Slope retaining structure and construction method

Abstract

This invention discloses a slope retaining structure and construction method, belonging to the field of slope protection. The slope retaining structure includes a slope base, wire mesh, turf, anchoring components, and concrete components. Anchor holes are provided in the slope base. The wire mesh is laid on the slope base, and the turf is laid on the wire mesh. The anchoring components include an outer anchoring tube and an inner anchoring tube. The lower end of the inner anchoring tube is bent and connected with multiple barbs. When the anchoring component is in a folded state, the upper ends of the multiple barbs are close to the tube wall of the inner anchoring tube and the lower end of the outer anchoring tube. When the anchoring component is in an unfolded state, the lower end of the outer anchoring tube abuts against the side of the multiple barbs near the tube wall of the inner anchoring tube, and the upper ends of the multiple barbs are away from the tube wall of the inner anchoring tube and abut against the inner wall of the anchor holes. The concrete components are located on the inner and outer sides of the anchoring components. The anchoring components of this embodiment have good rigidity and shear strength, strong anchoring force, and good slope protection.

Description

Technical Field

[0001] This invention relates to the field of slope protection technology, and in particular to a slope retaining structure and construction method. Background Technology

[0002] Slope retaining structures are mainly used in engineering projects in mountainous areas, rivers, highways, and railways, especially in areas with steep slopes, complex geological conditions, or potential landslide risks. They are primarily used to reinforce forces perpendicular to the slope surface, thereby enhancing the slope's bearing capacity and preventing slope instability and disasters. One type of slope retaining structure significantly improves slope stability by constructing connecting reinforced concrete or prestressed concrete beams on the slope and combining them with anchor cables anchored in the soil. However, prestressed anchor cables are used; these are relatively thin, have poor bending resistance, weak anchoring force, and offer poor slope protection. Summary of the Invention

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

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

[0005] The slope base has anchor holes.

[0006] Wire mesh is laid on the slope base;

[0007] Turf is laid on the wire mesh;

[0008] An anchoring assembly, one end of which is installed inside the anchor hole, includes an outer anchoring tube and an inner anchoring tube. The outer anchoring tube is slidably sleeved on the inner anchoring tube. The end of the outer anchoring tube protruding from the anchor hole is connected to the wire mesh. The lower end of the inner anchoring tube is bent and connected with multiple barbs. The anchoring assembly has a folded state and an unfolded state. When the anchoring assembly is in the folded state, the upper ends of the multiple barbs are close to the tube wall of the inner anchoring tube and the lower end of the outer anchoring tube. When the anchoring assembly is in the unfolded state, the lower end of the outer anchoring tube is close to the lower end of the inner anchoring tube, and the lower end of the outer anchoring tube abuts against the side of the multiple barbs close to the tube wall of the inner anchoring tube. The upper ends of the multiple barbs are away from the tube wall of the inner anchoring tube and abut against the inner wall of the anchor hole.

[0009] A concrete component includes a first concrete layer and a second concrete layer, wherein the first concrete layer is disposed inside the anchoring component and the second concrete layer is disposed between the anchoring component 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 anchoring wire mesh to the slope using anchoring components and laying turf on top, the wire mesh prevents the movement of soil and rocks, thus enhancing the stability of the slope base. Covering the wire mesh with soil and turf provides a foundation for vegetation growth, contributing to the restoration and protection of the slope's ecological environment. Concrete can be poured on both the inner and outer sides of the anchoring components, providing good rigidity and shear strength, strong anchoring force, and good slope protection. When the anchoring components are folded, their overall diameter is small, facilitating insertion into the anchor holes. When switched to the unfolded state, the barbs on the inner anchor tube unfold and abut against the inner wall of the anchor hole, making it difficult for the anchoring components to be pulled out, increasing the anchoring force. After pouring concrete, the barbs also enhance the strength of the second concrete layer.

