Prefabricated building engineering foundation pit supporting structure

Abstract

The utility model relates to the technical field of foundation pit supporting, in particular to a prefabricated building engineering foundation pit supporting structure. The foundation pit supporting structure has the advantages that the bottom face of a foundation pit is pressed through the bottom plate, then supporting force is provided through the vertical supporting frame, then the soil retaining plate body is inserted into the vertical supporting frame, the foundation pit supporting structure can be attached to the side wall of the foundation pit, the contact area is increased, and supporting pressure is dispersed; meanwhile, moisture in the soil can permeate through the soil retaining plate body and enter the space between the vertical supporting frame and the soil retaining plate body through the water permeable holes in the surface of the soil retaining plate body, so that the moisture in the soil layer can be quickly released and discharged, the pressure of the soil around the foundation pit is relieved, accumulated water can be gathered and discharged through the drainage pipe body, and the drainage effect is improved; the inserting columns of the threshold pulling pieces are inserted among the supporting partition plates, then the spine hook bodies of the threshold pulling pieces are used for hooking the outer side of a soil layer on the top of a foundation pit, in this way, certain pulling force can be provided for the top by means of the soil layer, and the overall supporting strength of the soil retaining plate body is improved.

Description

Technical Field

[0001] This utility model relates to the field of foundation pit support technology, and in particular to a prefabricated foundation pit support structure for building engineering. Background Technology

[0002] Foundation pit support refers to the measures taken to support, reinforce, and protect the sidewalls and surrounding environment of a foundation pit to ensure the safety of underground structure construction and the surrounding environment. In existing technologies, foundation pit support typically employs methods such as pile wall support, diaphragm wall support, and cement retaining wall support.

[0003] Currently, some foundation pit construction projects use prefabricated foundation pit support structures to improve construction efficiency and shorten the construction period. These structures can be quickly erected using prefabricated modules, eliminating the need for on-site construction and thus improving efficiency. However, current prefabricated foundation pit support structures for building engineering still have the following shortcomings in practical use:

[0004] Most prefabricated building foundation pit support structures are formed by casting a base slab and vertical baffles together. A reinforcing structure is also set between the base slab and the vertical baffles. However, the baffles of this type of prefabricated building foundation pit support structure are closed structures, which is not conducive to the drainage of water from the soil around the foundation pit. On rainy days, the soil moisture content increases and the lateral pressure also increases. If the water is not drained in time, it is easy to cause great pressure and collapse. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a prefabricated foundation pit support structure for building engineering, which effectively solves the deficiencies of the prior art.

[0006] To achieve the above objectives, one embodiment of this utility model provides a prefabricated foundation pit support structure for building engineering, including a base prefabricated module, a permeable prefabricated module, and a tie-down threshold component. The base prefabricated module, the permeable prefabricated module, and the tie-down threshold component are all integrally cast reinforced concrete. The base prefabricated module includes a base plate, with a vertical support frame fixedly connected to one edge of the top side of the base plate. Guide slots are reserved at the center of both sides of the inner wall of the vertical support frame. Fixing teeth are fixedly connected to both sides of one edge of the bottom surface of the base plate. The permeable prefabricated module includes a retaining plate body, with insertable protrusions fixedly connected to both sides of the retaining plate body. The retaining plate body is connected to two guides via two insertable protrusions. The retaining plate is fixed by a slot insertion. It is located inside the vertical support frame. Several support partitions are fixedly connected to one side of the retaining plate. The support partitions are supported between the inner wall of the vertical support frame and the retaining plate. The side of the support partitions away from the retaining plate is in contact with the side of the inner wall of the vertical support frame. The length of the support partitions is less than the height of the retaining plate. Several water-permeable holes are opened on the surface of the retaining plate. The water-permeable holes penetrate the retaining plate and are located between the support partitions. The outer surface of the retaining plate is coplanar with the outer surface of the vertical support frame. One end of the threshold puller is inserted between the support partitions, and the other end of the threshold puller is hook-shaped and inserted into the soil.

