Slope retaining structure and construction method

Abstract

The invention discloses a side slope supporting and retaining structure and a construction method, and belongs to the field of side slope protection.The side slope supporting and retaining structure comprises a side slope base body, a steel wire mesh, turf, an anchoring assembly and a concrete assembly, anchor holes are formed in the side slope base body, the steel wire mesh is laid on the side slope base body, the turf is laid on the steel wire mesh, and the anchoring assembly comprises an anchoring outer pipe and an anchoring inner pipe; the lower end of the anchoring inner pipe is connected with a plurality of barbs in a bent mode, and when the anchoring assembly is in a folded state, the upper ends of the barbs are close to the pipe wall of the anchoring inner pipe and the lower end of the anchoring outer pipe. When the anchoring assembly is in an unfolded state, the lower end of the anchoring outer pipe abuts against the sides, close to the pipe wall of the anchoring inner pipe, of the multiple barbs, the upper ends of the multiple barbs are away from the pipe wall of the anchoring inner pipe and abut against the inner wall of the anchor hole, and the concrete assembly is arranged on the inner side and the outer side of the anchoring assembly. The anchoring assembly provided by the embodiment of the invention has relatively good rigidity and shear strength, relatively strong anchoring force and good slope protection.

Description

Technical Field

[0001] The invention relates to the technical field of slope protection, and in particular to a slope retaining structure and a construction method. Background Art

[0002] Slope support is mainly used in projects such as mountains, rivers, highways, and railways, especially in areas with steep slopes, complex geological conditions, or potential landslide risks. It is mainly used to solve the problem of reinforcing the force perpendicular to the slope surface to enhance the bearing capacity of the slope and prevent slope instability and disasters. A slope support structure significantly improves the stability of the slope by constructing a reinforced concrete or prestressed concrete beam connected to the slope and combining it with an anchor cable anchored in the soil. The anchor cable uses a prestressed anchor cable, which is thinner, has poor bending resistance, weak anchoring force, and poor slope protection. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a slope retaining structure and a construction method, which solves the problems of thin prestressed anchor cables, poor bending resistance, weak anchoring force, and poor slope protection in the existing slope retaining structure.

[0004] A slope retaining structure according to an embodiment of the present invention includes:

[0005] A slope base, wherein the slope base is provided with anchor holes;

[0006] A steel wire mesh is laid on the slope base;

[0007] Turf, laid on the steel wire mesh;

[0008] An anchor assembly, one end of which is installed in the anchor hole, the anchor assembly comprising an anchor outer tube and an anchor inner tube, the anchor outer tube being slidably sleeved on the anchor inner tube, the end of the anchor outer tube exposed from the anchor hole being connected to the wire mesh, the lower end of the anchor inner tube being bent and connected with a plurality of barbs, the anchor assembly having a folded state and an unfolded state, when the anchor assembly is in the folded state, the upper ends of the plurality of barbs are close to the tube wall of the anchor inner tube and the lower end of the anchor outer tube; when the anchor assembly is in the unfolded state, the lower end of the anchor outer tube is close to the lower end of the anchor inner tube, the lower end of the anchor outer tube abuts against a side of the tube wall of the plurality of barbs close to the anchor inner tube, and the upper ends of the plurality of barbs are away from the tube wall of the anchor inner tube and abut against the inner wall of the anchor hole;

[0009] The concrete assembly comprises a first concrete layer and a second concrete layer, wherein the first concrete layer is arranged inside the anchor assembly, and the second concrete layer is arranged between the anchor assembly and the anchor hole.