[0012] According to some embodiments of the present invention, the outer anchor tube is provided with a plurality of elongated slots, the length direction of the plurality of elongated slots being the axial direction of the outer anchor tube, and a spike protruding from the upper inner wall of the elongated slot, and a push block protruding from the inner anchor tube, the push block being located inside the elongated slot. When the anchor assembly is in a folded state, the push block is located at the lower end of the elongated slot, and the lower end of the spike is close to the tube wall of the outer anchor 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 elongated slot, the push block abuts against the side of the spike close to the inner anchor tube, the spike is bent and connected to the outer anchor tube, and the lower end of the spike is away from the tube wall of the outer anchor 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, a plurality of the barbs are integrally formed with the inner anchor tube, and a plurality of the spikes are integrally formed with the outer anchor tube.

[0016] According to some embodiments of the present invention, a retaining ring is provided on the lower end of the outer anchor tube. When the anchoring assembly is in the deployed state, the retaining ring abuts against the side of the wall of the plurality of barbs near the inner anchor tube.

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

[0018] According to some embodiments of the present invention, multiple anchor holes are provided, multiple anchoring components are provided, an anchoring plate is provided at one end of the anchoring outer tube that protrudes from the anchor hole, multiple connecting holes are provided on the anchoring plate, two adjacent anchoring components are connected by connecting steel bars, the two ends of the connecting steel bars are respectively passed through the connecting holes on the two anchoring components, 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 components are arranged in a rectangular array.

[0020] According to some embodiments of the present invention, the concrete component includes a third concrete layer that wraps around and connects to the outside of the connecting steel bar, and two second concrete layers are respectively connected to both ends of the third concrete layer, and the plurality of third concrete layers are arranged in a grid pattern.

[0021] A construction method for a slope retaining structure includes 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 locations on the slope substrate, and excavate grout guide trenches between adjacent anchor holes;

[0024] S3: Lay wire mesh on the slope, insert the folded anchoring assembly through the wire mesh into the anchor hole, and tap the outer anchoring tube to switch the anchoring assembly to the unfolded state.

[0025] S4: Use connecting steel bars to connect two adjacent anchoring components. The connecting steel bars are located above the grouting channel. Use U-shaped steel bar segments to insert into the grouting channel. The U-shaped steel bar segments pass through the wire mesh. The connecting steel bars are located inside the U-shaped steel bar segments. Fix the pouring template outside the grouting channel and the anchor hole.

[0026] S5: Pour concrete into the anchor hole to form a second concrete layer, pour concrete into the inside of the anchoring component to form a first concrete layer, and pour concrete into the grout channel to form a third concrete layer.

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

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

[0029] By anchoring wire mesh to the slope using anchoring components and laying turf on top, the wire mesh prevents the movement of soil and rocks, thus enhancing the stability of the slope base. Covering the wire mesh with soil and turf provides a foundation for vegetation growth, contributing to the restoration and protection of the slope's ecological environment. Concrete can be poured on both the inner and outer sides of the anchoring components, providing good rigidity and shear strength, strong anchoring force, and good slope protection. When the anchoring components are folded, their overall diameter is small, facilitating insertion into the anchor holes. When switched to the unfolded state, the barbs on the inner anchor tube unfold and abut against the inner wall of the anchor hole, making it difficult for the anchoring components to be pulled out, increasing the anchoring force. After pouring concrete, the barbs 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. Attached Figure Description

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

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

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

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

[0035] Figure 4 This is a schematic diagram of the anchoring component in the slope retaining structure of this invention when it is in a folded state.

[0036] Figure 5 This is a schematic diagram of the anchoring components in the slope retaining structure of an embodiment of the present invention when they are in the deployed state.

[0037] Figure 6 This is a schematic diagram of the structure in which multiple anchoring components are connected in the slope retaining structure according to an embodiment of the present invention;

[0038] Figure 7 This is a schematic diagram of the anchoring outer pipe of the slope support structure according to an embodiment of the present invention;

[0039] Figure 8 This is a schematic diagram of the anchoring inner tube of the slope support structure according to an embodiment of the present invention.

