Slope supporting and reinforcing structure and construction method

Abstract

The invention relates to the technical field of manufacturing processes, and provides a slope supporting and reinforcing construction method which comprises the following steps: S1, straightening a blank for the first time to enable the straightness of the blank to be less than or equal to 0.2; s2, roughly turning the blank to enable the blank to reach a design drawing standard; s3, quenching and tempering heat treatment is conducted on the rough-turned blank till the HRC is 38-42; s4, the blank is straightened for the second time, and the straightness of the blank is smaller than or equal to 0.2; s5, the blank is ground, specifically, the blank is ground to form a central spindle, and the allowance of the two sides of the outer circle of the central spindle is 0.35-0.45; s6, the blank is straightened for the third time, and the straightness of the blank is smaller than or equal to 0.2; s7, roughly and finely rolling the spline A on the mandrel to enable the spline A to reach the design drawing standard; s8, the outer surface of the spline A is subjected to laser quenching, so that the tooth surface hardness of the spline A is HRC45-50, the quenching depth is 0.6-1 mm, and tooth surface deformation is controlled within 0.1 in the tooth surface length direction; s9, laser quenching is conducted on the surface of the outer circle of the mandrel, so that the surface hardness of the mandrel is HRC 50-55, and the quenching depth is 1.2-1.5 mm; and S10, cooling treatment of the mandrel.

Description

Technical Field

[0001] The invention relates to the technical field of foundation pit slope construction, and in particular to a slope support reinforcement structure and a construction method. Background Art

[0002] Slope protection is one of the important areas in construction, especially in the process of land development, road construction and infrastructure construction, slope support and reinforcement are often required. The stability of the slope is of great significance to ensure project safety, reduce geological disasters and protect the ecological environment.

[0003] Among the traditional slope support methods, soil nail wall is a common and effective structural form. It installs soil nails on the slope and combines them with materials such as hanging mesh and shotcrete to improve the shear strength and overall stability of the soil. However, there are some problems with the anchor end structure of the traditional soil nail wall.

[0004] First, the steel bar welding strength of the anchoring end of the traditional soil nail wall is limited, which is prone to produce weaknesses and affect the anchoring effect of the soil nails. Second, the force on the anchoring end of the traditional soil nail wall is concentrated on a few anchoring points, which is easy to cause excessive local pressure and affect the stability of the entire slope. Summary of the invention

[0005] In view of the defects in the prior art, the object of the present invention is to provide a slope support reinforcement structure and a construction method, which can greatly improve the stability of the slope.

[0006] In order to achieve the above-mentioned object, according to a first aspect of the present invention, a slope support reinforcement structure is disclosed, which is installed on a slope, and a water channel is provided below the slope, and comprises a support plate, and a plurality of vegetation grooves and limit grooves are respectively provided on the support plate, and the plurality of vegetation grooves and the plurality of limit grooves are arranged alternately on the support plate in sequence;

[0007] Plants are planted in the vegetation groove, a U-shaped rod is arranged in the limiting groove, two ends of the U-shaped rod are respectively inserted into the slope, an anchor sprayed steel mesh is tied on the U-shaped rod, and a concrete layer is arranged in the limiting groove.

[0008] Furthermore, guide grooves extending in the longitudinal direction are formed inside the two sides of the support plate, and a water outlet hole connected to the guide groove is opened at the bottom of the support plate;

[0009] The top of the support plate is provided with a plurality of water collecting grooves extending in the transverse direction, the plurality of water collecting grooves are arranged at intervals, the two ends of the water collecting grooves are respectively connected with the two guide grooves, and a filter screen is fixedly installed on the top of the inner wall of the water collecting groove.

[0010] Furthermore, a threaded hole is opened at the bottom of the support plate, and a baffle is arranged at the lower end of the support plate. The baffle is rotatably connected to the support plate, and a concave groove is formed between the baffle and the support plate. A screw is arranged on the baffle, and the threaded end of the screw passes through the baffle and is threadedly connected to the threaded hole.

[0011] Furthermore, a plurality of extension holes are formed on the inner wall of the limiting groove.

[0012] Furthermore, the U-shaped rod comprises two soil nails, the first ends of the two soil nails are inserted into the soil slope, and the second ends of the two soil nails are bent and welded together to form the U-shaped rod.

[0013] According to a second aspect of the present invention, a slope support reinforcement construction method is disclosed, comprising the following steps:

[0014] S1. inserting a plurality of U-shaped rods on the soil slope according to the specifications and installation positions of the supporting plates;

[0015] S2, placing the support plate on the soil slope, wherein the plurality of U-shaped rods are respectively located in the plurality of limiting grooves;

[0016] S3, tying the anchor sprayed steel mesh on the U-shaped rod, and anchor spraying concrete into the limiting groove to form a concrete layer;

[0017] S4. Planting plants in the vegetation trough.

[0018] Furthermore, it also includes:

[0019] S5. Thread the baffle plate and the lower end of the support plate to form a concave groove between the baffle plate and the support plate. When the outer side of the baffle plate contacts the top of the outer side of the canal, the outer side of the baffle plate is located below the support plate.