[0010] A slope retaining structure according to an embodiment of the present invention has at least the following beneficial effects:

[0011] By setting up anchoring components to anchor the wire mesh on the slope, and laying turf on the wire mesh, the wire mesh can prevent the movement of soil and rocks, thereby enhancing the stability of the slope base. Covering the wire mesh with soil and turf can provide a foundation for vegetation growth, which helps to restore and protect the ecological environment of the slope. Concrete can be poured on both the inside and outside of the anchor assembly, which has good rigidity and shear strength, strong anchoring force, and good slope protection. When the anchor assembly is in the folded state, the overall diameter is small, which is convenient for insertion into the anchor hole. When the anchor assembly is switched to the unfolded state, the barb on the anchor inner tube can be unfolded, and the barb abuts the inner wall of the anchor hole. The anchor assembly is not easy to be pulled out of the anchor hole, which can increase the anchoring force of the anchor assembly. After pouring concrete, the barb can also enhance the strength of the second concrete layer.

[0012] According to some embodiments of the present invention, a plurality of long slot holes are provided on the anchoring outer tube, and the length direction of the plurality of long slot holes is the axial direction of the anchoring outer tube, a spike is protrudingly provided on the inner wall of the upper end of the long slot hole, and a push block is protrudingly provided on the anchoring inner tube, and the push block is located in the long slot hole. When the anchoring assembly is in a folded state, the push block is located at the lower end of the long slot hole, and the lower end of the spike is close to the tube wall of the anchoring outer tube and the push block; when the anchoring assembly is in an unfolded state, the push block is located at the upper end of the long slot hole, and the push block abuts against a side of the spike close to the anchoring inner tube, the spike is bent and connected to the anchoring outer tube, and the lower end of the spike is away from the tube wall of the anchoring outer tube and abuts against the inner wall of the anchor hole.

[0013] According to some embodiments of the present invention, the lower end of the spike is provided with a first chamfer, and the push block is provided with a second chamfer for guiding the spike to unfold;

[0014] The upper end of the barb is provided with a third chamfer, and the lower end of the anchoring outer tube is provided with a fourth chamfer for guiding the barb to unfold.

[0015] According to some embodiments of the present invention, the plurality of barbs are integrally formed with the anchor inner tube, and the plurality of spikes are integrally formed with the anchor outer tube.

[0016] According to some embodiments of the present invention, a retaining ring is provided on the tube wall at the lower end of the anchor outer tube, and when the anchor assembly is in an expanded state, the retaining ring abuts against the tube wall side of the plurality of barbs close to the anchor inner tube.

[0017] According to some embodiments of the present invention, a plurality of notched grooves are provided at the lower end of the anchoring inner tube, a plurality of barbs are connected one-to-one to the bottom walls of the plurality of notched grooves, and the first concrete layer and the second concrete layer are connected at the notched grooves.

[0018] According to some embodiments of the present invention, a plurality of anchor holes are provided, a plurality of anchor assemblies are provided, an anchor plate is provided at one end of the anchor outer tube exposed from the anchor hole, a plurality of connecting holes are provided on the anchor plate, two adjacent anchor assemblies are connected by connecting steel bars, both ends of the connecting steel bars are respectively passed through the connecting holes on the two anchor assemblies, and the wire mesh is connected to the connecting steel bars.

[0019] According to some embodiments of the present invention, the plurality of anchor holes are arranged in a rectangular array, and the plurality of anchoring assemblies are arranged in a rectangular array.

[0020] According to some embodiments of the present invention, the concrete assembly includes a third concrete layer, which is wrapped and connected to the outside of the connecting steel bars, and two ends of the third concrete layer are respectively connected to two of the second concrete layers, and multiple third concrete layers are arranged in a grid shape.

[0021] A construction method for a slope retaining structure comprises the following steps:

[0022] S1: Repair the slope surface of the slope base, measure and mark the slope surface of the slope base;

[0023] S2: Drill anchor holes at the marked positions of the slope base and excavate grouting grooves between two adjacent anchor holes;

[0024] S3: laying a wire mesh on the slope, inserting the anchor assembly in a folded state through the wire mesh into the anchor hole, and knocking the anchor outer tube to switch the anchor assembly to an unfolded state;

[0025] S4: Use connecting steel bars to connect two adjacent anchoring components. The connecting steel bars are located above the grouting groove. Use a U-shaped steel bar segment to insert into the grouting groove. The U-shaped steel bar segment passes through the wire mesh. The connecting steel bar is located inside the U-shaped steel bar segment. Fix the casting template outside the grouting groove and the anchor hole.

