Steel wire mesh slope protection structure of dock foundation pit

Abstract

The invention discloses a dock foundation pit steel wire mesh slope protection structure which is arranged on the slope surface of a slope body and comprises a base layer, a steel wire mesh, a steel wire mesh and a steel wire mesh, the base layer is composed of module bases spliced through inserts, and the single module base is fixed to the slope surface of the slope body in advance through an anchor rod pouring technology; and the filling layer is formed by gravel filled in gaps among the spliced module seats. According to the dock foundation pit steel wire mesh slope protection structure provided for overcoming existing defects, through the prefabricated module bases and the standardized inserts, rapid splicing of the slope protection base layer is achieved, the traditional tedious working procedure of spot-by-spot welding or pouring on site is changed, the construction period is greatly shortened, and the construction efficiency is improved. The annular protrusion and the square protrusion on the back face of the module base have the temporary positioning function, the anchor rod can be accurately guided to be aligned with a slope pre-drilled hole in cooperation with the movable positioning piece, the construction quality of an anchoring system is guaranteed, the X-shaped design of the insert and the application of the edge sealing strip ensure that base layer abutted seams are tight, and filling gravel is effectively prevented from leaking.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of port engineering construction, in particular to a steel wire mesh slope protection structure for a dock foundation pit. BACKGROUND

[0002] Traditional slope protection structures, such as on-site point-by-point welding of steel components, integral cast-in-place concrete or masonry, etc., require a large amount of on-site work, and the construction steps need to be carried out step by step, which is too dependent on manual work and weather, resulting in a long construction period, high labor intensity, high comprehensive cost, and on the slope surface, the drilling position, angle of anchor rods and subsequent centering connection with the slope protection components are prone to deviation; such deviation can lead to a decrease in anchoring force, uneven structure stress, and hidden safety hazards, and it is difficult to adjust in the later period.

[0003] Therefore, the steel wire mesh slope protection structure for a dock foundation pit is proposed to solve the above problems. SUMMARY

[0004] The purpose of the present application is to provide a steel wire mesh slope protection structure for a dock foundation pit to overcome the existing defects and solve the problems raised in the background.

[0005] To achieve the above purpose, the present application provides the following technical solution: a steel wire mesh slope protection structure for a dock foundation pit, which is arranged on the slope surface of a slope body and comprises: a base layer composed of module seats spliced by inserts, a single module seat being pre-fixed on the slope surface of the slope body by an anchor rod pouring process; a filling layer composed of sand and gravel filled in the gap between the spliced module seats; an edge sealing strip embedded in the boundary of the module seat by the insert; a surface layer comprising, in sequence, a geotextile and a reinforced steel wire mesh covering the surface of the base layer; a compression and fixation assembly comprising a compression strip and a bolt, the back surface of the compression strip being integrally formed with a square nut, and the square nut being insertable into the reserved hole in the end surface of the anchor rod.

[0006] Preferably, the insert is an X-shaped structure with an outwardly convex structure formed at the four corners of the central block.

[0007] Preferably, a single module seat comprises a bottom plate and two L-shaped wing plates welded on the front surface of the bottom plate. A central hole for passing through the anchor rod is formed in the center of the bottom plate. The back surface of the bottom plate is provided with an annular protrusion coaxial with the central hole and a square protrusion located at the outer edge of the bottom plate, and the annular protrusion and the square protrusion both have a taper.

[0008] Preferably, grooves are formed in the wing plates to communicate the cavities between adjacent module seats when filling sand and gravel.

[0009] Preferably, the positioning member is arranged on the inner side of the wing plate; The positioning member comprises a center ring body and an extension rod integrally formed on the surface of the center ring body; The inner side of the wing plate is provided with a guide rail, and the extension rod is movably arranged on the guide rail.

[0010] Preferably, the guide rail comprises a main rail body and a sub-rail body; The end of the extension rod is provided with a round shaft, and the end surface of the round shaft is fixed with a square slide block; The round shaft is slidably arranged in the main rail body, and the square slide block is slidably arranged in the sub-rail body.

[0011] Preferably, the end of the sub-rail body is provided with a crack stopping hole, and the size of the crack stopping hole is larger than that of the square slide block.

[0012] Preferably, the side surface of the main rail body is fixedly provided with a connecting block, and the main rail body is fixedly connected with the wing plate through the connecting block.

[0013] Preferably, the side surface of the wing plate is further fixedly provided with a stop block for limiting the movement range of the center ring body.

[0014] Preferably, the connecting part between the surface layer and the anchor rod is further provided with a pad, and the pad is in contact with the inner surface of the surface layer.

