Underground structure deep foundation pit reinforcing protection structure

Abstract

The utility model discloses an underground structure deep foundation pit strengthening protection structure, which relates to the technical field of deep foundation pit strengthening, and comprises a foundation pit body, baffle structures are arranged on the four sides of the inner wall of the foundation pit body in a fitting manner, and the baffle structures support the inner wall of the foundation pit body; internal corner structures are arranged at the joints of the baffle structures, and the internal corner structures are used for protecting internal corners of the foundation pit body; a supporting structure is arranged in the middle of the foundation pit body and supports the baffle structure. The internal corner structure comprises internal corner blocks, the internal corner blocks are placed at the four internal corners of the foundation pit body, two connecting grooves are formed in each internal corner block, connecting plates are fixedly connected to the outer sides of the two connecting grooves, and the internal corners in the foundation pit body can be supported and protected through the arranged internal corner structure; and the collapse phenomenon caused by water seepage at the internal corner in the foundation pit body can be avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to deep foundation pit reinforcing technical field, specifically underground structure deep foundation pit reinforcing protection structure. BACKGROUND

[0002] Deep foundation pit refers to the excavation depth more than 5 meters (including 5 meters), or depth although not more than 5 meters, but the geological conditions and surrounding environment and underground pipeline particularly complicated engineering. Foundation pit engineering mainly includes foundation pit support system design and construction and earthwork excavation, and is a very strong system engineering. It requires geotechnical engineering and structural engineering technical personnel to cooperate closely.

[0003] In the prior art, a deep foundation pit protection structure (authorized publication number CN215441932U) is disclosed in Chinese patent. The patent technology can reduce the collapse of the inner side wall of the foundation pit body through the cooperation of the bottom plate, the supporting rod and the supporting plate.

[0004] However, the above-mentioned patent does not set up protection for the foundation pit reentrant corner (corner), which refers to the connection of the foundation pit wall, which is usually the turning point of the foundation pit wall and the penetration point of soil and water. When water penetrates the reentrant corner, it is easy to cause the collapse of the foundation pit wall. Therefore, an underground structure deep foundation pit reinforcing protection structure is provided to solve the problems raised in the above background technology. SUMMARY

[0005] The utility model aims at providing an underground structure deep foundation pit reinforcing protection structure to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] An underground structure deep foundation pit reinforcing protection structure, comprising a foundation pit body, the inner wall of the foundation pit body is provided with a baffle structure on four sides, the baffle structure supports the inner wall of the foundation pit body; a reentrant corner structure is arranged at the connection between the baffle structures, the reentrant corner structure protects the reentrant corner of the foundation pit body; a supporting structure is arranged in the middle of the foundation pit body, and the supporting structure supports the baffle structure.

[0008] As a further scheme of the utility model: wherein, the reentrant corner structure comprises a reentrant corner block, the reentrant corner block is placed at the four reentrant corners of the foundation pit body, two connecting grooves are formed in the reentrant corner block, and connecting plates are fixedly connected outside the two connecting grooves.

[0009] As a further scheme of the utility model: wherein, the baffle structure includes a plurality of main baffle, the main baffle is attached with the four faces of the foundation pit body, the both sides of main baffle are slidably connected with extension plate, one end of extension plate is fixedly connected with external connection plate, external connection plate is inserted in the inside of connecting groove, and with connecting plate bolt connection.

[0010] As a further scheme of the utility model: wherein, the bottom side of the internal corner block is fixedly connected with the plug-in rod, and the plug-in rod is inserted into the ground inside the foundation pit body.

[0011] As a further scheme of the utility model: wherein, the support structure includes fixed tube, the bottom side of fixed tube is fixedly connected with bottom plate, the inside of fixed tube is rotatably connected with spiral rod, the four sides of fixed tube are fixedly connected with rectangular tube, the inside of rectangular tube is rotatably connected with first spiral tube, the first spiral tube and the spiral rod are engaged with bevel gear, and the inside of first spiral tube is threadedly connected with second spiral tube.

[0012] As a further scheme of the utility model: wherein, the second spiral tube penetrates the rectangular tube, the connection of second spiral tube and rectangular tube is provided with rectangular block, the inside of second spiral tube is threadedly connected with threaded support rod, and one end of threaded support rod is fixedly connected with support plate.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] The internal corner structure can support and protect the internal corner of the foundation pit body, so that the collapse of the internal corner of the foundation pit body due to water seepage can be avoided. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is the overall structure schematic diagram in the utility model;

[0016] Fig. 2 It is the support structure schematic diagram in the utility model;

[0017] Fig. 3 It is the internal corner structure schematic diagram in the utility model;

[0018] Fig. 4 It is the fixed tube structure inside schematic diagram in the utility model;

[0019] Fig. 5 It is the rectangular tube structure cross-sectional schematic diagram in the utility model.