[0040] Icon labels:

[0041] 100. Slope base; 110. Anchor holes;

[0042] 200. Steel wire mesh;

[0043] 300. Turf;

[0044] 400. Anchoring component; 410. Anchoring outer tube; 411. Long slot; 412. Spike; 413. Retaining ring; 4131. Fourth chamfer; 414. Anchoring plate; 4141. Connecting hole; 420. Anchoring inner tube; 421. Barb; 422. Push block; 4221. Second chamfer; 423. Notch; 430. Connecting reinforcement;

[0045] 500, Concrete component; 510, First concrete layer; 520, Second concrete layer; 530, Third concrete layer. Detailed Implementation

[0046] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0047] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0048] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0049] Please see Figure 1 , Figure 2 and Figure 3 According to an embodiment of the present invention, a slope support structure includes a slope base 100, a wire mesh 200, turf 300, an anchoring component 400, and a concrete component 500. Anchor holes 110 are 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 component 400 is installed in the anchor hole 110. The anchoring component 400 includes an outer anchoring tube 410 and an inner anchoring tube 420. The outer anchoring tube 410 is slidably sleeved on the inner anchoring tube 420. The end of the outer anchoring tube 410 protruding from the anchor hole 110 is connected to the wire mesh 200. The lower end of the inner anchoring tube 420 is bent and connected with multiple barbs 421. The anchoring component 400 has a folded state and an unfolded state. When the anchoring component 400 is in the folded state, refer to... Figure 4 The upper ends of the multiple barbs 421 are close to the wall of the inner anchor tube 420 and the lower end of the outer anchor tube 410; when the anchoring assembly 400 is in the deployed state, see [reference needed]. Figure 5 The lower end of the outer anchoring tube 410 is close to the lower end of the inner anchoring tube 420. The lower end of the outer anchoring tube 410 abuts against the side of the multiple barbs 421 near the wall of the inner anchoring tube 420. The upper ends of the multiple barbs 421 are away from the wall of the inner anchoring tube 420 and abut against the inner wall of the anchor hole 110. The concrete component 500 includes a first concrete layer 510 and a second concrete layer 520. The first concrete layer 510 is located inside the anchoring component 400, and the second concrete layer 520 is located between the anchoring component 400 and the anchor hole 110.

[0050] The wire mesh 200 is anchored to the slope by setting anchoring components 400, and turf 300 is laid on top of 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 wire mesh 200 with soil and turf 300 provides a base for vegetation growth, which helps to restore and protect the ecological environment of the slope. Concrete can be poured on both the inner and outer sides of the anchoring components 400, which has good rigidity and shear strength, strong anchoring force, and good slope protection. When the anchoring component 400 is in the folded state, its overall diameter is small, making it easy to insert into the anchor hole 110. When the anchoring component 400 is switched to the unfolded state (the anchoring component 400 in the folded state is inserted into the anchor hole 110, and the anchoring outer tube 410 is tapped downward along the axial direction of the anchoring outer tube 410), the barb 421 on the anchoring inner tube 420 can be unfolded. The barb 421 abuts against the inner wall of the anchor hole 110, making it difficult for the anchoring component 400 to be pulled out of the anchor hole 110, which can increase the anchoring force of the anchoring component 400. After the concrete is poured, the barb 421 can also enhance the strength of the second concrete layer 520.

[0051] In some embodiments, see Figure 7 and Figure 8The outer anchoring tube 410 has multiple elongated slots 411, the length of which is axial with the outer anchoring tube 410. Spikes 412 protrude from the upper inner wall of each slot. A pusher block 422 protrudes from the inner anchoring tube 420 and is welded to it, located within the elongated slots 411. When the anchoring assembly 400 is in a folded state, refer to... Figure 4 The push block 422 is located at the lower end of the long slot 411, and the lower end of the spike 412 is close to the wall of the anchoring outer tube 410 and the push block 422; when the anchoring assembly 400 is in the deployed state, see [reference]. Figure 5 The push block 422 is located at the upper end of the long slot 411. The push block 422 abuts against the side of the spike 412 near the inner anchor tube 420. The spike 412 is bent and connected to the outer anchor tube 410. The lower end of the spike 412 is away from the wall of the outer anchor tube 410 and abuts against the inner wall of the anchor hole 110.