[0015] Compared with the prior art, the beneficial effects of the present application are as follows: the steel wire mesh slope protection structure of the present application realizes the rapid assembly of the slope protection base layer through the prefabricated module seat and the standardized insert, changes the complicated process of traditional on-site point welding or pouring, greatly shortens the construction period, and the annular protrusion and the square protrusion on the back of the module seat have a temporary positioning function, which can accurately guide the anchor rod to align with the pre-drilled hole of the slope body in cooperation with the movable positioning member, thereby ensuring the construction quality of the anchoring system, and the X-shaped design of the insert and the application of the edge sealing strip ensure that the base layer joint is tight, effectively prevent sand and gravel leakage, and form a stable overall base layer. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of the specification, illustrate the present application together with the embodiments thereof, and explain the present application, and do not constitute a limitation of the present application. In the drawings: Figure 1 It is a schematic view of the overall installation state of the present application; Figure 2 It is an exploded view of each hierarchical structure of the present application; Figure 3 It is a sectional view of the connection node structure of the present application and the slope body; Figure 4This is an exploded view of the square nut structure of the present invention; Figure 5 This is a schematic diagram of the splicing state of the insert structure of the present invention; Figure 6 This is a schematic diagram of another splicing state of the insert structure of the present invention; Figure 7 This is a schematic diagram of the module base structure of the present invention; Figure 8 This is a top view of the module base structure of the present invention; Figure 9 This is a schematic diagram of the back structure of the base plate of the present invention; Figure 10 This is an exploded view of the guide rail structure of the present invention.

[0017] In the diagram: 1. Slope; 2. Base layer; 21. Module seat; 22. Edge sealing strip; 23. Insert; 24. Anchor bolt; 25. Base plate; 26. Wing plate; 27. Slot; 28. Center hole; 29. ​​Square protrusion; 210. Annular protrusion; 3. Surface layer; 31. Reverse filter geotextile; 32. Reinforcing wire mesh; 4. Pressure strip; 5. Pad block; 6. Positioning component; 61. Central ring; 62. Extension rod; 621. Round shaft; 622. Square slider; 63. Guide rail; 631. Main rail body; 632. Sub-rail body; 633. Connecting block; 64. Stop block; 7. Square nut. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] like Figures 1 to 10 As shown, the steel wire mesh slope protection structure for the dock foundation pit is set on the slope surface of the slope 1, including: a base layer 2, which is composed of modular seats 21 spliced ​​by inserts 23. Each modular seat 21 is pre-fixed to the slope surface of the slope 1 using the anchor rod 24 casting process; each modular seat 21 includes a base plate 25 and two L-shaped wing plates 26 welded to the front of the base plate 25 to integrate the base plate 25 with the wing plates 26 forming the filling compartment as a stable basic unit, providing reliable support for subsequent filling and covering; the center of the base plate 25 has a central hole 28 for the anchor rod 24 to pass through; the back of the base plate 25 has an annular protrusion 210 coaxial with the central hole 28 and a square protrusion 29 located on the outer edge of the base plate 25. Both the annular protrusion 210 and the square protrusion 29 have a taper, which can be used to temporarily embed into the slope soil to prevent the module from sliding and shifting before anchoring construction, greatly facilitating the synchronous installation of single or multiple modules.

[0020] The filling layer is composed of sandstone filled in the gap between the spliced module seats 21; the wing plate 26 is provided with a slot hole 27 for communicating the cavities between the adjacent module seats 21 when filling the sandstone, allowing the sandstone to flow between the cavities of the adjacent module seats 21, avoiding the formation of a hollow behind the wing plate 26, and ensuring that the filling layer is overall dense and uniformly stressed.

[0021] The edge strip 22 is connected to the boundary of the module seat 21 through the insert 23; the insert 23 is an X-shaped structure, and the four corners of the central square are provided with outwardly convex structures, which can simultaneously connect four directions of adjacent module seats 21 or edge strips 22, realize rapid splicing, constrain displacement in all directions, form a mechanical locking effect, effectively eliminate the construction gap between the modules, prevent the filling sandstone from leaking from the joint, and a single part meets the needs of all splicing nodes, reducing the types of parts and simplifying logistics and construction management.

[0022] The surface layer 3 includes a geotextile 31 and a reinforced steel mesh 32 in sequence, which are covered on the surface of the base layer 2; the connection part of the surface layer 3 and the anchor rod 24 is further provided with a cushion block 5, and the cushion block 5 is in contact with the inner surface of the surface layer 3.

[0023] The compression fixing assembly includes a compression strip 4 and a bolt, and the back of the compression strip 4 is integrally formed with a square nut 7 which can be inserted into the reserved hole at the end surface of the anchor rod 24; the anchor rod 24 is provided with an internal threaded hole, and the cooperation of the square nut 7 and the reserved hole at the end of the anchor rod 24 can effectively prevent the nut from rotating when the bolt is tightened, realize rapid and powerful tensioning, and tightly press the surface layer 3 on the base layer 2; at the same time, the bolt connection mode allows the compression strip 4 to be disassembled when needed, so that the geotextile or steel mesh of the lower layer can be inspected or replaced, and the maintainability of the structure is improved.

