Protective device for preventing soil mass between piles from collapsing

Abstract

The utility model relates to a protective device for preventing collapse of soil between piles, which belongs to the technical field of underground construction engineering and is characterized in that a first groove is arranged on a connecting plate, a plurality of groups of first slots are arranged on the side wall of the first groove, connecting blocks are inserted into the first groove, and a support unit is connected between the connecting blocks. The number of the supporting units used for supporting the soil retaining net can be flexibly adjusted according to different stratum conditions.

Description

Technical Field

[0001] The utility model relates to the technical field of underground construction engineering, in particular to a protective device for preventing soil collapse between piles. Background Art

[0002] As a cost-effective and efficient support technology for foundation pit engineering, mesh shotcrete support is widely used in excavation under various geological conditions. This technology involves driving soil nails at regular intervals along the pit wall, attaching a steel mesh, and then spraying a concrete surface layer to form a continuous support structure, effectively supporting and reinforcing the soil on the pit sidewalls. Its flexible design and convenient construction are effective in controlling pit deformation.

[0003] In the prior art, Chinese patent publication number CN118326996A discloses a recyclable, prefabricated inter-pile soil protection device comprising an inter-pile retaining plate and a retaining plate connector. The inter-pile retaining plate is disposed between two cast-in-place piles. The retaining plate connector is disposed at the end of the inter-pile retaining plate and is secured to the cast-in-place piles via pre-buried anchor bolts. The retaining plate connector comprises a first and second interconnected connecting plate, each of which has mounting holes for connecting with the pre-buried anchor bolts. The first and second connecting plates have slots on a side wall adjacent to the inter-pile retaining plate, which engage with the inter-pile retaining plate. This facilitates installation and removal of the retaining plate, simplifies the process, and accelerates on-site construction. However, geological conditions vary across regions. For example, in strata rich in aquifers or highly compressible soil, the anchoring effect of mesh spraying can be significantly reduced, resulting in a decrease in the overall stability of the support structure and potential soil collapse between the piles. However, in general strata, excessive support structures may become underground obstacles.

[0004] In view of the above problems, the present invention proposes a new technical solution that is different from the existing technology. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a protective device for preventing soil collapse between piles in view of the problem that the supporting structure for supporting the retaining net in the prior art cannot be flexibly adjusted according to different stratum conditions.

[0006] This application provides a technical solution that adopts the following:

[0007] A protective device for preventing soil collapse between piles, comprising two groups of connecting plates and a retaining net arranged between two pile bodies, the connecting plates being fixed to the pile bodies by embedded anchor bolts, the connecting plates being arranged parallel to each other, the inner sides of the two groups of connecting plates being provided with a first groove, the side walls of the first groove being provided with multiple groups of first slots, multiple groups of corresponding connecting blocks being inserted into the two groups of first grooves, the inner end surfaces of the connecting blocks being provided with second slots for inserting the retaining net, and support units for supporting the retaining net being hingedly connected between each group of connecting blocks via connecting pieces.

[0008] By adopting the above technical solution, the utility model can change the number of support units used to support the retaining net by increasing or decreasing the number of connecting blocks inserted in the first groove according to the conditions of the stratum, thereby improving work efficiency.

[0009] Furthermore, the support unit includes a first support plate and a second support plate with a preset thickness, and the bottom ends of the first support plate and the second support plate are hinged to each other through a hinge structure.

[0010] By adopting the above technical solution, the first support plate and the second support plate cooperate with each other with the hinge structure so that after the connecting surfaces of the first support plate and the second support plate collide with each other, the first support plate and the second support plate will not continue to bend, thereby achieving a supporting effect on the retaining net and improving the stability of the device. At the same time, the interaction between the first support plate and the second support plate supports the two groups of pile bodies.

[0011] Furthermore, the upper end surfaces of the first support plate and the second support plate are fixed with fixed blocks, the inner sides of the two groups of fixed blocks are fixed with hooks, and a hook spring is connected between the two groups of hooks. The contraction of the hook spring and the interaction between the first support plate and the second support plate of preset thickness make the connecting surfaces of the first support plate and the second support plate conflict with each other.

[0012] By adopting the above technical solution, the hook spring interacts with the fixing blocks on the first support plate and the second support plate, so that the first support plate and the second support plate always keep in contact with each other, thereby improving the stability of the device.

[0013] Furthermore, a second groove is formed on the inner end surface of the connecting block, and sliding grooves are formed on both sides of the inner wall of the second groove. The connecting part includes two groups of pages arranged symmetrically with each other, one end of the page is hinged to the support unit, and the other end extends into the second groove and a protrusion is fixed outward on the side wall of the page. The protrusion extends to interfere with the bottom wall of the slide groove, and a preset gap is left between the side wall of the page and the side wall of the second groove, and a preset gap is left between the protrusion and the side wall of the slide groove.

[0014] By adopting the above technical solution, the support unit has room for movement in the longitudinal direction of the axis, and at the same time, the protrusion is in contact with the bottom wall of the slide groove, which prevents the sheet from falling out of the second groove.