[0020] The corresponding relationship between the annotations of each figure in the drawing and the component names is as follows:

[0021] 1, foundation pit body; 2, baffle structure; 201, main baffle; 202, extension plate; 203, external plate; 3, internal corner structure; 301, connecting plate; 302, connecting groove; 303, plug-in rod; 304, internal corner block; 4, support structure; 401, fixed tube; 402, rectangular tube; 403, spiral rod; 404, bottom plate; 405, threaded support rod; 406, support plate; 407, first spiral tube; 408, second spiral tube; 409, bevel gear. DETAILED DESCRIPTION

[0022] Please refer to Figs. 1-5 : a deep foundation pit reinforcing and protecting structure of underground structure, comprising a foundation pit body 1, the inner wall of the foundation pit body 1 is provided with a baffle structure 2 on four sides, the baffle structure 2 supports the inner wall of the foundation pit body 1; the connecting part between the baffle structure 2 is provided with an internal corner structure 3, the internal corner structure 3 protects the internal corner of the foundation pit body 1; the middle part of the foundation pit body 1 is provided with a support structure 4, the support structure 4 supports the baffle structure 2.

[0023] Wherein, the internal corner structure 3 can support and protect the internal corner of the foundation pit body 1, and can avoid the collapse of the internal corner of the foundation pit body 1 due to water seepage.

[0024] Further, the baffle structure 2 supports the inner wall of the foundation pit body 1, preventing the inner wall of the foundation pit body 1 from collapsing.

[0025] Secondly, the support structure 4 can support and protect the four inner walls of the foundation pit body 1, avoiding the position deviation of the baffle structure 2 and the internal corner structure 3 attached to the inner wall of the foundation pit body 1.

[0026] Preferably, the internal corner structure 3 comprises an internal corner block 304, the internal corner block 304 is placed at the four internal corners of the foundation pit body 1, two connecting grooves 302 are formed in the internal corner block 304, and the connecting plates 301 are fixedly connected to the outer sides of the two connecting grooves 302.

[0027] Wherein, the internal corner block 304 is placed at the four internal corners during use, so that the internal corner block 304 is attached to the four internal corners of the foundation pit body 1, supporting and protecting the internal corners.

[0028] Preferably, the baffle structure 2 comprises a plurality of main baffles 201, the main baffles 201 are attached to the four faces of the foundation pit body 1, the extension plates 202 are slidably connected to the two sides of the main baffles 201, the external plates 203 are fixedly connected to one end of the extension plates 202, the external plates 203 are inserted into the connecting grooves 302, and the connecting plates 301 are bolted to the external plates 203, the plug-in rods 303 are fixedly connected to the bottom sides of the internal corner blocks 304, and the plug-in rods 303 are inserted into the ground of the foundation pit body 1.

[0029] Wherein, according to the side wall area of the foundation pit, the distance between the main baffle 201 and the outer connecting plate 203 is adjusted, so that the outer connecting plate 203 on both sides of the main baffle 201 can be inserted into the connecting groove 302, and then the outer connecting plate 203 is bolted with the connecting plate 301, so that the main baffle 201 and the internal corner block 304 form a main body, which can simultaneously protect and support the inner wall and the internal corner of the foundation pit body 1.

[0030] Preferably, the support structure 4 comprises a fixed pipe 401, the bottom side of the fixed pipe 401 is fixedly connected with a bottom plate 404, the inside of the fixed pipe 401 is rotatably connected with a screw rod 403, the four sides of the fixed pipe 401 are fixedly connected with a rectangular pipe 402, the inside of the rectangular pipe 402 is rotatably connected with a first spiral pipe 407, the first spiral pipe 407 and the screw rod 403 are meshingly provided with a bevel gear 409, and the inside of the first spiral pipe 407 is threadedly connected with a second spiral pipe 408.

[0031] When the fixed pipe 401 is installed at the middle position of the inner wall of the foundation pit body 1, the screw rod 403 can be rotated to drive the first spiral pipe 407 on the four sides of the fixed pipe 401 to rotate, and the second spiral pipe 408 can move horizontally when the first spiral pipe 407 rotates, so that the second spiral pipe 408 can be close to the main baffle 201, thereby supporting the main baffle 201 through the second spiral pipe 408.

[0032] Further, the second spiral pipe 408 on each side of the fixed pipe 401 is provided with at least three, which can make the force of the main baffle 201 more balanced, and can share the pressure, so as to better support the main baffle 201.

[0033] Secondly, the fixed pipe 401 is located at the middle of the inner wall of the foundation pit body 1, and can be simultaneously subjected to pressure from the four sides of the foundation pit body 1 through the second spiral pipe 408, so that the fixed pipe 401 is balanced and does not appear to be skewed.