[0020] Furthermore, in step S3, an extension hole is firstly opened on the inner wall of the limiting groove.

[0021] Beneficial effects: The present invention provides a slope support reinforcement structure and construction method. On the one hand, by tying an anchor sprayed steel mesh on a U-shaped rod and anchor spraying concrete into a limiting groove, the overall strength and stability of the support plate can be improved; on the other hand, by planting plants in the vegetation groove and inserting the roots of the plants into the slope, soil erosion on the slope can be further prevented, thereby further improving the stability of the slope. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2It is a schematic diagram of the three-dimensional structure of the support plate and the baffle;

[0024] Figure 3 A schematic diagram of the three-dimensional structure of the support plate.

[0025] Figure numerals: 10-slope, 20-channel, 30-support plate, 31-vegetation trough, 32-limiting groove, 33-water collecting trough, 34-filter screen, 35-water outlet, 36-threaded hole, 40-baffle, 41-screw, 50-soil nail. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0027] like Figure 1-3 As shown, the present invention provides a slope support reinforcement structure, which is installed on a slope 10, and there is a water channel 20 below the slope 10. The structure includes a support plate 30, and a plurality of vegetation grooves 31 and a plurality of limiting grooves 32 are respectively opened on the support plate 30, and the plurality of vegetation grooves 31 and the plurality of limiting grooves 32 are alternately arranged on the support plate 30 in sequence.

[0028] Plants are planted in the vegetation groove 31, and the roots of the plants will be inserted into the soil of the slope 10 when growing. A U-shaped rod is arranged in the limiting groove 32, and the two ends of the U-shaped rod are respectively inserted into the slope 10. An anchor sprayed steel mesh is tied on the U-shaped rod, and concrete is anchored and sprayed in the limiting groove 32 to form a concrete layer. The anchor sprayed steel mesh is woven with high-strength steel wire.

[0029] On the one hand, this structure can improve the overall strength and stability of the support plate 30 by tying the anchor sprayed steel mesh on the U-shaped rod and anchor spraying concrete into the limit groove 32 to form a concrete layer. On the other hand, by planting plants in the vegetation groove 31 and using the root system of the plants to insert into the slope 10, it can further prevent soil erosion on the slope 10 and further improve the stability of the slope 10.

[0030] In one embodiment, guide grooves extending in the longitudinal direction are formed inside both sides of the supporting plate 30 , and a water outlet hole 35 communicating with the guide groove is formed at the bottom of the supporting plate 30 .

[0031] The top of the support plate 30 is provided with a plurality of water collecting grooves 33 extending in the transverse direction. The plurality of water collecting grooves 33 are arranged at intervals. Both ends of the water collecting grooves 33 are respectively connected to two guide grooves. A filter screen 34 is fixedly installed on the top of the inner wall of the water collecting groove 33 .

[0032] When it rains, rainwater flows from top to bottom on the slope 10, and multiple intervally arranged water collection grooves 33 can absorb rainwater above them respectively. The rainwater passes through the water collection grooves 33 and the diversion grooves, and finally flows out of the water outlet 35 into the water channel 20. This design can disperse and absorb rainwater, on the one hand, to prevent rainwater from accumulating together to form strong energy and then hitting the building facilities under the slope 10; on the other hand, it prevents excessive rainwater from contacting the soil of the slope 10, reducing soil erosion.

[0033] In one embodiment, a threaded hole 36 is formed at the bottom of the support plate 30. A baffle 40 is provided at the lower end of the support plate 30, and the baffle 40 is rotatably connected to the support plate 30, and a concave groove is formed between the baffle 40 and the support plate 30. A screw 41 is provided on the baffle 40, and the threaded end of the screw 41 passes through the baffle 40 and is threadedly connected to the threaded hole 36.

[0034] In the initial state, the threaded end of the screw 41 is matched with the threaded hole 36 , and the baffle plate 40 is fixed on the supporting plate 30 , and a concave groove is formed between the baffle plate 40 and the supporting plate 30 .

[0035] When it rains, the concave groove can intercept loose soil and gravel, preventing the soil and gravel from flowing into the canal 20 and blocking the canal 20, making it difficult to clean, and preventing the soil and gravel from hitting the building facilities below the slope 10.

[0036] After the rain stops, the staff can loosen the screw 41, and the outer side of the baffle 40 will contact the top of the outer side of the water channel 20. At this time, there is an obtuse angle between the baffle 40 and the supporting plate 30, and the mud and gravel will flow down, making it convenient for the staff to clean it up with the engineering vehicle. Otherwise, the mud and gravel will accumulate in the concave groove, making it difficult for the engineering vehicle to work.

[0037] In one embodiment, a plurality of extension holes are formed on the inner wall of the limiting groove 32. When concrete is sprayed in the limiting groove 32, the concrete will enter the plurality of extension holes, thereby strengthening the connection force between the supporting plate 30 and the slope 10, and further improving the stability of the structure.

