Pipe gallery section foundation pit supporting structure

Abstract

The utility model relates to the technical field of pipe gallery construction, and discloses a pipe gallery section foundation pit supporting structure which comprises a foundation pit body and cast-in-place piles poured on the two sides of the foundation pit body, supporting assemblies are arranged on the surfaces of the cast-in-place piles corresponding to the foundation pit body, and each supporting assembly comprises an embedded pile embedded in the side face of the foundation pit body. A pull rod is embedded in the surface of the embedded pile, and the surface of the pull rod is sleeved with a side protection plate. According to the utility model, aiming at the bottom side of the foundation pit body, the pipe gallery frame is arranged on the upper surface of the bottom protection plate through the lapping table and the bottom protection plate, the water storage cavity is reserved between the bottom protection plate and the bottom side of the foundation pit body, the water drainage hole is formed in the surface of the bottom protection plate, and the water drainage hole is formed in the bottom of the foundation pit body; rainwater can be temporarily stored through the water storage cavity, the rainwater is rapidly drained to the deep ground through the drainage hole, the influence of the rainwater on the surface of the bottom protection plate is weakened, and therefore the construction progress of laying municipal pipelines on the surface of the pipe gallery frame is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipe gallery construction technical field more particularly to a pipe gallery section foundation pit support structure. BACKGROUND

[0002] The city underground comprehensive pipe gallery bears a city's electric power, communication, gas, water supply and drainage, radio and television and many pipelines, is the city lifeline in fact, when carrying out temporary pipe gallery construction in the foundation pit, in order to improve the stability of foundation pit, need to carry out support operation on the inner wall of foundation pit.

[0003] Through the retrieval, the existing patent (announcement number: CN208039269U) discloses a three-layer pipe gallery section foundation pit support structure, which connects the steel waist beam through the pile anchor support in the use process, is pulled on the both sides of the bored pile by five anchor rods, is used as the temporary foundation pit support of comprehensive pipe gallery engineering, and the support structure is the important guarantee of construction safety, the design of this structure improves the construction speed, meets the demand of foundation pit support safety simultaneously, speeds up the anchor cable tensioning time.But, the inventor found that the prior art has the following problems in the process of realizing the utility model: the pipe gallery section foundation pit support structure just simply uses the bored pile to carry out the protection to the side wall of foundation pit, but there is a big gap between the bored piles, only uses the bored pile to carry out the blocking protection to the foundation pit with damp soil, and the side wall of foundation pit is easy to collapse, thereby causing the safety accident, on the other hand, the bottom of foundation pit is easy to appear the phenomenon of water collection under the weather of damp foundation pit and rain, increases the construction difficulty of working personnel, and the progress of pipe laying construction is affected.

[0004] In view of this, the utility model provides a pipe gallery section foundation pit support structure to solve this problem. UTILITY MODEL CONTENTS

[0005] In order to overcome the above-mentioned defects of prior art, the utility model provides a pipe gallery section foundation pit support structure to solve the problems in the above background art.

[0006] The utility model provides following technical scheme: a pipe gallery section foundation pit support structure, including foundation pit body and the pouring pile of pouring in the both sides of foundation pit body, the surface of pouring pile is provided with support subassembly corresponding foundation pit body, support subassembly includes the pre -buried stake of embedding in the side surface of foundation pit body, the surface of pre -buried stake embeds has pull rod, the surface of pull rod is equipped with side guard board, and the end of pull rod is connected with the screw nut of abutting tightly, the surface of side guard board is abutting tightly with the surface of pouring pile under the action of screw nut and pull rod, the surface of side guard board is welded with the stage of approaching the inner bottom wall of foundation pit body, the surface of stage is equipped with the bottom guard board of setting up, the upper surface of bottom guard board is fixedly installed with pipe gallery frame, the surface of pipe gallery frame is paved with municipal pipeline, and the bottom side between bottom guard board and foundation pit body is reserved with water storage cavity, the surface of bottom guard board is equipped with drain hole, and the bottom of foundation pit body is equipped with sewer hole.

