Anti-collapse structure

Abstract

The utility model belongs to the technical field of foundation pit construction of geotechnical engineering, and particularly provides an anti-collapse structure which comprises a top plate, conical blocks, a protection plate and T-shaped blocks, the top plate is laid on the ground on the periphery of a foundation pit in a surrounding mode, a plurality of first inserting holes are formed in the surface of the top plate, and the conical blocks are inserted into the first inserting holes in a one-to-one correspondence mode. The conical block penetrates through the first inserting holes and then is inserted into the ground, a plurality of second inserting holes are formed in the side wall of the conical block, and grooves are formed in the inner walls of the second inserting holes. The fixing mechanism is adopted, the protection plate can be fixed to the inner wall of the foundation pit, the inner wall of the foundation pit is reinforced through the protection plate, and collapse is prevented; as the protective plate is small in occupied space and the supporting position is tightly attached to the inner wall of the foundation pit, the space of the central part in the foundation pit is not occupied, the situation of dividing the internal space of the foundation pit is avoided, and the problems that the working space in the foundation pit is insufficient and construction equipment selection is limited by space division are solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the foundation pit construction technical field of geotechnical engineering, and particularly provide a kind of anti-collapse structure. BACKGROUND

[0002] During geotechnical engineering construction, foundation pit excavation operation is often involved, and during the construction process of foundation pit excavation operation, support structure needs to be deployed periodically to avoid the occurrence of pit wall collapse.

[0003] At present, the common similar support structure on market all adopts the support mode of force from inside to outside, and the equipment main body is deployed inside the foundation pit, which needs to occupy larger internal space of the foundation pit, and compresses the working space of construction personnel. At the same time, considering that the support structure will also divide the internal space of the foundation pit, leading to the fragmentation of the space in the pit, and further making the selection of construction equipment limited, which affects the construction efficiency of foundation pit excavation operation in many aspects. UTILITY MODEL CONTENTS

[0004] To solve the above technical problems, the utility model adopts the technical scheme of: a kind of anti-collapse structure, including top plate, conical block, guard plate and T-shaped block, top plate is laid around on the ground of the periphery of foundation pit, the surface of top plate is provided with a plurality of first insertion hole, a plurality of conical blocks are inserted into a plurality of first insertion hole one by one, and the conical block is inserted into the ground after penetrating the first insertion hole, the inner side wall of foundation pit is uniformly provided with guard plate, and the upper end of guard plate is fixedly connected with corresponding top plate, the surface of guard plate is uniformly provided with a plurality of third insertion hole, and the bottom of guard plate is provided with a plurality of conical rods, the conical rod is nailed into the bottom surface of foundation pit, a plurality of T-shaped blocks are inserted into a plurality of third insertion hole one by one, and the T-shaped block is nailed into the inner side wall of foundation pit after penetrating the third insertion hole.

[0005] Further, a plurality of second insertion holes are formed in the side wall of the conical block, and a recess is formed in the inner wall of the second insertion hole, a fixing rod is slidably installed in the recess, and a spring is assembled in the recess, the two ends of the spring are respectively in contact with the bottom surface of the fixing rod and the inner wall of the recess, and a guide slope is formed in the side wall of the fixing rod;

[0006] The fixing groove is formed in the end of the ground of the T-shaped block;

[0007] When the T-shaped block is nailed into the inner wall of the foundation pit, and the depth reaches the limit, the end of the T-shaped block is embedded in the second insertion hole, and the end of the T-shaped block is pushed into the recess through the guide slope, when the fixing groove is aligned with the fixing rod, the fixing rod is clamped into the fixing groove under the action of the spring.

[0008] Furthermore, a first slot is vertically provided inside the conical block, a pressing vertical block is slidably installed in the first slot, a pressing plate is provided on the top of the pressing vertical block, and a plurality of connecting blocks are provided on the side wall of the pressing vertical block. The groove is parallel to the first slot, a sliding hole is provided on the side wall of the groove, and the groove is connected to the first slot through the sliding hole, the connecting block slides in the corresponding sliding hole, and the connecting block is fixedly connected to the fixing rod.

[0009] Furthermore, a plurality of fifth insertion holes are provided on the surface of the top plate, and ground nails are inserted into the fifth insertion holes, and the ground nails penetrate the fifth insertion holes and are nailed into the ground.

[0010] Furthermore, a limiting ring is provided on the top of the outer side wall of the conical block. After the conical block is nailed into the ground, the limiting ring abuts against the upper surface of the top plate.

[0011] Furthermore, a limiting plate is provided on the side wall of the fixing rod, and a corresponding limiting flange is provided on the inner wall of the groove. After the fixing rod rebounds with the spring, the limiting plate is engaged with the limiting flange.

[0012] Furthermore, a retaining plate is provided on one side of the T-shaped block, and a pull block is fixedly connected to one side of the retaining plate. The retaining plate is inserted into the fourth socket opened in the T-shaped block, and the T-shaped block has a second slot opened on the side wall of the fixed groove. The retaining plate extends out of the fourth socket and is inserted into the second slot.