[0026] S5: pouring concrete into the anchor hole to form a second concrete layer, pouring concrete into the inner side of the anchor assembly to form a first concrete layer, and pouring concrete into the grouting groove to form a third concrete layer;

[0027] S6: Remove the casting formwork and lay turf in the enclosed space of multiple third concrete layers.

[0028] A construction method of a slope retaining structure according to an embodiment of the present invention has at least the following beneficial effects:

[0029] By setting up anchoring components to anchor the wire mesh on the slope, and laying turf on the wire mesh, the wire mesh can prevent the movement of soil and rocks, thereby enhancing the stability of the slope base. Covering the wire mesh with soil and turf can provide a foundation for vegetation growth, which helps to restore and protect the ecological environment of the slope. Concrete can be poured on both the inside and outside of the anchor assembly, which has good rigidity and shear strength, strong anchoring force, and good slope protection. When the anchor assembly is in the folded state, the overall diameter is small, which is convenient for insertion into the anchor hole. When the anchor assembly is switched to the unfolded state, the barb on the anchor inner tube can be unfolded, and the barb abuts the inner wall of the anchor hole. The anchor assembly is not easy to be pulled out of the anchor hole, which can increase the anchoring force of the anchor assembly. After pouring concrete, the barb can also enhance the strength of the second concrete layer.

[0030] Additional aspects and advantages of the invention will be set forth in part in the description which follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0032] Figure 1 A schematic structural diagram of a slope retaining structure according to an embodiment of the present invention;

[0033] Figure 2 A cross-sectional view of a slope retaining structure according to an embodiment of the present invention;

[0034] Figure 3 A partial structural cross-sectional view of a slope retaining structure according to an embodiment of the present invention;

[0035] Figure 4 It is a structural schematic diagram of an anchor assembly in a slope retaining structure according to an embodiment of the present invention when it is in a folded state;

[0036] Figure 5 It is a structural schematic diagram of an anchor assembly in a slope retaining structure according to an embodiment of the present invention when it is in an expanded state;

[0037] Figure 6 It is a structural schematic diagram of a plurality of anchoring assemblies connected in a slope retaining structure according to an embodiment of the present invention;

[0038] Figure 7 A schematic structural diagram of an anchor outer tube of a slope retaining structure according to an embodiment of the present invention;

[0039] Figure 8 It is a schematic structural diagram of the anchor inner tube of the slope retaining structure according to an embodiment of the present invention.

[0040] Figure Number:

[0041] 100, slope base; 110, anchor hole;

[0042] 200, wire mesh;

[0043] 300, turf;

[0044] 400, anchor assembly; 410, anchor outer tube; 411, long slot hole; 412, spike; 413, retaining ring; 4131, fourth chamfer; 414, anchor plate; 4141, connecting hole; 420, anchor inner tube; 421, barb; 422, push block; 4221, second chamfer; 423, notched groove; 430, connecting steel bar;

[0045] 500, concrete assembly; 510, first concrete layer; 520, second concrete layer; 530, third concrete layer. DETAILED DESCRIPTION