[0007] Preferably, in any of the above embodiments, the prefabricated base module further includes several triangular reinforcing supports, the two sides of which are fixedly connected to the top surface of the base plate and one side of the vertical support frame, respectively, and the distribution width of the several triangular reinforcing supports is adapted to the width of the base plate and the vertical support frame.

[0008] The technical effect achieved by adopting the above solution is that the pressure borne by the vertical support frame can be transmitted and distributed to the bottom plate through the triangular reinforced support body, and then released to the ground of the foundation pit, thereby improving the support effect.

[0009] Preferably, in any of the above embodiments, a drain pipe is fixedly connected to the center of the bottom of one side of the vertical support frame, and the drain pipe is connected to the interior of the vertical support frame.

[0010] The technical effect achieved by adopting the above solution is that the drainage pipe body can be easily connected to the pipeline so as to collect and discharge the seeping water and prevent it from accumulating inside the foundation pit.

[0011] Preferably, in any of the above schemes, the top surface of the retaining plate is coplanar with the top surface of the vertical support frame, and the distance between the bottom of the several support partitions and the bottom surface of the inner wall of the vertical support frame is greater than the diameter of the drainage pipe.

[0012] The technical effect achieved by adopting the above solution is that the water flow at the bottom can be gathered into the drain pipe, thereby improving the drainage effect.

[0013] Preferably, in any of the above embodiments, the threshold member includes a connecting plate, one end of the bottom surface of the connecting plate is fixedly connected to a plug post, and the other end of the bottom surface of the connecting plate is fixedly connected to a spiked hook, and the plug post can be inserted between several support partitions.

[0014] The technical effect achieved by adopting the above scheme is that by inserting the plug of the threshold member between several support partitions, and then hooking the outside of the top soil layer of the foundation pit with the spike hook of the threshold member, the soil layer itself can provide a certain tension to the top, thereby improving the overall support strength of the retaining plate.

[0015] This utility model has the following advantages:

[0016] 1. This prefabricated building foundation pit support structure uses a base plate to press the bottom of the foundation pit, then provides support through a vertical support frame, and then inserts retaining plates into the vertical support frame to fit the sidewall of the foundation pit, increasing the contact area and dispersing the support pressure. At the same time, several permeable holes on the surface of the retaining plates allow water in the soil to permeate through the retaining plates and enter the space between the vertical support frame and the retaining plates, so that the water in the soil layer can be quickly released and discharged, reducing the pressure on the soil around the foundation pit. Meanwhile, the drainage pipes can collect and discharge accumulated water, improving the drainage effect.

[0017] 2. The prefabricated building foundation pit support structure uses the insertion columns of the tie-threshold member to insert between several support partitions, and then uses the spiked hooks of the tie-threshold member to hook the outer side of the top soil layer of the foundation pit. In this way, the soil layer itself can provide a certain tension to the top, thereby improving the overall support strength of the retaining plate. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a structural schematic diagram of the prefabricated base module of this utility model;

[0020] Figure 3 This is a schematic diagram of the vertical cross-section structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the permeable prefabricated module of this utility model.

[0022] In the diagram: 1-base prefabricated module, 11-base plate, 12-vertical support frame, 13-fixing tooth, 14-triangular reinforcing support body, 15-drainage pipe body, 16-guide slot, 2-permeable prefabricated module, 21-retaining plate body, 22-support partition, 23-insertion protrusion, 24-permeable hole, 3-stressing threshold piece, 31-connecting plate, 32-spiked hook body, 33-insertion column. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the following description.

