structure having an inner diameter that is less than the inner diameter of the tubular structure formed by the bottom plate.

Furthermore, the inner wall fixedly connected with of top plate has the locating piece that corresponds with the anchor strut, the anchor strut is kept away from the one end of anchor strut and the bottom joint of locating piece, and reinforcing bolt runs through anchor strut and locating piece.

Furthermore, the top of one end of the reinforcing rod, which is positioned inside the clamping groove, abuts against the inner top wall of the clamping groove.

The invention has the beneficial effects that:

1. the method comprises the steps of embedding a forming pipe into a designed pile position, embedding the whole forming pipe into soil, then pouring concrete for forming a concrete retaining wall outside a pile casing formed by a top plate, starting to excavate the soil below the concrete casing after the concrete reaches a certain strength, gradually sinking the forming pipe downwards along with the increase of the excavation depth of a pile hole, pouring the concrete retaining wall once every one meter of the concrete retaining wall, constructing the whole manual hole-excavating pile in sequence until the whole manual hole-excavating pile is constructed, disassembling the pile casing after the pile hole excavation is finished, hanging the pile casing out of the pile hole, excavating the pile hole and grouting and reinforcing a side wall soil layer through a high-pressure grouting hole when poor soil such as sand or silt is reserved in the descending process of the forming pipe, and preventing the occurrence of quicksand and quicksand.

2. Compared with the content of common manual pile digging construction operation, the construction method has the advantages that the repeated construction procedures of erecting and dismantling the template of the pile hole concrete retaining wall are reduced, the labor cost can be reduced, and the construction cost is reduced; after the concrete retaining wall of the pile hole is poured and reaches a certain maintenance condition, the sinking of the steel retaining cylinder and the excavation construction of the pile hole can be immediately carried out, the construction is not influenced by adverse geological conditions, and the construction progress is fast; when the diameter of a pile hole (the diameter of a pile) is larger and the depth of the pile is shallower, a sinking steel pile casing and a matched machine are adopted for operation, so that the construction progress can be accelerated, and the construction cost can be reduced; construction operation is carried out in the protective cylinder, construction is not influenced by adverse geological conditions, and safety of operators is guaranteed.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the connection structure of different bottom plates according to the present invention;

FIG. 3 is a bottom view of the reinforcing plate of the present invention;

fig. 4 is an enlarged view of a in fig. 1.

In the figure: 1. a main body member; 2. a reinforcing plate; 3. a bottom plate; 4. a top plate; 5. an infusion port; 6. a perfusion tube; 7. a control valve; 8. a blade foot; 9. a card slot; 10. a reinforcing rod; 11. reinforcing the bolt; 12. reinforcing the screw; 13. fixing the ear plate; 14. a set screw; 15. a gasket; 16. and (5) positioning the blocks.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to FIGS. 1-4: a sinking tube type manual hole digging cast-in-place pile construction device in a bad foundation comprises a main body part 1 and a reinforcing plate 2, wherein the main body part 1 is tubular, the main body part 1 is composed of four arc plates, the edges of the four arc plates are connected in pairs to form a tubular structure, the arc plates are composed of a bottom plate 3 and a top plate 4, the top plate 4 and the bottom plate 3 are both arranged to be arc-shaped with a distribution angle of ninety degrees, the top of the bottom plate 3 is fixedly connected with the bottom of the top plate 4, the inner diameter of the tubular structure formed by the top plate 4 is smaller than that of the tubular structure formed by the bottom plate 3, the inner radius of the top part of a pipe fitting composed of the four top plates 4 is 200mm, the top of the top plate 4 is arc-shaped, the width of the arc at the position is 100mm, the difference between the radiuses of the top plate 4 and the bottom plate 3 is 100mm, and the thicknesses of the top plate 4, four bottom plates 3 are matched with four top plates 4 to form a step-shaped forming pipe, the length of each of the top plates 4 and the bottom plates 3 is set to be 1000mm, before the construction of the manual hole digging pile, the forming pipe is firstly embedded into the designed pile position, the whole forming pipe is embedded into the soil, then the concrete for forming the concrete retaining wall is poured outside a protective cylinder formed by the top plates 4, after the concrete reaches certain strength, the excavation of the lower side of the concrete cylinder is started, the forming pipe gradually sinks downwards along with the increase of the excavation depth of the pile hole, the concrete retaining wall is poured once after 1 m of subsidence, the whole manual hole digging pile is constructed in sequence, after the pile hole digging result, the protective cylinder is disassembled and lifted out of the pile hole, when the bad soil such as sand or silt is reserved in the descending process of the forming pipe, the pile hole is excavated while the soil layer is grouted and reinforced by high-pressure grouting holes, the emergence of prevention flowing sand and flowing soil, when meetting that the pile casing sinks slowly or the steel pile casing can't sink after concrete placement, constructor can beat the atress foot of beating the pile casing with the sledgehammer and sink the pile casing, or increase the balancing weight at the pile casing top and carry out the helping hand and sink, when adopting to add the balancing weight and carry out the helping hand and sink, accelerate the sinking speed of the pile casing, can increase the construction progress that the manual work dug the stake.