[0046] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0047] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0048] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] See also Figure 1 , Figure 2 and Figure 3 A slope retaining structure according to an embodiment of the present invention comprises a slope base 100, a wire mesh 200, turf 300, an anchoring assembly 400 and a concrete assembly 500. An anchor hole 110 is provided on the slope base 100, the wire mesh 200 is laid on the slope base 100, and the turf 300 is laid on the wire mesh 200. One end of the anchoring assembly 400 is installed in the anchor hole 110, and the anchoring assembly 400 comprises an anchoring outer tube 410 and an anchoring inner tube 420, the anchoring outer tube 410 is slidably sleeved on the anchoring inner tube 420, one end of the anchoring outer tube 410 exposed from the anchor hole 110 is connected to the wire mesh 200, and the lower end of the anchoring inner tube 420 is bent and connected with a plurality of barbs 421. The anchoring assembly 400 has a folded state and an unfolded state. When the anchoring assembly 400 is in the folded state, refer to Figure 4 The upper ends of the plurality of barbs 421 are close to the wall of the anchor inner tube 420 and the lower end of the anchor outer tube 410; when the anchor assembly 400 is in the deployed state, refer to Figure 5 The lower end of the anchor outer tube 410 is close to the lower end of the anchor inner tube 420, and the lower end of the anchor outer tube 410 abuts against the pipe wall of the plurality of barbs 421 close to the anchor inner tube 420. The upper ends of the plurality of barbs 421 are away from the pipe wall of the anchor inner tube 420 and abut against the inner wall of the anchor hole 110. The concrete assembly 500 includes a first concrete layer 510 and a second concrete layer 520. The first concrete layer 510 is disposed inside the anchor assembly 400, and the second concrete layer 520 is disposed between the anchor assembly 400 and the anchor hole 110.

[0050] By setting the anchor assembly 400 to anchor the wire mesh 200 on the slope, and laying the turf 300 on the wire mesh 200, the wire mesh 200 can prevent the movement of soil and rocks, thereby enhancing the stability of the slope base 100. Covering the soil and turf 300 above the wire mesh 200 can provide a foundation for vegetation growth, which helps to restore and protect the ecological environment of the slope. Concrete can be poured on the inside and outside of the anchor assembly 400, which has good rigidity and shear strength, strong anchoring force, and good slope protection. When the anchor assembly 400 is in a folded state, the overall diameter is small, which is convenient for inserting into the anchor hole 110. When the anchor assembly 400 is switched to the unfolded state (the anchor assembly 400 in the folded state is inserted into the anchor hole 110, and the anchor outer tube 410 is knocked downward along the axial direction of the anchor outer tube 410), the barb 421 on the anchor inner tube 420 can be unfolded, and the barb 421 abuts against the inner wall of the anchor hole 110. The anchor assembly 400 is not easy to be pulled out of the anchor hole 110, which can increase the anchoring force of the anchor assembly 400. After pouring concrete, the barb 421 can also enhance the strength of the second concrete layer 520.

[0051] In some embodiments, see Figure 7 and Figure 8The anchor outer tube 410 is provided with a plurality of long slot holes 411, the length direction of the plurality of long slot holes 411 is the axial direction of the anchor outer tube 410, and a spike 412 is protruding from the inner wall of the upper end of the long slot hole 411. A push block 422 is protruding from the anchor inner tube 420, and the push block 422 is welded to the anchor inner tube 420 and is located in the long slot hole 411. When the anchor assembly 400 is in the folded state, refer to Figure 4 , the push block 422 is located at the lower end of the long slot hole 411, and the lower end of the spike 412 is close to the wall of the anchor outer tube 410 and the push block 422; when the anchor assembly 400 is in the unfolded state, refer to Figure 5 The push block 422 is located at the upper end of the long slot hole 411, and the push block 422 abuts against the side of the spike 412 close to the anchor inner tube 420. The spike 412 is bent and connected to the anchor outer tube 410, and the lower end of the spike 412 is away from the tube wall of the anchor outer tube 410 and abuts against the inner wall of the anchor hole 110.

[0052] The overall diameter of the anchor assembly 400 in the folded state is small, which is convenient for inserting into the anchor hole 110. The anchor outer tube 410 is knocked along the axial direction of the anchor outer tube 410, and the anchor outer tube 410 slides along the axial direction of the anchor outer tube 410 relative to the anchor inner tube 420. The position of the push block 422 on the anchor inner tube 420 remains unchanged, and the push block 422 moves from the lower end in the long slot hole 411 to the upper end of the long slot hole 411. The push block 422 pushes the spike 412 to turn outward, so that the end of the spike 412 abuts against the inner wall of the anchor hole 110. The anchoring force of the anchor assembly 400 can be increased, and after pouring concrete, the turned-out spike 412 can also enhance the strength of the second concrete layer 520.