[0024] The positioning member 6 is arranged on the inner side of the wing plate 26, and comprises a center ring body 61 which provides accurate axial guidance for the anchor rod 24, ensures that the anchor rod 24 is vertically or at a designed angle into the pre-drilled hole, greatly improves the reliability of the anchoring system, and an extension rod 62 integrally formed on the surface of the center ring body 61; the side of the wing plate 26 is also fixed with a stop block 64 for limiting the movement range of the center ring body 61, and the inner side of the wing plate 26 is provided with a guide rail 63, and the extension rod 62 is movably arranged on the guide rail 63; the guide rail 63 comprises a main rail body 631 and a secondary rail body 632; the end of the extension rod 62 is provided with a circular shaft 621, and the end surface of the circular shaft 621 is fixed with a square slide block 622; the circular shaft 621 is slidably arranged in the main rail body 631, and the side of the main rail body 631 is fixedly provided with a connecting block 633; the connecting block 633 lifts the guide rail 63 away from the surface of the wing plate 26, providing sufficient space for the sliding and rotating of the extension rod 62, preventing jamming, and the main rail body 631 is fixedly connected with the wing plate 26 through the connecting block 633; the square slide block 622 is slidably arranged in the secondary rail body 632, and the end of the secondary rail body 632 is provided with a crack stopping hole, and the size of the crack stopping hole is larger than that of the square slide block 622; after use, the square slide block 622 can be made to enter the crack stopping hole through sliding, so that the entire positioning member 6 is rotated and stored, avoiding the shielding and interference of the positioning member 6 on subsequent pouring and filling operations.

[0025] The present application discloses a steel wire mesh slope protection structure for a ship dock foundation pit, which is arranged on the slope surface of the slope body 1 and comprises a base layer 2 directly contacting the slope surface of the slope body 1, a filling layer filling the gaps in the base layer 2, and a surface layer 3 covering the base layer 2 after filling; wherein the base layer 2 is first spliced by a plurality of module seats 21 using inserts 23, and a single module seat 21 is fixed on the slope surface of the slope body 1 by anchor rod 24 pouring process in advance, then gravel is filled in the gaps between the module seats 21, and the edge sealing strip 22 is embedded in the boundary of the module seat 21 using the insert 23 at the same time to prevent internal gravel leakage, finally the geotextile 31 and the reinforced steel wire mesh 32 are sequentially covered, and the square nut 7 integrally formed on the back of the pressing strip 4 is inserted into the reserved hole at the end surface of the anchor rod 24 and locked by a bolt to tightly fix the entire surface layer 3 on the surface of the base layer 2, thereby completing the installation of the slope protection structure; meanwhile, the gasket 5 is additionally arranged at the connection between the surface layer 3 and the anchor rod 24 to fill the virtual position and avoid damage to the surface layer 3 caused by stress during bolt locking.

[0026] The insert 23 is designed in an X-shaped structure, and outer convex structures are formed at the four corners of the center block to be clamped into the adjacent module seat 21 or edge sealing strip 22, thereby achieving tight splicing of the entire base layer 2.

[0027] The single module seat 21 is composed of a bottom plate 25, two L-shaped wing plates 26 welded integrally on the front surface of the bottom plate 25, and a central hole 28 in the center of the bottom plate 25 for passing through the anchor rod 24. A ring-shaped protrusion 210 coaxial with the central hole 28 is additionally arranged on the back surface of the bottom plate 25, and a square protrusion 29 is arranged on the outer edge of the bottom plate 25. Both the ring-shaped protrusion 210 and the square protrusion 29 are tapered, so that after the central hole 28 of the bottom plate 25 is aligned with the anchor bolt hole of the slope surface 1, the entire bottom plate 25 is pressed, the ring-shaped protrusion 210 and the square protrusion 29 are temporarily embedded in the slope surface 1, then the positioning member 6 on the inner surface of the wing plate 26 is used for centering, the anchor rod 24 is inserted into the anchor bolt hole of the slope surface 1 along the axis of the central hole 28, and then concrete is poured into the hole. After solidification, the bottom plate 25 can be fixed on the slope surface 1. When filling sand and gravel, the slot holes 27 on the wing plates 26 can communicate the cavities between the module seats 21, so as to facilitate the flow of sand and gravel and fill the gaps.