[0052] When folded, the anchoring component 400 has a smaller overall diameter, facilitating insertion into the anchor hole 110. By striking the outer anchoring tube 410 axially, the outer anchoring tube 410 slides relative to the inner anchoring tube 420 along its axial direction. The push block 422 remains in the same position on the inner anchoring tube 420. The push block 422 moves from the lower end of the long slot 411 to the upper end, pushing the spike 412 outwards so that its end abuts against the inner wall of the anchor hole 110. This increases the anchoring force of the anchoring component 400. After concrete is poured, the outward-facing spike 412 further enhances 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. The second chamfer 4221 is used to guide the spike 412 to unfold. The upper end of the barb 421 is provided with a third chamfer, and the lower end of the anchoring outer tube 410 is provided with a fourth chamfer 4131. The fourth chamfer 4131 is used to guide the barb 421 to unfold.

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

[0055] In some embodiments, see Figure 7 and Figure 8 Multiple barbs 421 are integrally formed with the inner anchor tube 420, and multiple spikes 412 are integrally formed with the outer anchor tube 410. The integral formation of the barbs 421 with the inner anchor tube 420 ensures the connection strength between the barbs 421 and the inner anchor tube 420. The integral formation of the spikes 412 with the outer anchor tube 410 ensures the connection strength between the spikes 412 and the outer anchor tube 410.

[0056] A barb 421 is cut directly at the lower end of the anchoring 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 anchoring inner tube 420, so that the anchoring inner tube 420 is in a folded state. This is convenient to process and has low processing cost.

[0057] Two parallel straight cuts are cut on the wall of the anchoring outer tube 410, and the lower part between the two straight cuts is cut off to form a long slot 411. The upper part between the two straight cuts forms a spike 412. The lower part between the two straight cuts is left open to facilitate the insertion of the push block 422. The processing is convenient and the processing cost is low.

[0058] In some embodiments, see Figure 7 and Figure 8A retaining ring 413 is provided on the lower end of the outer anchor tube 410. When the anchoring assembly 400 is in the unfolded state, the retaining ring 413 abuts against the side of the wall of the multiple barbs 421 near the inner anchor tube 420. The lower end of the retaining ring 413 is chamfered. The retaining ring 413 increases the wall thickness at the retaining ring 413. When the anchoring assembly 400 is inserted into the anchor hole 110 in the folded state, the outer anchor tube 410 is struck along the axial direction of the outer anchor tube 410. The outer anchor tube 410 slides relative to the inner anchor tube 420 along the axial direction of the outer anchor tube 410. The retaining ring 413 pushes the barbs 421 to flip outward. The large wall thickness at the retaining ring 413 can provide sufficient thrust to ensure that the barbs 421 can flip outward smoothly 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 anchoring inner tube 420 is provided with multiple notches 423, and multiple barbs 421 are connected one-to-one to the bottom wall of the multiple notches 423. The first concrete layer 510 and the second concrete layer 520 are connected at the notches 423. The barbs 421 are directly cut at the lower end of the anchoring 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 tube wall of the anchoring inner tube 420, so that the anchoring inner tube 420 is in a folded state, which is convenient and low in processing cost. The notches 423 connect the inner and outer sides of the anchoring component 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 component 500, thereby enhancing the anchoring force of the anchoring component 400.

[0060] In some embodiments, see Figure 1 and Figure 6 Multiple anchor holes 110 and multiple anchoring components 400 are provided. An anchoring plate 414 is provided at one end of the anchoring outer tube 410 that protrudes from the anchor hole 110. Multiple connecting holes 4141 are provided on the anchoring plate 414. Two adjacent anchoring components 400 are connected by connecting steel bars 430. The two ends of the connecting steel bars 430 are respectively passed through the connecting holes 4141 on the two anchoring components 400. The wire mesh 200 is connected to the connecting steel bars 430.