[0053] In some embodiments, see Figure 7 and Figure 8 The lower end of the spike 412 is provided with a first chamfer, and the push block 422 is provided with a second chamfer 4221, which is used to guide the deployment of the spike 412. The upper end of the barb 421 is provided with a third chamfer, and the lower end of the anchor outer tube 410 is provided with a fourth chamfer 4131, which is used to guide the deployment of the barb 421.

[0054] The anchor assembly 400 in the folded state is inserted into the anchor hole 110, and the anchor outer tube 410 is knocked along the axial direction of the anchor outer tube 410. The anchor outer tube 410 slides along the axial direction of the anchor outer tube 410 relative to the anchor inner tube 420. The position of the push block 422 on the anchor inner tube 420 remains unchanged. The push block 422 moves from the lower end in the long slot hole 411 to the upper end of the long slot hole 411. The push block 422 pushes the spike 412 to turn outward. The inclined surface of the first chamfer and the inclined surface of the second chamfer 4221 are parallel to each other, which can ensure that the spike 412 is turned outward smoothly and prevent the lower end of the spike 412 from always pressing against the push block 422. During the axial sliding process of the anchoring outer tube 410 relative to the anchoring inner tube 420, the lower end of the anchoring outer tube 410 moves to a position close to the lower end of the anchoring inner tube 420, and the lower end of the anchoring outer tube 410 pushes the barb 421 to turn outward. The inclined surface of the third chamfer and the inclined surface on the fourth chamfer 4131 are parallel to each other, which can ensure that the barb 421 is turned outward smoothly and avoid the lower end of the anchoring outer tube 410 always pressing against the barb 421.

[0055] In some embodiments, see Figure 7 and Figure 8 A plurality of barbs 421 are integrally formed with the anchor inner tube 420, and a plurality of spikes 412 are integrally formed with the anchor outer tube 410. The barbs 421 are integrally formed with the anchor inner tube 420 to ensure the connection strength between the barbs 421 and the anchor inner tube 420. The spikes 412 are integrally formed with the anchor outer tube 410 to ensure the connection strength between the spikes 412 and the anchor outer tube 410.

[0056] The barb 421 is directly cut at the lower end of the anchor inner tube 420, and then the barb 421 is bent along the cut end so that the upper end of the barb 421 is close to the tube wall of the anchor inner tube 420, so that the anchor inner tube 420 is in a folded state, which is convenient to process and has low processing cost.

[0057] Two parallel straight cuts are cut on the wall of the anchor outer tube 410, and then the lower end portion between the two straight cuts is cut off to form a long slot hole 411, and the upper end portion between the two straight cuts forms a spike 412, and the lower end portion between the two straight cuts is left empty to facilitate the insertion of the push block 422, which is convenient to process and has low processing cost.

[0058] In some embodiments, see Figure 7 and Figure 8A retaining ring 413 is provided on the tube wall at the lower end of the anchor outer tube 410. When the anchor assembly 400 is in the unfolded state, the retaining ring 413 abuts against the tube wall side of the plurality of barbs 421 close to the anchor inner tube 420. The lower end of the retaining ring 413 is chamfered. The retaining ring 413 can increase the wall thickness at the retaining ring 413. The anchor assembly 400 in the folded state is inserted into the anchor hole 110, and the anchor outer tube 410 is knocked along the axial direction of the anchor outer tube 410. The anchor outer tube 410 slides along the axial direction of the anchor outer tube 410 relative to the anchor inner tube 420. The retaining ring 413 pushes the barbs 421 to turn outward. The wall thickness at the retaining ring 413 is large, which can provide sufficient thrust to ensure that the barbs 421 can be smoothly turned outward to the end to abut against the inner wall of the anchor hole 110.