[0038] In one embodiment, the U-shaped rod includes two soil nails 50 , the first ends of the two soil nails 50 are inserted into the soil slope, and the second ends of the two soil nails 50 are bent and welded together to form a U-shaped rod.

[0039] A slope support reinforcement construction method comprises the following steps:

[0040] S1. Based on the design plan, according to the specifications and installation position of the support plate 30, a plurality of U-shaped rods are inserted at appropriate positions on the soil slope, with the curved parts of the U-shaped rods facing upwards.

[0041] S2, placing the support plate 30 on the soil slope, wherein the plurality of U-shaped rods are respectively located in the plurality of limiting grooves 32. The plurality of U-shaped rods and the plurality of limiting grooves 32 are arranged in a one-to-one correspondence.

[0042] S3. Anchor sprayed steel mesh is tied on the U-shaped rod to improve the overall strength and stability of the structure. Anchor sprayed concrete is poured into the limit groove 32 to form a concrete layer, thereby strengthening the connection between the support plate 30 and the slope 10 and further improving the stability of the structure.

[0043] During the anchor spraying process, attention should be paid to uniform coverage, and multiple spraying should be carried out as needed to achieve the designed thickness.

[0044] After the concrete layer is fully cured, the entire structure is inspected to ensure its stability and integrity. At the same time, surface treatments such as spraying waterproof layers and decorative layers can be performed.

[0045] S4, planting plants in the vegetation groove 31. By using the root system of the plants to be inserted into the slope 10, it is possible to further prevent the slope 10 from soil erosion and further improve the stability of the slope 10.

[0046] In one embodiment, it further includes:

[0047] S5. Thread the baffle 40 and the lower end of the support plate 30 to form a concave groove between the baffle 40 and the support plate 30. When the outer side of the baffle 40 contacts the top of the outer side of the canal 20, the outer side of the baffle 40 is located below the support plate 30.

[0048] In one embodiment, in step S3, an extension hole is firstly opened on the inner wall of the limiting groove 32. When anchoring concrete in the limiting groove 32, the concrete will enter into the multiple extension holes, thereby strengthening the connection force between the supporting plate 30 and the slope 10, and further improving the stability of the structure.

[0049] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

[0050] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A slope support and reinforcement structure, installed on a slope, with a water channel below the slope, characterized in that: It comprises a supporting plate, wherein a plurality of penetrating vegetation grooves and limiting grooves are respectively opened on the supporting plate, and the plurality of vegetation grooves and the plurality of limiting grooves are alternately arranged on the supporting plate in sequence; Plants are planted in the vegetation groove, a U-shaped rod is arranged in the limiting groove, two ends of the U-shaped rod are respectively inserted into the slope, an anchor sprayed steel mesh is tied on the U-shaped rod, and a concrete layer is arranged in the limiting groove.

2. A slope support reinforcement structure according to claim 1, characterized in that: The inner sides of the supporting plate are formed with guide grooves extending in the longitudinal direction, and the bottom of the supporting plate is provided with a water outlet hole connected with the guide groove; The top of the support plate is provided with a plurality of water collecting grooves extending in the transverse direction, the plurality of water collecting grooves are arranged at intervals, the two ends of the water collecting grooves are respectively connected with the two guide grooves, and a filter screen is fixedly installed on the top of the inner wall of the water collecting groove.

3. A slope support reinforcement structure according to claim 2, characterized in that: A threaded hole is opened at the bottom of the support plate, and a baffle is arranged at the lower end of the support plate. The baffle is rotatably connected to the support plate, and a concave groove is formed between the baffle and the support plate. A screw is arranged on the baffle, and the threaded end of the screw passes through the baffle and is threadedly connected to the threaded hole.

4. A slope support reinforcement structure according to claim 3, characterized in that: A plurality of extension holes are formed on the inner wall of the limiting groove.

5. A slope support reinforcement structure according to claim 4, characterized in that: The U-shaped rod comprises two soil nails, the first ends of the two soil nails are inserted into the soil slope, and the second ends of the two soil nails are bent and welded together to form the U-shaped rod.

6. A slope support and reinforcement construction method, applied to the slope support and reinforcement structure described in claim 5, characterized in that: The following steps are involved: S1. inserting a plurality of U-shaped rods on the soil slope according to the specifications and installation positions of the supporting plates; S2, placing the support plate on the soil slope, wherein the plurality of U-shaped rods are respectively located in the plurality of limiting grooves; S3, tying the anchor sprayed steel mesh on the U-shaped rod, and anchor spraying concrete into the limiting groove to form a concrete layer; S4. Planting plants in the vegetation trough.

7. A slope support and reinforcement construction method according to claim 5, characterized in that: Also includes: S5. Thread the baffle plate and the lower end of the support plate to form a concave groove between the baffle plate and the support plate. When the outer side of the baffle plate contacts the top of the outer side of the canal, the outer side of the baffle plate is located below the support plate.

8. A slope support and reinforcement construction method according to claim 5, characterized in that: In step S3, an extension hole is firstly opened on the inner wall of the limiting groove.

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