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

[0062] In some embodiments, see Figure 1Multiple anchor holes 110 are arranged in a rectangular array, and multiple anchoring components 400 are also arranged in a rectangular array. The multiple anchoring components 400 are evenly spaced and arranged in a rectangular array, which makes the anchoring force uniform, the anchoring effect stable, and the appearance aesthetically pleasing.

[0063] In some embodiments, see Figure 1 The concrete component 500 includes a third concrete layer 530, which wraps around and connects to the outside of the connecting steel bars 430. Two second concrete layers 520 are connected to each end of the third concrete layer 530, and the multiple third concrete layers 530 are arranged in a grid pattern. This grid arrangement of the third concrete layers 530 effectively increases the slope stability of the slope base 100, preventing soil sliding and reducing the risk of landslides. During the rainy season or under heavy water flow, the grid structure enhances the slope's impact resistance and prevents soil erosion. By setting a grid structure on the slope base 100, a smoother slope surface can be created, providing more usable space. Laying turf 300 within the grid not only enhances the overall aesthetics but also further consolidates the soil and prevents erosion.

[0064] See Figure 1 , Figure 2 and Figure 3 This application provides a construction method for a slope retaining structure, including 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 locations on the slope base 100, and excavate grout guide grooves between adjacent anchor holes 110. Multiple anchor holes 110 are arranged in a rectangular array to ensure anchoring force while maintaining the aesthetic appearance of the slope structure.

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

[0068] S4: Connect two adjacent anchoring components 400 using connecting steel bars 430. Connecting steel bars 430 are positioned above the grout channel. A U-shaped steel bar segment is inserted into the grout channel, passing through the wire mesh 200. The connecting steel bar 430 is located inside the U-shaped steel bar segment, which connects the wire mesh 200 and the connecting steel bar 430. Fix the pouring template outside the grout channel and anchor hole 110 to reduce concrete grout leakage during pouring and limit the concrete forming area.

[0069] S6: Pour concrete into the anchor hole 110 to form a second concrete layer 520, pour concrete into the inside of the anchoring component 400 to form a first concrete layer 510, and pour concrete into the grout channel to form a third concrete layer 530.

[0070] S7: Remove the pouring formwork and lay turf 300 in the enclosed space of multiple third concrete layers 530.

[0071] The wire mesh 200 is anchored to the slope by setting anchoring components 400, and turf 300 is laid on top of 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 wire mesh 200 with soil and turf 300 provides a base for vegetation growth, which helps to restore and protect the ecological environment of the slope. Concrete can be poured on both the inner and outer sides of the anchoring components 400, which has good rigidity and shear strength, strong anchoring force, and good slope protection. When the anchoring component 400 is in the folded state, its overall diameter is small, making it easy to insert into the anchor hole 110. When the anchoring component 400 is switched to the unfolded state (the anchoring component 400 in the folded state is inserted into the anchor hole 110, and the anchoring outer tube 410 is tapped downward along the axial direction of the anchoring outer tube 410), the barb 421 on the anchoring inner tube 420 can be unfolded. The barb 421 abuts against the inner wall of the anchor hole 110, making it difficult for the anchoring component 400 to be pulled out of the anchor hole 110, which can increase the anchoring force of the anchoring component 400. After the concrete is poured, the barb 421 can also enhance the strength of the second concrete layer 520.