[0015] Furthermore, the first slots are arranged in an array on the side wall of the first groove so that the cross section of the side wall of the first groove is sawtooth-shaped, and the shape of the outer wall of the connecting block matches the shape of the side wall of the first groove.

[0016] By adopting the above technical solution, the connecting block can be more flexibly inserted into any position in the first groove.

[0017] Furthermore, the embedded anchor bolts are provided in multiple groups and are arranged at intervals.

[0018] By adopting the above technical solution, the connecting plate can be more stably fixed between the pile bodies, thereby improving the stability of the device.

[0019] Furthermore, the support unit is a U-shaped slot, and both ends of the U-shaped slot are fixedly connected to the connecting block through connecting pieces.

[0020] By adopting the above technical solution, the retaining net is simultaneously clamped in the U-shaped slot and the second slot of the connecting block, thereby improving the fixation of the retaining net. At the same time, the U-shaped slot supports and fixes the two pile bodies.

[0021] The beneficial effects of the present invention are as follows: the present invention provides a first groove on the connecting plate, opens multiple groups of first slots on the side wall of the first groove, inserts the connecting block into the first groove, and connects the connecting blocks with support units, thereby realizing flexible adjustment of the number of support units for supporting the retaining net according to different stratum conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 It is a partial structural diagram of the utility model;

[0024] Figure 3 It is a structural diagram of the support unit of the utility model;

[0025] Figure 4 It is a structural diagram of the connection block of the utility model;

[0026] Figure 5 This is a schematic structural diagram of the second embodiment of the present utility model;

[0027] In the figure: 1. Pile body; 2. Retaining net; 3. Embedded anchor bolt; 4. Connecting plate; 41. First groove; 42. First slot; 5. Connecting block; 51. Second slot; 52. Connecting piece; 53. Second groove; 54. Slide; 55. Leaf; 56. Protrusion; 6. Support unit; 61. First support plate; 62. Second support plate; 63. Fixing block; 64. Hook; 65. Hook spring; 7. U-shaped slot. DETAILED DESCRIPTION

[0028] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The embodiments given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0029] The embodiment of the present application discloses a protective device for preventing soil collapse between piles. Example 1

[0030] Reference Figures 1 to 3 A protective device for preventing soil collapse between piles includes two groups of connecting plates 4 and a retaining net 2 arranged between the two pile bodies 1. The connecting plates 4 are fixed to the pile body 1 by pre-buried anchor bolts 3. The connecting plates 4 are arranged parallel to each other. The inner sides of the two groups of connecting plates 4 are provided with a first groove 41. The side walls of the first groove 41 are provided with multiple groups of first slots 42. Multiple groups of corresponding connecting blocks 5 are inserted into the two groups of first grooves 41. The inner end surfaces of the connecting blocks 5 are provided with second slots 51 for inserting the retaining net 2. Each group of connecting blocks 5 is connected with a support unit 6 for supporting the retaining net 2 through a connecting piece 52. The number of support units 6 for supporting the retaining net 2 can be changed by increasing or decreasing the number of connecting blocks 5 inserted in the first grooves 41 according to the conditions of the stratum, thereby improving work efficiency.

[0031] Reference Figures 1 to 3 The support unit 6 includes a first support plate 61 and a second support plate 62 with a preset thickness. The bottom ends of the first support plate 61 and the second support plate 62 are hinged to each other through a hinge structure. The first support plate 61 and the second support plate 62 cooperate with the hinge structure so that after the connecting surfaces of the first support plate 61 and the second support plate 62 collide with each other, the first support plate 61 and the second support plate 62 will not continue to bend, thereby achieving a supporting effect on the retaining net 2 and improving the stability of the device. At the same time, the interaction between the first support plate 61 and the second support plate 62 supports the two groups of pile bodies 1.

[0032] Reference Figures 1 to 3 The upper end surfaces of the first support plate 61 and the second support plate 62 are both fixed with fixed blocks 63, and the inner sides of the two groups of fixed blocks 63 are both fixed with hooks 64. A hook 64 spring is hung between the two groups of hooks 64. Through the contraction of the hook 64 spring and the interaction between the first support plate 61 and the second support plate 62 of preset thickness, the connecting surfaces of the first support plate 61 and the second support plate 62 are in conflict with each other. Through the interaction between the hook 64 spring and the fixed blocks 63 on the first support plate 61 and the second support plate 62, the first support plate 61 and the second support plate 62 are always kept in conflict with each other, thereby improving the stability of the device.