[0028] The positioning member 6 is mainly composed of a central ring body 61 and an extension rod 62 integrally formed on the surface of the central ring body 61. The extension rod 62 is movable along the guide rail 63 on the inner surface of the wing plate 26. The end surface of the circular shaft 621 at the end of the extension rod 62 is fixed with a square slide block 622. The circular shaft 621 slides along the main rail body 631 of the guide rail 63, and the square slide block 622 slides along the secondary rail body 632. When the square slide block 622 slides to the stop hole of the secondary rail body 632, the square slide block 622 does not contact the secondary rail body 632. At this time, the entire extension rod 62 and the central ring body 61 rotate around the circular shaft 621 as the center, exposing the central hole 28 of the bottom plate 25. The main rail body 631 and the wing plate 26 are fixedly connected by the connecting block 633 to increase the gap between the extension rod 62 and the wing plate 26, so as to avoid interference when the extension rod 62 moves. The side surface of the wing plate 26 on the other side is fixed with a stop block 64 for limiting the excessive movement of the central ring body 61, so as to realize the flexible adjustment of the entire central ring body 61 to adapt to the centering application or the idle folding state. In the idle folding state, the central hole 28 is not blocked, and the central hole 28 of the bottom plate 25 is aligned with the anchor bolt hole of the slope surface 1.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or replace some technical features with equivalent ones, as long as they are within the spirit and principles of the present application. Any modification, equivalent replacement, improvement, etc. made within the scope of the present application shall be included in the protection scope of the present application.

Claims

1. A steel wire mesh slope protection structure for a dock foundation pit, erected on the slope surface of a slope (1), characterized in that, include: The base layer (2) consists of modular seats (21) spliced ​​by inserts (23), and each of the modular seats (21) is pre-fixed on the slope surface of the slope body (1) using the anchor rod (24) casting process; The filling layer consists of sand and gravel filling the gaps between the assembled module seats (21); An edge banding strip (22) is fitted into the boundary of the module base (21) by means of the insert (23); The surface layer (3) includes, in sequence, a geotextile (31) and a reinforcing wire mesh (32) covering the surface of the base layer (2). The clamping and fixing assembly includes a clamping strip (4) and a bolt. The back of the clamping strip (4) is integrally formed with a square nut (7), which can be inserted into a reserved hole on the end face of the anchor rod (24).

2. The dock foundation pit steel wire mesh slope protection structure according to claim 1, characterized in that, The insert (23) has an X-shaped structure, with convex structures formed at the four corners of its central square.

3. The dock foundation pit steel wire mesh slope protection structure according to claim 1, characterized in that, Each of the module bases (21) includes a base plate (25) and two L-shaped wing plates (26) welded to the front of the base plate (25); The base plate (25) has a central hole (28) for passing through the anchor rod (24); The back of the base plate (25) is provided with an annular protrusion (210) coaxial with the central hole (28) and a square protrusion (29) located on the outer edge of the base plate (25). Both the annular protrusion (210) and the square protrusion (29) have a taper.

4. The dock foundation pit steel wire mesh slope protection structure according to claim 3, characterized in that, The wing plate (26) has slots (27) for connecting the cavities between adjacent module seats (21) when filling with sand and gravel.

5. The dock foundation pit steel wire mesh slope protection structure according to claim 3, characterized in that, It also includes a positioning element (6), which is disposed on the inner side of the wing plate (26); The positioning element (6) includes a central ring (61) and an extension rod (62) integrally formed on the surface of the central ring (61). The inner side of the wing plate (26) is provided with a guide rail (63), and the extension rod (62) is movably mounted on the guide rail (63).

6. The dock foundation pit steel wire mesh slope protection structure according to claim 5, characterized in that, The guide rail (63) includes a main rail body (631) and a secondary rail body (632). The end of the extension rod (62) is provided with a round shaft (621), and a square slider (622) is fixed on the end face of the round shaft (621). The circular shaft (621) is slidably disposed within the main rail body (631), and the square slider (622) is slidably disposed within the secondary rail body (632).

7. The dock foundation pit steel wire mesh slope protection structure according to claim 6, characterized in that, The end of the sub-rail body (632) is provided with a crack-stopping hole, the size of which is larger than the size of the square slider (622).

8. The dock foundation pit steel wire mesh slope protection structure according to claim 6, characterized in that, A connecting block (633) is fixedly installed on the side of the main rail body (631), and the main rail body (631) is fixedly connected to the wing plate (26) through the connecting block (633).

9. The dock foundation pit steel wire mesh slope protection structure according to claim 6, characterized in that, The side of the wing plate (26) is also fixed with a stop (64) for limiting the range of motion of the central ring (61).

10. The dock foundation pit steel wire mesh slope protection structure according to claim 1, characterized in that, A pad (5) is also provided at the connection between the surface layer (3) and the anchor rod (24), and the pad (5) is in contact with the inner surface of the surface layer (3).

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