Fill mouth 5 has been seted up to the bottom of top plate 4, fill mouth 5 department and install filling pipe 6, fill and install control valve 7 on the pipe 6, the sword foot 8 has been seted up to the bottom of bottom plate 3, fill mouth 5 cooperation filling pipe 6 and control valve 7 and can conveniently fill the concrete to the outside of top plate 4, if when meeting special underground soil property condition, carry out high-pressure slip casting through filling mouth 5 to the outer wall of top plate 4.

The reinforcing plate 2 is arranged among the four top plates 4, the bottom of the reinforcing plate 2 is provided with four clamping grooves 9 respectively corresponding to the four top plates 4, a reinforcing rod 10 is hinged in the clamping grooves 9, one end of the reinforcing rod 10 far away from the reinforcing plate 2 is connected with the inner wall of each top plate 4 through a reinforcing bolt 11, one end of the reinforcing rod 10, which is positioned in the clamping groove 9, is connected with the reinforcing plate 2 through a reinforcing bolt 12, a positioning block 16 corresponding to the reinforcing rod 10 is fixedly connected with the inner wall of each top plate 4, one end of the reinforcing rod 10, which is far away from the reinforcing plate 2, is clamped with the bottom of the positioning block 16, the reinforcing bolt 11 penetrates through the reinforcing rod 10 and the positioning block 16, the top of one end of the reinforcing rod 10, which is positioned in the clamping groove 9, abuts against the inner top wall of the clamping groove 9, the reinforcing plate 2 is arranged among the four top plates 4, then the reinforcing rod, then install reinforcing bolt 11 and reinforcement screw 12 again, can fix the position of reinforcement pole 10 like this, also can consolidate the position between gusset plate 2 and the top plate 4 simultaneously for the tubular structure that four top plates 4 formed is more stable, can provide more stable support for the ground like this, avoids the too big tubular structure deformation that leads to of the pressure of soil.

As shown in fig. 2, fixed otic placodes 13 are all installed to the both sides of bottom plate 3 inner wall, and the middle part of two adjacent fixed otic placodes 13 is run through and is provided with set screw 14, all is provided with sealed pad 15 between two adjacent bottom plates 3, top plate 4 and the fixed otic placode 13, and sealed pad 15 and two sets of sealed setting of filling up 15 can make the connection between two adjacent bottom plates 3 more firm and sealed, avoid the weeping.

Compared with the content of ordinary manual pile digging construction operation, the construction process of repeatedly erecting and dismantling the template of the pile hole concrete retaining wall is reduced, the labor cost can be reduced, and the construction cost is reduced; after the concrete retaining wall of the pile hole is poured and reaches a certain maintenance condition, the sinking of the steel retaining cylinder and the excavation construction of the pile hole can be immediately carried out, the construction is not influenced by adverse geological conditions, and the construction progress is fast; when the diameter of the pile hole is larger and the depth of the pile is shallower, the sinking steel pile casing and the matched machinery are adopted for operation, so that the construction progress can be accelerated, and the construction cost can be reduced; construction operation is carried out in the protective cylinder, construction is not influenced by adverse geological conditions, and safety of operators is guaranteed.

In summary, when the invention is used, before the construction of the manual hole digging pile, the forming pipe is firstly embedded in the designed pile position, the whole forming pipe is embedded in the soil, then the concrete for forming the concrete retaining wall is poured outside the retaining cylinder formed by the top plate 4, after the concrete reaches a certain strength, the excavation of the lower part of the concrete cylinder is started, the forming pipe gradually sinks downwards along with the increase of the excavation depth of the pile hole, the concrete retaining wall is poured once after the concrete retaining wall sinks for 1 m, and the whole manual hole digging pile is constructed in sequence.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.