[0033] Reference Figures 2 to 4A second groove 53 is formed on the inner end surface of the connecting block 5, and slide grooves 54 are formed on both sides of the inner wall of the second groove 53. The connecting member 52 includes two groups of symmetrically arranged pages 55, one end of the page 55 is hinged to the support unit 6, and the other end extends into the second groove 53 and a protrusion 56 is fixed outward on the side wall of the page 55. The protrusion 56 extends to interfere with the bottom wall of the slide groove 54. A preset gap is left between the side wall of the page 55 and the side wall of the second groove 53, and a preset gap is left between the protrusion 56 and the side wall of the slide groove 54. The support unit 6 has space for movement in the axial direction. At the same time, because the protrusion 56 interferes with the bottom wall of the slide groove 54, the page 55 is prevented from falling off from the second groove 53.

[0034] Reference Figure 2 The first slots 42 are arranged in an array on the side wall of the first groove 41 so that the cross-section of the side wall of the first groove 41 is serrated. The outer wall shape of the connecting block 5 matches the shape of the side wall of the first groove 41, which enables the connecting block 5 to be more flexibly inserted into any position in the first groove 41.

[0035] Reference Figure 1 The embedded anchor bolts 3 are provided in multiple groups and are arranged at intervals, so that the connecting plate 4 is more stably fixed between the pile bodies 1, thereby improving the stability of the device.

[0036] The implementation principle of the protective device for preventing soil collapse between piles in an embodiment of the present application is: by setting a first groove 41 on the connecting plate 4, and by opening multiple groups of first slots 42 on the side wall of the first groove 41, the connecting block 5 is inserted into the first groove 41, and support units 6 are connected between the connecting blocks 5, so that the number of support units 6 used to support the retaining net 2 can be flexibly adjusted according to different ground conditions. Example 2

[0037] Reference Figure 5 The difference between Example 2 and Example 1 is that the first support plate 61 and the second support plate 62 of the support unit 6 are replaced by a U-shaped slot 7, and the two ends of the U-shaped slot 7 are fixedly connected to the connecting block 5 through a connecting piece 52, and the retaining net 2 is simultaneously clamped in the U-shaped slot 7 and the second slot 51 of the connecting block 5, thereby improving the fixation of the retaining net 2. At the same time, the U-shaped slot 7 plays a supporting and fixing role for the two pile bodies 1.

[0038] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A device for preventing soil collapse between piles, comprising two sets of connecting plates (4) and a retaining net (2) arranged between two pile bodies (1), wherein the connecting plates (4) are fixed to the pile bodies (1) by pre-buried anchor bolts (3), and characterized in that: The connecting plates (4) are arranged parallel to each other, and the inner sides of the two groups of connecting plates (4) are each provided with a first groove (41), and the side walls of the first groove (41) are provided with a plurality of first slots (42). The two groups of first grooves (41) are plugged with a plurality of corresponding connecting blocks (5), and the inner end surfaces of the connecting blocks (5) are provided with second slots (51) for inserting the retaining net (2). A supporting unit (6) for supporting the retaining net (2) is connected between each group of connecting blocks (5) via a connecting piece (52).

2. The device for preventing soil collapse between piles according to claim 1, characterized in that: The support unit (6) comprises a first support plate (61) and a second support plate (62) having a preset thickness, wherein the bottom ends of the first support plate (61) and the second support plate (62) are hinged to each other via a hinge structure.

3. The device for preventing soil collapse between piles according to claim 2, characterized in that: The upper end surfaces of the first support plate (61) and the second support plate (62) are both fixed with fixed blocks (63), the inner sides of the two groups of fixed blocks (63) are both fixed with hooks (64), and a hook (64) spring is connected between the two groups of hooks (64). Through the contraction of the hook (64) spring and the interaction between the first support plate (61) and the second support plate (62) of preset thickness, the connecting surfaces of the first support plate (61) and the second support plate (62) are in contact with each other.

4. The device for preventing soil collapse between piles according to claim 1, characterized in that: The inner end surface of the connecting block (5) is provided with a second groove (53), and the inner walls of the second groove (53) are provided with sliding grooves (54) on both sides. The connecting member (52) includes two sets of symmetrically arranged leaf pieces (55), one end of the leaf piece (55) is hinged to the support unit (6), and the other end is extended into the second groove (53). The side wall of the leaf piece (55) is fixed with a protrusion (56) outwardly, and the protrusion (56) extends to contact the bottom wall of the sliding groove (54). A preset gap is left between the side wall of the leaf piece (55) and the side wall of the second groove (53), and a preset gap is left between the protrusion (56) and the side wall of the sliding groove (54).

5. The device for preventing soil collapse between piles according to claim 1, characterized in that: The first slots (42) are arranged in an array on the side wall of the first groove (41) so that the cross section of the side wall of the first groove (41) is sawtooth-shaped, and the shape of the outer wall of the connecting block (5) matches the shape of the side wall of the first groove (41).

6. The device for preventing soil collapse between piles according to claim 1, characterized in that: The embedded anchor bolts (3) are provided in multiple groups and are arranged at intervals.

7. The device for preventing soil collapse between piles according to claim 1, characterized in that: The support unit (6) is a U-shaped slot (7), and both ends of the U-shaped slot (7) are fixedly connected to the connection block (5) via connecting pieces (52).

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