[0059] In some embodiments, see Figure 8 The lower end of the anchor inner tube 420 is provided with a plurality of notched grooves 423, and a plurality of barbs 421 are connected to the bottom walls of the plurality of notched grooves 423 in a one-to-one correspondence, and the first concrete layer 510 is connected to the second concrete layer 520 at the notched grooves 423. The barbs 421 are directly cut out at the lower end of the anchor inner tube 420, and then the barbs 421 are bent along the cut end, so that the upper end of the barbs 421 is close to the wall of the anchor inner tube 420, so that the anchor inner tube 420 is in a folded state, which is convenient for processing and has low processing cost. The notched grooves 423 connect the inner and outer sides of the anchor assembly 400, so that the first concrete layer 510 and the second concrete layer 520 can be connected, which can enhance the overall strength of the concrete assembly 500, and further enhance the anchoring force of the anchor assembly 400.

[0060] In some embodiments, see Figure 1 and Figure 6 , a plurality of anchor holes 110 are provided, a plurality of anchor assemblies 400 are provided, an anchor plate 414 is provided at one end of the anchor outer tube 410 exposed from the anchor hole 110, and a plurality of connection holes 4141 are provided on the anchor plate 414. Two adjacent anchor assemblies 400 are connected by connecting steel bars 430, and the two ends of the connecting steel bars 430 are respectively passed through the connection holes 4141 on the two anchor assemblies 400, and the wire mesh 200 is connected to the connecting steel bars 430.

[0061] The anchor assembly 400 is inserted into the anchor hole 110, and then the connecting steel bar 430 is used to connect two adjacent anchor assemblies 400. The end of the connecting steel bar 430 is first bent 90 degrees and inserted into the connecting hole 4141, and then the end extending out of the connecting hole 4141 is bent to ensure the connection strength. Multiple anchor assemblies 400 are connected by connecting steel bars 430, and the connecting steel bars 430 are connected to the wire mesh 200, so as to improve the coordinated anchoring effect of multiple anchor assemblies 400 and ensure the slope protection effect of the slope retaining structure.

[0062] In some embodiments, see Figure 1The plurality of anchor holes 110 are arranged in a rectangular array, and the plurality of anchoring assemblies 400 are arranged in a rectangular array. The plurality of anchoring assemblies 400 are evenly spaced and arranged in a rectangular array, so that the anchoring force is uniform, the anchoring effect is stable, and the appearance is beautiful.

[0063] In some embodiments, see Figure 1 The concrete assembly 500 includes a third concrete layer 530, which is wrapped and connected to the outside of the connecting steel bar 430. The two ends of the third concrete layer 530 are respectively connected to the two second concrete layers 520, and the plurality of third concrete layers 530 are arranged in a grid shape. The third concrete layer 530 is arranged in a grid shape. The grid arrangement can effectively increase the slope stability of the slope base 100. This arrangement can prevent the sliding and sliding of the soil and reduce the risk of landslides. In the rainy season or under the impact of a large amount of water flow, the grid structure can enhance the impact resistance of the slope and prevent the soil from being washed away by the water flow. By arranging a grid structure on the slope base 100, a flat slope surface can be increased and more available space can be provided. The turf 300 is laid in the grid, which can not only enhance the overall aesthetics, but also further consolidate the soil and prevent erosion.

[0064] See also Figure 1 , Figure 2 and Figure 3 The present application provides a method for constructing a slope retaining structure, comprising the following steps:

[0065] S1: Repair the slope surface of the slope base 100, and measure and mark the slope surface of the slope base 100.

[0066] S2: Drill anchor holes 110 at the marked positions of the slope base 100, and dig grout guide grooves between two adjacent anchor holes 110. The multiple anchor holes 110 are arranged in a rectangular array, which ensures the anchoring force while still making the slope structure beautiful in appearance.