[0013] The beneficial effects of using the utility model are:

[0014] The utility model adopts a fixing mechanism to fix the protective plate on the inner wall of the foundation pit, and the inner wall of the foundation pit is reinforced by the protective plate to prevent collapse;

[0015] Since the protective plate itself takes up little space and the support position is close to the inner wall of the foundation pit, it will not occupy the central space inside the foundation pit, avoiding the situation of dividing the internal space of the foundation pit, and solving the problems of insufficient working space in the foundation pit and the selection of construction equipment being restricted by space division. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 This is a schematic structural diagram of the conical block in the present invention;

[0019] Figure 4 This is a schematic diagram of the connection relationship between the conical block and the protective plate in the present invention;

[0020] Figure 5It is a structural schematic diagram of the T-shaped block in the utility model.

[0021] Reference numerals include:

[0022] 1. Foundation pit;

[0023] 2. Top plate;

[0024] 201, first socket; 202, ground pin; 203, fifth socket;

[0025] 3. Conical block;

[0026] 301, fixing rod; 302, pressing plate; 303, pressing vertical block; 304, first slot; 305, second jack; 306, groove; 307, spring; 308, connecting block; 309, sliding hole; 310, limiting plate; 311, limiting ring;

[0027] 4. Protective plate;

[0028] 401, third jack; 402, tapered rod;

[0029] 5. T-shaped block;

[0030] 501, fixing groove; 502, earth retaining plate; 503, pull block; 504, fourth plug hole; 505, second slot. DETAILED DESCRIPTION

[0031] The present invention is described in detail below with reference to the accompanying drawings.

[0032] Reference Figure 1-Figure 5 , a collapse prevention structure, including a top plate 2, a conical block 3, a protective plate 4 and a T-shaped block 5. The top plate 2 is laid on the ground around the periphery of the foundation pit 1. A plurality of first plug holes 201 are opened on the surface of the top plate 2. A plurality of conical blocks 3 are inserted into the plurality of first plug holes 201 one by one, and the conical blocks 3 pass through the first plug holes 201 and are inserted into the ground. Protective plates 4 are fitted on the inner side walls of the foundation pit 1, and the upper ends of the protective plates 4 are fixedly connected to the corresponding top plates 2. A plurality of third plug holes 401 are evenly opened on the surface of the protective plates 4, and a plurality of cone rods 402 are provided at the bottom of the protective plates 4. The cone rods 402 are nailed into the bottom surface of the foundation pit 1, and a plurality of T-shaped blocks 5 are inserted into the plurality of third plug holes 401 one by one, and the T-shaped blocks 5 pass through the third plug holes 401 and are nailed into the inner wall of the foundation pit 1.

[0033] During the construction process, the insertion position of the cone block 3 is controlled at about 1.2 meters from the edge of the foundation pit 1, and the spacing between adjacent cone blocks 3 is controlled at about 1.5 meters to reduce the degree of damage to the rock mass caused by the cone block 3.

[0034] A plurality of second insertion holes 305 are formed on the side wall of the conical block 3, and a groove 306 is formed on the inner wall of each second insertion hole 305. A fixing rod 301 is slidably mounted in the groove 306, and a spring 307 is assembled in the groove 306. The two ends of the spring 307 abut against the bottom surface of the fixing rod 301 and the inner wall of the groove 306, respectively. A guiding slope is formed on the side wall of the fixing rod 301.

[0035] A fixing groove 501 is provided at the end of the T-shaped block 5 on the ground;

[0036] When the T-shaped block 5 is nailed into the inner wall of the foundation pit 1 and the nailing depth reaches the limit, the end of the T-shaped block 5 is embedded in the second insertion hole 305, and the end of the T-shaped block 5 pushes the fixing rod 301 to be received in the groove 306 through the guide slope. When the fixing groove 501 and the fixing rod 301 are aligned, the fixing rod 301 is stuck in the fixing groove 501 under the action of the rebound force of the spring 307.

[0037] A first slot 304 is vertically provided inside the conical block 3. A pressing vertical block 303 is slidably installed in the first slot 304. A pressing plate 302 is provided on the top of the pressing vertical block 303. A plurality of connecting blocks 308 are provided on the side wall of the pressing vertical block 303. A groove 306 is parallel to the first slot 304. A sliding hole 309 is provided on the side wall of the groove 306. The groove 306 is connected to the first slot 304 through the sliding hole 309. The connecting blocks 308 slide in the corresponding sliding holes 309 and are fixedly connected to the fixing rod 301.

[0038] When the staff presses down the pressing plate 302, the vertical block 303 is pressed downward as a whole, and at the same time, the fixed rod 301 connected to it is driven to move downward. The fixed rod 301 is disengaged from the fixing groove 501 and stored in the groove 306, releasing the fixed relationship between the T-shaped block 5 and the conical block 3.

[0039] A plurality of fifth insertion holes 203 are provided on the surface of the top plate 2 . Ground nails 202 are inserted into each of the fifth insertion holes 203 . The ground nails 202 penetrate through the fifth insertion holes 203 and are then nailed into the ground.

[0040] A limiting ring 311 is provided on the top of the outer side wall of the conical block 3 . After the conical block 3 is nailed into the ground, the limiting ring 311 abuts against the upper surface of the top plate 2 .