[0024] like Figures 1 to 4 As shown, a prefabricated foundation pit support structure for building engineering includes a base prefabricated module 1, a permeable prefabricated module 2, and a tie-down threshold component 3. The base prefabricated module 1, the permeable prefabricated module 2, and the tie-down threshold component 3 are all integrally cast reinforced concrete. The base prefabricated module 1 includes a base plate 11, with a vertical support frame 12 fixedly connected to one edge of the top side of the base plate 11. Guide slots 16 are reserved at the center of both sides of the inner wall of the vertical support frame 12. Fixing teeth 13 are fixedly connected to both sides of one edge of the bottom surface of the base plate 11. The permeable prefabricated module 2 includes a retaining plate body 21, with insert protrusions 23 fixedly connected to both sides of the retaining plate body 21. The retaining plate body 21 is fixedly connected to two guide slots 16 via two insert protrusions 23. 1. Inside the vertical support frame 12, a number of support partitions 22 are fixedly connected to one side of the retaining plate body 21. The support partitions 22 are all supported between the inner wall of the vertical support frame 12 and the retaining plate body 21. The side of the support partitions 22 away from the retaining plate body 21 is in contact with one side of the inner wall of the vertical support frame 12. The length of the support partitions 22 is less than the height of the retaining plate body 21. A number of water-permeable holes 24 are opened on the surface of the retaining plate body 21. The water-permeable holes 24 all penetrate the retaining plate body 21 and are located between the support partitions 22. The outer surface of the retaining plate body 21 is coplanar with the outer surface of the vertical support frame 12. One end of the threshold puller 3 is inserted between the support partitions 22, and the other end of the threshold puller 3 is hook-shaped and inserted into the soil.

[0025] As an optional technical solution of this utility model, the base prefabrication module 1 also includes several triangular reinforcing supports 14. The two sides of the several triangular reinforcing supports 14 are respectively fixedly connected to the top surface of the base plate 11 and one side of the vertical support frame 12. The distribution width of the several triangular reinforcing supports 14 is adapted to the width of the base plate 11 and the vertical support frame 12. The pressure borne by the vertical support frame 12 can be transmitted and distributed to the base plate 11 through the triangular reinforcing supports 14, and then released to the ground of the foundation pit, thereby improving the support effect.

[0026] As an optional technical solution of this utility model, a drainage pipe 15 is fixedly connected to the center of the bottom of one side of the vertical support frame 12. The drainage pipe 15 is connected to the interior of the vertical support frame 12. The drainage pipe 15 facilitates the connection of pipes so as to collect and discharge the seeping water and prevent it from accumulating inside the foundation pit.

[0027] As an optional technical solution of this utility model, the top surface of the retaining plate 21 is coplanar with the top surface of the vertical support frame 12, and the distance between the bottom of the several support partitions 22 and the bottom surface of the inner wall of the vertical support frame 12 is greater than the diameter of the drainage pipe 15, so that the water flow at the bottom can converge into the drainage pipe 15, thereby improving the drainage effect.

[0028] As an optional technical solution of this utility model, the retaining threshold member 3 includes a connecting plate 31. One end of the bottom surface of the connecting plate 31 is fixedly connected to a plug post 33, and the other end of the bottom surface of the connecting plate 31 is fixedly connected to a spike hook body 32. The plug post 33 can be inserted between several support partitions 22. By inserting the plug post 33 of the retaining threshold member 3 between several support partitions 22, and then hooking the outside of the top soil layer of the foundation pit with the spike hook body 32 of the retaining threshold member 3, a certain pulling force can be provided to the top by the soil layer itself, thereby improving the overall support strength of the retaining plate body 21.

[0029] The following steps are required when using this prefabricated foundation pit support structure:

[0030] 1) The bottom surface of the foundation pit is pressed by the base plate 11, and then the vertical support frame 12 provides support.

[0031] 2) Then, by inserting the retaining plate 21 into the vertical support frame 12, it can fit against the side wall of the foundation pit, increase the contact area, and disperse the support pressure;

[0032] 3) Through several permeable holes 24 on the surface of the retaining plate 21, water in the soil can permeate through the retaining plate 21 and enter the space between the vertical support frame 12 and the retaining plate 21, so that the water in the soil layer can be released and discharged quickly, reducing the pressure on the soil around the foundation pit. At the same time, the accumulated water can be collected and discharged through the drainage pipe 15.