[0067] S3: Lay the wire mesh 200 on the slope, insert the folded anchor assembly 400 through the wire mesh 200 into the anchor hole 110, and tap the anchor outer tube 410 to switch the anchor assembly 400 to the unfolded state. The wire mesh 200 can provide additional support, help prevent the movement of soil and rocks, and thus enhance the stability of the slope.

[0068] S4: Use connecting steel bars 430 to connect two adjacent anchoring assemblies 400. The connecting steel bars 430 are located above the grouting groove. A U-shaped steel bar segment is inserted into the grouting groove. The U-shaped steel bar segment passes through the steel mesh 200. The connecting steel bars 430 are located inside the U-shaped steel bar segment. The U-shaped steel bar segment can connect the steel mesh 200 and the connecting steel bars 430. Fix the casting template outside the grouting groove and the anchor hole 110 to reduce the outflow of concrete slurry during the casting process and limit the concrete forming area.

[0069] S6: pouring concrete into the anchor hole 110 to form a second concrete layer 520 , pouring concrete into the inner side of the anchor assembly 400 to form a first concrete layer 510 , and pouring concrete into the grouting groove to form a third concrete layer 530 .

[0070] S7: dismantle the casting formwork and lay the turf 300 in the enclosed space of the plurality of third concrete layers 530 .

[0071] By setting the anchor assembly 400 to anchor the wire mesh 200 on the slope, and laying the turf 300 on the wire mesh 200, the wire mesh 200 can prevent the movement of soil and rocks, thereby enhancing the stability of the slope base 100. Covering the soil and turf 300 above the wire mesh 200 can provide a foundation for vegetation growth, which helps to restore and protect the ecological environment of the slope. Concrete can be poured on the inside and outside of the anchor assembly 400, which has good rigidity and shear strength, strong anchoring force, and good slope protection. When the anchor assembly 400 is in a folded state, the overall diameter is small, which is convenient for inserting into the anchor hole 110. When the anchor assembly 400 is switched to the unfolded state (the anchor assembly 400 in the folded state is inserted into the anchor hole 110, and the anchor outer tube 410 is knocked downward along the axial direction of the anchor outer tube 410), the barb 421 on the anchor inner tube 420 can be unfolded, and the barb 421 abuts against the inner wall of the anchor hole 110. The anchor assembly 400 is not easy to be pulled out of the anchor hole 110, which can increase the anchoring force of the anchor assembly 400. After pouring concrete, the barb 421 can also enhance the strength of the second concrete layer 520.

[0072] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0073] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A slope retaining structure, characterized in that: include: A slope base, wherein the slope base is provided with anchor holes; A steel wire mesh is laid on the slope base; Turf, laid on the steel wire mesh; An anchor assembly, one end of which is installed in the anchor hole, the anchor assembly comprising an anchor outer tube and an anchor inner tube, the anchor outer tube being slidably sleeved on the anchor inner tube, the end of the anchor outer tube exposed from the anchor hole being connected to the wire mesh, the lower end of the anchor inner tube being bent and connected with a plurality of barbs, the anchor assembly having a folded state and an unfolded state, when the anchor assembly is in the folded state, the upper ends of the plurality of barbs are close to the tube wall of the anchor inner tube and the lower end of the anchor outer tube; when the anchor assembly is in the unfolded state, the lower end of the anchor outer tube is close to the lower end of the anchor inner tube, the lower end of the anchor outer tube abuts against a side of the tube wall of the plurality of barbs close to the anchor inner tube, and the upper ends of the plurality of barbs are away from the tube wall of the anchor inner tube and abut against the inner wall of the anchor hole; The concrete assembly comprises a first concrete layer and a second concrete layer, wherein the first concrete layer is arranged inside the anchor assembly, and the second concrete layer is arranged between the anchor assembly and the anchor hole.