[0007] Further, the surface of the stage is welded with a reinforcing rib, the other end of the reinforcing rib is fixed with the bottom end of the stage, and the stage, the reinforcing rib and the side guard board are combined into a triangular structure. By arranging the reinforcing rib, the structural strength of the stage is improved, so that the supporting effect of the stage on the bottom guard board is ensured.

[0008] Further, the upper end of the side guard board away from the center axis of the foundation pit body is welded with an anti-settling plate, the bottom end of the anti-settling plate is abutting tightly with the top of the pouring pile, and the top end of the side guard board is higher than the height of the external ground of the foundation pit body. By arranging the anti-settling plate, the position of the side guard board is assisted to be positioned, so that the side guard board is prevented from sinking and shifting, and the top end of the side guard board is higher than the top of the foundation pit body, so that the situation that the external object rolls into the inside of the foundation pit body is reduced.

[0009] Further, the bottom end of the bottom guard board is welded with a positioning pin, the surface of the stage is provided with a pin hole, and the positioning pin is clamped in the inside of the pin hole. By arranging the positioning pin and the pin hole, the stability of the installation of the bottom guard board is improved.

[0010] Further, the number of the pin holes is several, and the several pin holes are evenly arranged on the surface of the stage. By arranging the several pin holes, the difficulty of the installation of the side guard board is reduced when the bottom guard board is installed, and the installation requirements of the side guard board with different intervals are met.

[0011] Further, the inside of the sewer hole of the foundation pit body is paved with a drainage blind pipe. By paving the drainage blind pipe in the inside of the sewer hole, the self water-permeable and soil-fixing characteristics of the drainage blind pipe are utilized to realize the supporting effect of the sewer hole, so that the rainwater can be quickly infiltrated.

[0012] The technical effects and advantages of the utility model are as follows:

[0013] 1.The utility model discloses a temporary excavation's foundation pit body, through the pre-poured cast-in-place pile, the stability of soil quality is improved, then the foundation pit body is dug in the inside of two rows of cast-in-place piles, when the foundation pit body is supported, through the setting up of side guard board, and the pre-buried pile, draw bar and abutting nut are used to draw tightly and position the side guard board, the side wall of the foundation pit body can be protected from collapse by the side guard board, and the collapse of the side wall of the foundation pit due to the damp and soft soil can be avoided, and for the bottom side of the foundation pit body, a trestle and a bottom guard board are arranged, a pipe gallery frame is arranged on the upper surface of the bottom guard board, a water storage cavity is reserved between the bottom guard board and the bottom side of the foundation pit body, a drainage hole is formed on the surface of the bottom guard board, a downcomer is formed on the bottom of the foundation pit body, when water accumulates in the foundation pit body, the rainwater can be temporarily stored in the water storage cavity, and the rainwater can be quickly discharged to the deep ground through the downcomer, the influence of the rainwater on the surface of the bottom guard board is weakened, and the construction progress of the municipal pipeline laid on the surface of the pipe gallery frame is ensured.

[0014] 2.The utility model discloses a reinforcing rib is set up, can promote the structural strength of trestle, thereby ensure that the support effect of trestle to bottom guard board, set up anti -settling board, can the position of side guard board is positioned supplementary, avoid the sinking displacement of side guard board, and utilize the top of side guard board higher than the top of foundation pit body, can reduce the situation that external object rolls into the inside of foundation pit body, set up positioning pin and pin hole, can promote the stability that bottom guard board installs, the number of pin hole is several, when installing bottom guard board, can reduce the difficulty of side guard board installation, satisfy the demand of different interval side guard board installation, set up drainage blind pipe in downcomer, can utilize the water -permeable solid soil characteristics of drainage blind pipe itself, realizes the effect that downcomer supports, ensures that rainwater can be quickly infiltrated. DRAWINGS

[0015] Figure 1 It is the cross section structure schematic diagram of the utility model;

[0016] Figure 2 It is Figure 1 The enlarged structure schematic diagram of A in the middle;

[0017] Figure 3 It is the three-dimensional structure schematic diagram of the utility model.