[0041] A limiting plate 310 is provided on the side wall of the fixing rod 301 , and a corresponding limiting flange is provided on the inner wall of the groove 306 . After the fixing rod 301 rebounds with the spring 307 , the limiting plate 310 is engaged with the limiting flange.

[0042] A retaining plate 502 is provided on one side of the T-shaped block 5, and a pull block 503 is fixedly connected to one side of the retaining plate 502. The retaining plate 502 is inserted into the fourth socket 504 provided on the T-shaped block 5. A second slot 505 is provided on the side wall of the fixing groove 501 of the T-shaped block 5. One end of the retaining plate 502 extends out of the fourth socket 504 and is inserted into the second slot 505.

[0043] When the T-shaped block 5 is nailed into the inner wall of the foundation pit 1, one end of the retaining plate 502 is inserted through the fourth insertion hole 504 and inserted into the second insertion slot 505. The retaining plate 502 blocks the fixing groove 501, effectively preventing soil from entering the fixing groove 501 when the T-shaped block 5 is inserted into the foundation pit 1, thereby avoiding affecting the insertion of the fixing rod 301 into the fixing groove 501.

[0044] After the T-shaped block 5 is inserted into the conical block 3 , the fixing rod 301 rests on the retaining plate 502 . The pulling block 503 can be pulled to remove the retaining plate 502 from the T-shaped block 5 , and the fixing rod 301 is then inserted into the fixing groove 501 .

[0045] The above content is only a preferred embodiment of the present invention. For ordinary technicians in this field, many changes can be made in the specific implementation methods and application scope based on the concept of the present invention. As long as these changes do not deviate from the concept of the present invention, they all fall within the scope of protection of the present invention.

Claims

1. An anti-collapse structure, characterized in that: It includes a top plate, a conical block, a protective plate and a T-shaped block. The top plate is laid on the ground around the periphery of the foundation pit. A plurality of first plug holes are opened on the surface of the top plate. A plurality of conical blocks are plugged into the plurality of first plug holes one by one, and the conical blocks are inserted into the ground after passing through the first plug holes. Protective plates are fitted on the inner walls of the foundation pit, and the upper ends of the protective plates are fixedly connected to the corresponding top plates. A plurality of third plug holes are evenly opened on the surface of the protective plates, and a plurality of conical rods are provided on the bottom of the protective plates. The conical rods are nailed into the bottom surface of the foundation pit. A plurality of T-shaped blocks are plugged into the plurality of third plug holes one by one, and the T-shaped blocks pass through the third plug holes and are nailed into the inner wall of the foundation pit.

2. The anti-collapse structure according to claim 1, characterized in that: A plurality of second insertion holes are provided on the side wall of the conical block, and a groove is provided on the inner wall of each of the second insertion holes. A fixing rod is slidably installed in the groove, and a spring is assembled in the groove. The two ends of the spring are respectively in contact with the bottom surface of the fixing rod and the inner wall of the groove. A guiding inclined surface is provided on the side wall of the fixing rod; A fixing groove is provided at the end of the T-shaped block ground; The T-shaped block is nailed into the inner wall of the foundation pit, and when the nailing depth reaches the limit, the end of the T-shaped block is embedded in the second insertion hole, and the end of the T-shaped block pushes the fixing rod to be received in the groove through the guide inclined surface. When the fixing groove and the fixing rod are aligned, the fixing rod is stuck in the fixing groove under the action of the spring rebound force.

3. The anti-collapse structure according to claim 2, characterized in that: A first slot is also vertically provided inside the conical block, a pressing vertical block is slidably installed in the first slot, a pressing plate is provided on the top of the pressing vertical block, a plurality of connecting blocks are provided on the side wall of the pressing vertical block, the groove is parallel to the first slot, a sliding hole is provided on the side wall of the groove, and the groove is connected to the first slot through the sliding hole, the connecting block slides in the corresponding sliding hole, and the connecting block is fixedly connected to the fixing rod.

4. The anti-collapse structure according to claim 1, characterized in that: A plurality of fifth insertion holes are provided on the surface of the top plate, and ground nails are inserted into the fifth insertion holes, and the ground nails penetrate the fifth insertion holes and are nailed into the ground.

5. The anti-collapse structure according to claim 1, characterized in that: A limiting ring is provided on the top of the outer side wall of the conical block. After the conical block is nailed into the ground, the limiting ring abuts against the upper surface of the top plate.

6. The anti-collapse structure according to claim 2, characterized in that: A limiting plate is provided on the side wall of the fixing rod, and a corresponding limiting flange is provided on the inner wall of the groove. After the fixing rod rebounds with the spring, the limiting plate is engaged with the limiting flange.

7. The anti-collapse structure according to claim 2, characterized in that: A retaining plate is provided on one side of the T-shaped block, and a pull block is fixedly connected to one side of the retaining plate. The retaining plate is inserted into the fourth socket opened in the T-shaped block. The T-shaped block has a second slot on the side wall of the fixed groove, and one end of the retaining plate extends out of the fourth socket and is inserted into the second slot.

Images