[0034] Preferably, the second spiral pipe 408 penetrates the rectangular pipe 402, a rectangular block is arranged at the connection between the second spiral pipe 408 and the rectangular pipe 402, the inside of the second spiral pipe 408 is threadedly connected with a threaded support rod 405, and one end of the threaded support rod 405 is fixedly connected with a support plate 406.

[0035] The rectangular block arranged at the connection between the second spiral pipe 408 and the rectangular pipe 402 can limit the angle of the second spiral pipe 408, so that the second spiral pipe 408 does not rotate with the first spiral pipe 407 when the first spiral pipe 407 rotates, but can move horizontally.

[0036] Further, the threaded support rod 405 is arranged to take into account that the foundation pit body 1 can not be a cube structure, but also can be a cuboid structure, so that when the screw rod 403 rotates, the phenomenon that one side of the support plate 406 contacts the inner wall of the foundation pit body 1, while the other side does not contact the inner wall of the foundation pit body 1 occurs; therefore, the threaded support rod 405 can lengthen or shorten the length of the second spiral pipe 408 on one side, so that the second spiral pipe 408 can contact the main baffle 201 through the threaded support rod 405.

[0037] Working principle: when in use, the female corner block 304 is placed at the four female corners, so that the female corner block 304 is attached to the four female corners of the foundation pit body 1, supporting and protecting the female corners, then the distance between the main baffle 201 and the outer connecting plate 203 is adjusted according to the area of the side wall of the foundation pit, so that the outer connecting plate 203 on both sides of the main baffle 201 can be inserted into the connecting groove 302, then the outer connecting plate 203 is bolted with the connecting plate 301, so that the main baffle 201 and the female corner block 304 form a main body, which can simultaneously protect and support the inner wall and the female corners of the foundation pit body 1, then when the fixed pipe 401 is installed at the middle position of the inner wall of the foundation pit body 1, the screw rod 403 can be rotated, which can drive the first spiral pipe 407 on four sides of the fixed pipe 401 to rotate, the rotation of the first spiral pipe 407 can make the second spiral pipe 408 move horizontally, and then the second spiral pipe 408 can be close to the main baffle 201, so that the second spiral pipe 408 can support the main baffle 201.

Claims

1. A reinforced protection structure for deep foundation pits of underground structures, comprising a foundation pit body (1), characterized in that, The inner wall of the foundation pit body (1) is provided with a baffle structure (2) on four sides, the baffle structure (2) supports the inner wall of the foundation pit body (1); the connecting part between the baffle structure (2) is provided with an internal corner structure (3), the internal corner structure (3) protects the internal corner of the foundation pit body (1); the middle part of the foundation pit body (1) is provided with a supporting structure (4), the supporting structure (4) supports the baffle structure (2).

2. The reinforced protective structure for deep foundation pit of underground structure according to claim 1, characterized in that, The internal corner structure (3) comprises an internal corner block (304), which is placed at the four internal corners of the foundation pit body (1), and two connecting grooves (302) are formed in the internal corner block (304), and the outer sides of the two connecting grooves (302) are fixedly connected with connecting plates (301).

3. The reinforced protective structure for deep foundation pit of underground structure according to claim 2, characterized in that, The baffle structure (2) comprises a plurality of main baffles (201), the main baffles (201) are attached to the four faces of the foundation pit body (1), the two sides of the main baffle (201) are slidably connected with extension plates (202), one end of the extension plate (202) is fixedly connected with an external connecting plate (203), the external connecting plate (203) is inserted into the connecting groove (302), and the external connecting plate (203) is bolted with the connecting plate (301).

4. The reinforced protective structure for deep foundation pit of underground structure according to claim 2, characterized in that, The bottom side of the internal corner block (304) is fixedly connected with an insertion rod (303), and the insertion rod (303) is inserted into the ground of the foundation pit body (1).

5. The reinforced protective structure for deep foundation pit of underground structure according to claim 1, characterized in that, The supporting structure (4) comprises a fixed tube (401), the bottom side of the fixed tube (401) is fixedly connected with a bottom plate (404), the inside of the fixed tube (401) is rotatably connected with a spiral rod (403), the four sides of the fixed tube (401) are fixedly connected with a rectangular tube (402), the inside of the rectangular tube (402) is rotatably connected with a first spiral tube (407), the first spiral tube (407) and the spiral rod (403) are engaged with a bevel gear (409), and the inside of the first spiral tube (407) is threadedly connected with a second spiral tube (408).

6. A reinforced structure for deep foundation pit of underground structure according to claim 5, wherein, The second spiral tube (408) penetrates the rectangular tube (402), the connecting part between the second spiral tube (408) and the rectangular tube (402) is provided with a rectangular block, the inside of the second spiral tube (408) is threadedly connected with a threaded support rod (405), and one end of the threaded support rod (405) is fixedly connected with a support plate (406).

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