[0018] The figure mark is: 1, foundation pit body;2, cast-in-place pile;3, pre-buried pile;4, draw bar;5, side guard board;6, abutting nut;7, trestle;8, bottom guard board;9, pipe gallery frame;10, municipal pipeline;11, water storage cavity;12, drainage hole;13, downcomer;14, reinforcing rib;15, anti-settling board;16, positioning pin;17, pin hole;18, drainage blind pipe. DETAILED DESCRIPTION

[0019] The technical scheme in the utility model will be described clearly and completely in connection with the drawings in the utility model, and besides, the forms of each structure recorded in the following implementation manners are only examples, and the pipe gallery section foundation pit supporting structure involved in the utility model is not limited to each structure recorded in the following implementation manners, and all other implementation manners obtained by the ordinary skilled in the art without creative labor belong to the range protected by the utility model.

[0020] Referring to Figures 1 to 3 The utility model provides a pipe gallery section foundation pit supporting structure, including foundation pit body 1 and the pouring pile 2 of pouring in the both sides of foundation pit body 1, aiming at the temporarily excavated foundation pit body 1, the stability of soil is improved by the pouring pile 2 of pre-pouring, and then the foundation pit body 1 is excavated in the inside of two rows of pouring piles 2.

[0021] The surface of pouring pile 2 is provided with supporting assembly corresponding to foundation pit body 1, and the supporting assembly includes pre-buried pile 3 embedded in the side of foundation pit body 1, the surface of pre-buried pile 3 is embedded with pull rod 4, the surface of pull rod 4 is provided with side guard plate 5, and the end of pull rod 4 is threadedly connected with abutting nut 6, the surface of side guard plate 5 is abutted with the surface of pouring pile 2 under the action of abutting nut 6 and pull rod 4, the surface of side guard plate 5 close to the inner bottom wall of foundation pit body 1 is welded with stage 7, the surface of stage 7 is provided with bottom guard plate 8, the upper surface of bottom guard plate 8 is fixedly installed with pipe gallery frame 9, the surface of pipe gallery frame 9 is paved with municipal pipeline 10, the bottom side between bottom guard plate 8 and foundation pit body 1 is reserved with water storage cavity 11, the surface of bottom guard plate 8 is provided with drain hole 12, and the bottom of foundation pit body 1 is provided with sewer hole 13.

[0022] It is worth mentioning that by setting supporting assembly, when supporting foundation pit body 1, by setting side guard plate 5 and positioning side guard plate 5 by pre-buried pile 3, pull rod 4 and abutting nut 6, the side wall of foundation pit body 1 can be protected from collapse by side guard plate 5, to avoid the side wall of foundation pit body 1 from collapsing due to wet and soft soil.

[0023] Further, for the bottom side of foundation pit body 1, by setting stage 7 and bottom guard plate 8, setting pipe gallery frame 9 on the upper surface of bottom guard plate 8, and then paving municipal pipeline 10 inside pipe gallery frame 9, the pipeline laying construction is facilitated, and when laying municipal pipeline 10, by reserving water storage cavity 11 between bottom guard plate 8 and the bottom side of foundation pit body 1, opening drain hole 12 on the surface of bottom guard plate 8, and opening sewer hole 13 on the bottom of foundation pit body 1, when water accumulates in the inside of foundation pit body 1, the rainwater can be temporarily stored by water storage cavity 11, and the rainwater can be quickly discharged to the deep ground through sewer hole 13, to weaken the influence of rainwater on the surface of bottom guard plate 8, thereby ensuring the construction progress of laying municipal pipeline 10 on the surface of pipe gallery frame 9.

[0024] The surface of the bench 7 is welded with a reinforcing rib 14, the other end of the reinforcing rib 14 is fixed with the bottom end of the bench 7, the bench 7, the reinforcing rib 14 and the side guard plate 5 are combined into a triangular structure.

[0025] Further, by setting the reinforcing rib 14, the structural strength of the bench 7 can be improved, thereby ensuring the supporting effect of the bench 7 on the bottom guard plate 8.

[0026] The upper end of the side guard plate 5 away from the center axis of the foundation pit body 1 is welded with a anti-settlement plate 15, the bottom end of the anti-settlement plate 15 is tightly abutted with the top of the cast-in-place pile 2, and the top end of the side guard plate 5 is higher than the height of the external ground of the foundation pit body 1.