2. A slope retaining structure according to claim 1, characterized in that: The anchor outer tube is provided with a plurality of long slot holes, the length direction of the plurality of long slot holes is the axial direction of the anchor outer tube, a spike is protrudingly provided on the inner wall of the upper end of the long slot hole, and a push block is protrudingly provided on the anchor inner tube, and the push block is located in the long slot hole. When the anchor assembly is in a folded state, the push block is located at the lower end of the long slot hole, and the lower end of the spike is close to the tube wall of the anchor outer tube and the push block; when the anchor assembly is in an unfolded state, the push block is located at the upper end of the long slot hole, and the push block abuts against a side of the spike close to the anchor inner tube, the spike is bent and connected to the anchor outer tube, and the lower end of the spike is away from the tube wall of the anchor outer tube and abuts against the inner wall of the anchor hole.

3. A slope retaining structure according to claim 2, characterized in that: The lower end of the spike is provided with a first chamfer, and the push block is provided with a second chamfer for guiding the spike to unfold; The upper end of the barb is provided with a third chamfer, and the lower end of the anchoring outer tube is provided with a fourth chamfer for guiding the barb to unfold.

4. A slope retaining structure according to claim 3, characterized in that: A plurality of the barbs are integrally formed with the anchor inner tube, and a plurality of the spikes are integrally formed with the anchor outer tube.

5. The slope retaining structure according to claim 1, characterized in that: A retaining ring is arranged on the tube wall at the lower end of the anchor outer tube. When the anchor assembly is in an expanded state, the retaining ring abuts against the tube wall side of the plurality of barbs close to the anchor inner tube.

6. The slope retaining structure according to claim 1, characterized in that: A plurality of notched grooves are arranged at the lower end of the anchor inner tube, and a plurality of barbs are connected to the bottom walls of the plurality of notched grooves in a one-to-one correspondence, and the first concrete layer and the second concrete layer are connected at the notched grooves.

7. The slope retaining structure according to claim 1, characterized in that: There are multiple anchor holes and multiple anchor assemblies. An anchor plate is provided at one end of the anchor outer tube exposed from the anchor hole. Multiple connecting holes are provided on the anchor plate. Two adjacent anchor assemblies are connected by connecting steel bars. Both ends of the connecting steel bars are respectively passed through the connecting holes on the two anchor assemblies. The wire mesh is connected to the connecting steel bars.

8. A slope retaining structure according to claim 7, characterized in that: The plurality of anchor holes are arranged in a rectangular array, and the plurality of anchoring assemblies are arranged in a rectangular array.

9. A slope retaining structure according to claim 8, characterized in that: The concrete component includes a third concrete layer, the third concrete layer is wrapped and connected to the outside of the connecting steel bar, two ends of the third concrete layer are respectively connected to two of the second concrete layers, and a plurality of the third concrete layers are arranged in a grid shape.

10. A construction method of a slope retaining structure according to any one of claims 1 to 9, characterized in that: The steps include: S1: Repair the slope surface of the slope base, measure and mark the slope surface of the slope base; S2: Drill anchor holes at the marked positions of the slope base and excavate grouting grooves between two adjacent anchor holes; S3: laying a wire mesh on the slope, inserting the anchor assembly in a folded state through the wire mesh into the anchor hole, and knocking the anchor outer tube to switch the anchor assembly to an unfolded state; S4: Use connecting steel bars to connect two adjacent anchoring components. The connecting steel bars are located above the grouting groove. Use a U-shaped steel bar segment to insert into the grouting groove. The U-shaped steel bar segment passes through the wire mesh. The connecting steel bar is located inside the U-shaped steel bar segment. Fix the casting template outside the grouting groove and the anchor hole. S5: pouring concrete into the anchor hole to form a second concrete layer, pouring concrete into the inner side of the anchor assembly to form a first concrete layer, and pouring concrete into the grouting groove to form a third concrete layer; S6: Remove the casting formwork and lay turf in the enclosed space of multiple third concrete layers.

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