[0072] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

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

Claims

1. A slope retaining structure, characterized in that, include: The slope base has anchor holes. Wire mesh is laid on the slope base; Turf is laid on the wire mesh; An anchoring assembly, one end of which is installed inside the anchor hole, includes an outer anchoring tube and an inner anchoring tube. The outer anchoring tube is slidably sleeved on the inner anchoring tube. The end of the outer anchoring tube protruding from the anchor hole is connected to the wire mesh. The lower end of the inner anchoring tube is bent and connected with multiple barbs. The anchoring assembly has a folded state and an unfolded state. When the anchoring assembly is in the folded state, the upper ends of the multiple barbs are close to the tube wall of the inner anchoring tube and the lower end of the outer anchoring tube. When the anchoring assembly is in the unfolded state, the lower end of the outer anchoring tube is close to the lower end of the inner anchoring tube, and the lower end of the outer anchoring tube abuts against the side of the multiple barbs close to the tube wall of the inner anchoring tube. The upper ends of the multiple barbs are away from the tube wall of the inner anchoring tube and abut against the inner wall of the anchor hole. A concrete component includes a first concrete layer and a second concrete layer, wherein the first concrete layer is disposed inside the anchoring component and the second concrete layer is disposed between the anchoring component and the anchor hole.

2. The slope retaining structure according to claim 1, characterized in that, The outer anchor tube has multiple elongated slots, the length of which is axially aligned with the outer anchor tube. A spike protrudes from the inner wall of the upper end of each slot, and a push block protrudes from the inner anchor tube. The push block is located within the elongated slot. When the anchor assembly is folded, the push block is located at the lower end of the elongated slot, with the lower end of the spike close to the wall of the outer anchor tube and the push block. When the anchor assembly is unfolded, the push block is located at the upper end of the elongated slot, abutting against the spike near the inner anchor tube. The spike is bent and connected to the outer anchor tube, with its lower end away from the wall of the outer anchor tube and abutting against the inner wall of the anchor hole.

3. The 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. The slope retaining structure according to claim 3, characterized in that, The multiple barbs are integrally formed with the inner anchor tube, and the multiple spikes are integrally formed with the outer anchor tube.

5. A slope retaining structure according to claim 1, characterized in that, A retaining ring is provided on the lower end of the outer anchor tube. When the anchoring assembly is in the deployed state, the retaining ring abuts against the side of the wall of the multiple barbs near the inner anchor tube.

6. A slope retaining structure according to claim 1, characterized in that, The lower end of the anchoring inner tube is provided with multiple notches and grooves, and multiple barbs are connected one-to-one to the bottom wall of the multiple notches and grooves. The first concrete layer and the second concrete layer are connected at the notches and grooves.

7. A slope retaining structure according to claim 1, characterized in that, The anchor holes are provided in multiple ways, the anchoring components are provided in multiple ways, and the end of the anchoring outer tube that protrudes from the anchor hole is provided with an anchoring plate. The anchoring plate is provided with multiple connecting holes. Two adjacent anchoring components are connected by connecting steel bars. The two ends of the connecting steel bars are respectively inserted into the connecting holes on the two anchoring components. 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 components 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 that wraps around and connects to the outside of the connecting steel bars. Two second concrete layers are connected to each end of the third concrete layer, and the plurality of third concrete layers are arranged in a grid pattern.

10. A construction method for a slope retaining structure as described in any one of claims 1-9, characterized in that, Includes the following steps: 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 locations on the slope substrate, and excavate grout guide trenches between adjacent anchor holes; S3: Lay wire mesh on the slope, insert the folded anchoring assembly through the wire mesh into the anchor hole, and tap the outer anchoring tube to switch the anchoring assembly to the unfolded state. S4: Use connecting steel bars to connect two adjacent anchoring components. The connecting steel bars are located above the grouting channel. Use U-shaped steel bar segments to insert into the grouting channel. The U-shaped steel bar segments pass through the wire mesh. The connecting steel bars are located inside the U-shaped steel bar segments. Fix the pouring template outside the grouting channel and the anchor hole. S5: Pour concrete into the anchor hole to form a second concrete layer, pour concrete into the inside of the anchoring component to form a first concrete layer, and pour concrete into the grout channel to form a third concrete layer. S6: Remove the pouring formwork and lay turf in the enclosed space of multiple third concrete layers.

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