[0027] It is worth noting that by setting the anti-settlement plate 15, the position of the side guard plate 5 can be assisted to be positioned, so that the side guard plate 5 is prevented from sinking and shifting, and by using the top end of the side guard plate 5 being higher than the top of the foundation pit body 1, the situation that external objects roll into the inside of the foundation pit body 1 can be reduced.

[0028] The bottom end of the bottom guard plate 8 is welded with a positioning pin 16, the surface of the bench 7 is provided with a pin hole 17, and the positioning pin 16 is clamped in the inside of the pin hole 17.

[0029] Further, by setting the positioning pin 16 and the pin hole 17, by clamping the positioning pin 16 into the inside of the pin hole 17, the stability of the installation of the bottom guard plate 8 can be improved.

[0030] The number of the pin holes 17 is several, and the several pin holes 17 are uniformly provided on the surface of the bench 7.

[0031] Further, by the number of the pin holes 17 being several, when the bottom guard plate 8 is installed, the difficulty of the installation of the side guard plate 5 can be reduced, and the installation requirements of the side guard plate 5 with different intervals can be met.

[0032] The drainage blind pipe 18 is laid in the inside of the downspout 13.

[0033] It is worth noting that by laying the drainage blind pipe 18 in the inside of the downspout 13, the supporting effect of the downspout 13 can be achieved by using the water-permeable and soil-fixing characteristics of the drainage blind pipe 18 itself, the downspout 13 is prevented from collapsing and blocking, and the rainwater can be quickly infiltrated.

[0034] Finally, it should be noted that: the utility model discloses the embodiment in the drawing, only relates to the structure involved in the embodiment of the present disclosure, other structures can refer to the usual design, in the case of no conflict, the same embodiment and different embodiments of the utility model can be combined with each other.

Claims

1. A pipe gallery section foundation pit support structure, comprising a foundation pit body (1) and cast-in-place piles (2) cast on both sides of the foundation pit body (1), characterized in that: The surface of the pile (2) is provided with a support assembly corresponding to the foundation pit body (1), the support assembly comprises a pre-buried pile (3) embedded in the side of the foundation pit body (1), the surface of the pre-buried pile (3) is embedded with a pull rod (4), the surface of the pull rod (4) is sleeved with a side guard plate (5), and the end of the pull rod (4) is threadedly connected with a abutting nut (6), the side guard plate (5) is abutted with the surface of the pile (2) under the action of the abutting nut (6) and the pull rod (4), the surface of the side guard plate (5) close to the inner bottom wall of the foundation pit body (1) is welded with a platform (7), the surface of the platform (7) is provided with a bottom guard plate (8), the upper surface of the bottom guard plate (8) is fixedly installed with a pipe gallery frame (9), the surface of the pipe gallery frame (9) is paved with a municipal pipeline (10), a water storage cavity (11) is reserved between the bottom guard plate (8) and the bottom side of the foundation pit body (1), the surface of the bottom guard plate (8) is provided with a drainage hole (12), and the bottom of the foundation pit body (1) is provided with a sewer hole (13).

2. A pipe rack segment foundation support structure according to claim 1, wherein: The surface of the platform (7) is welded with a reinforcing rib (14), the other end of the reinforcing rib (14) is fixed with the bottom end of the platform (7), and the platform (7), the reinforcing rib (14) and the side guard plate (5) are combined into a triangular structure.

3. A pipe rack segment foundation support structure according to claim 1, wherein: The upper end of the side guard plate (5) away from the center axis of the foundation pit body (1) is welded with an anti-settling plate (15), the bottom end of the anti-settling plate (15) is abutted with the top of the pile (2), and the top end of the side guard plate (5) is higher than the height of the ground outside the foundation pit body (1).

4. The pipe rack segment foundation support structure of claim 1, wherein: The bottom end of the bottom guard plate (8) is welded with a positioning pin (16), the surface of the platform (7) is provided with a pin hole (17), and the positioning pin (16) is clamped in the pin hole (17).

5. A pipe rack segment foundation support structure according to claim 4, wherein: The number of the pin holes (17) is several, and the several pin holes (17) are evenly arranged on the surface of the platform (7).

6. A pipe rack segment foundation support structure according to claim 1, wherein: The drainage blind pipe (18) is arranged in the sewer hole (13) of the foundation pit body (1).

Images