[0033] In summary, by pressing the bottom of the foundation pit with the base plate 11, and then providing support through the vertical support frame 12, the retaining plate 21 is inserted into the vertical support frame 12, which can fit against the side wall of the foundation pit, increase the contact area, and disperse the support pressure. At the same time, through several permeable holes 24 on the surface of the retaining plate 21, water in the soil can permeate through the retaining plate 21 and enter between the vertical support frame 12 and the retaining plate 21, so that the water in the soil layer can be quickly released and discharged, reducing the pressure on the soil around the foundation pit. Meanwhile, the drainage pipe 15 can collect and discharge the accumulated water, improving the drainage effect. The insertion post 33 of the tie threshold member 3 is inserted between several support partitions 22, and then the spike hook 32 of the tie threshold member 3 hooks the outside of the top soil layer of the foundation pit. In this way, the soil layer itself can provide a certain tension to the top, improving the overall support strength of the retaining plate 21.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A prefabricated foundation pit support structure for building engineering, characterized in that: The system includes a precast base module (1), a permeable precast module (2), and a threshold puller (3). All components are integrally cast reinforced concrete. The precast base module (1) includes a base plate (11). A vertical support frame (12) is fixedly connected to the edge of one side of the top of the base plate (11). Guide slots (16) are reserved at the center of both sides of the inner wall of the vertical support frame (12). Fixing teeth (13) are fixedly connected to both sides of one side of the bottom surface of the base plate (11). The permeable precast module (2) includes a retaining plate (21). Insertion protrusions (23) are fixedly connected to both sides of the retaining plate (21). The retaining plate (21) is fixedly connected to two guide slots (16) via two insertion protrusions (23). The retaining plate (21) is positioned within the vertical support frame. Inside the retaining plate (21), a number of supporting partitions (22) are fixedly connected to one side of the retaining plate body (21). The supporting partitions (22) are all supported between the inner wall of the vertical support frame (12) and the retaining plate body (21). The side of the supporting partitions (22) away from the retaining plate body (21) is in contact with one side of the inner wall of the vertical support frame (12). The length of the supporting partitions (22) is less than the height of the retaining plate body (21). A number of water-permeable holes (24) are opened on the surface of the retaining plate body (21). The water-permeable holes (24) penetrate the retaining plate body (21) and are located between the supporting partitions (22). The outer surface of the retaining plate body (21) is coplanar with the outer surface of the vertical support frame (12). One end of the threshold puller (3) is inserted between the supporting partitions (22), and the other end of the threshold puller (3) is hook-shaped and inserted into the soil.

2. The prefabricated foundation pit support structure according to claim 1, characterized in that: The base prefabrication module (1) also includes several triangular reinforcing supports (14), and the two sides of the several triangular reinforcing supports (14) are respectively fixedly connected to the top surface of the base plate (11) and one side of the vertical support frame (12). The distribution width of the several triangular reinforcing supports (14) is adapted to the width of the base plate (11) and the vertical support frame (12).

3. The prefabricated foundation pit support structure according to claim 2, characterized in that: A drain pipe (15) is fixedly connected to the center of the bottom side of one side of the vertical support frame (12), and the drain pipe (15) is connected to the interior of the vertical support frame (12).

4. The prefabricated building foundation pit support structure according to claim 3, characterized in that: The top surface of the retaining plate (21) is coplanar with the top surface of the vertical support frame (12), and the distance between the bottom of several support partitions (22) and the bottom surface of the inner wall of the vertical support frame (12) is greater than the diameter of the drainage pipe (15).

5. A prefabricated building foundation pit support structure according to claim 4, characterized in that: The threshold puller (3) includes a connecting plate (31), one end of the bottom surface of the connecting plate (31) is fixedly connected to a plug post (33), and the other end of the bottom surface of the connecting plate (31) is fixedly connected to a spike hook body (32). The plug post (33) can be inserted between several support partitions (22).

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