An assembled flexible shaped slope protection applied to temporary slope support of foundation pit

Abstract

This utility model relates to the field of slope protection technology, specifically a prefabricated flexible shaped slope protection system applied to temporary slope support of foundation pits. It includes a soil slope body, with a protective slope protection body abutting its upper surface. A fixing and shielding mechanism is provided within both the soil slope body and the slope protection body. The shielding mechanism includes soil nails for positioning, which penetrate and are inserted into the slope protection body. The top of each soil nail abuts against a protective cover, and a clamp for holding the soil nail is located below the cover. This prefabricated flexible shaped slope protection system for temporary slope support of foundation pits is assembled by inserting soil nails through the slope protection body into the soil slope body, binding multiple sets of soil nails together with steel wire ropes to form a mesh, and then attaching the slope protection body to the surface of the soil slope body. A ring plate is inserted at the top of the soil nail and tightened securely to prevent the top of the soil nail from protruding and causing damage.

Description

Technical Field

[0001] This utility model relates to the field of slope protection technology, specifically a prefabricated flexible fixed slope protection system applied to temporary slope support of foundation pits. Background Technology

[0002] Prefabricated flexible prefabricated support technology is an innovative support system that uses green and environmentally friendly standard components to replace cast-in-place components. It is quick to assemble and pollution-free. Based on the traditional soil nailing wall support design mechanism, it uses a prefabricated flexible prefabricated surface layer to replace the sprayed concrete surface layer. Anchor nails (soil nails) are connected into a whole through steel clips and steel wire ropes. It is a green support structure with the same support safety and design mechanism as traditional soil nailing walls. However, the existing prefabricated flexible prefabricated slope protection still has certain defects in use, such as: Existing prefabricated flexible slope protection typically uses steel clips directly clamped to the outside of the anchor nails to prevent the steel wire rope from falling off the anchor nails. When the steel clips are stepped on or squeezed, they are prone to slipping, exposing the anchor nails intermittently, which can easily puncture or scratch workers. Utility Model Content

[0003] The purpose of this invention is to provide a prefabricated flexible slope protection system for temporary slope support of foundation pits, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a prefabricated flexible fixed slope protection for temporary slope support of foundation pit, comprising a soil slope body, wherein the upper surface of the soil slope body abuts against a slope protection body for protection, and a shielding mechanism for fixing is provided in the soil slope body and the slope protection body. The shielding mechanism includes a soil nail for positioning. The soil nail penetrates the slope protection body and is inserted into the slope body. The top of the soil nail abuts against a protective cover. A clip for holding the soil nail is provided below the cover.

[0005] Preferably, the bottom of the cover is connected to a support column, the bottom of the support column is connected to an annular plate, and the annular plate is fitted onto the outside of the soil nail.

[0006] Preferably, the cover is provided with two sets of clamps for limiting the position of the clips on the side near the annular plate. The clips abut against the two sets of clamps together, and the clips abut against the cover and the annular plate.

[0007] Preferably, the clip is clamped to the outside of the soil nail, and a fastening bolt for pressing the clip is slidably inserted through the clip. The tail end of the fastening bolt is threaded with a nut for pressing the clip, and the nut is welded to the outside of the clip.

[0008] Preferably, the bottom of the annular plate abuts against a steel wire rope for limiting the slope protection body, and the steel wire rope is wrapped around the outside of multiple soil nails and fixed to each soil nail.

[0009] Preferably, the slope protection body includes a reinforced surface layer for increasing strength, a polymer surface layer for close adhesion to the soil is connected below the reinforced surface layer, a waterproof layer for waterproofing is connected below the polymer surface layer, and a micro-particle protective layer for protection is connected below the waterproof layer.

[0010] Preferably, a concrete layer a is poured at the top of the earthen slope body, and a concrete layer b is poured at the bottom of the earthen slope body, and the upper surfaces of both concrete layer a and concrete layer b have drainage channels for drainage.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. By inserting soil nails through the slope protection body into the soil slope body, multiple sets of soil nails are tied together with steel wire ropes to form a net, and the slope protection body is attached to the surface of the soil slope body for assembly. 2. By inserting the ring plate into the top of the soil nail and tightening the fastener, the top of the soil nail is prevented from protruding and causing damage. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the three-dimensional structure of the slope protection body of this utility model; Figure 2 This is a schematic diagram of the main cross-sectional structure of the earth slope body of this utility model; Figure 3 This is a schematic diagram of the three-dimensional structure of the reinforced surface layer of this utility model; Figure 4 This is a schematic diagram of the three-dimensional structure of the steel wire rope of this utility model; Figure 5 This is a schematic diagram of the three-dimensional structure of the annular plate of this utility model; Figure 6 This is a schematic diagram of the three-dimensional structure of the clip of this utility model; Figure 7 This is a schematic diagram of the three-dimensional structure of the nut of this utility model.

[0013] In the diagram: 1. Soil slope body; 2. Slope protection body; 201. Reinforced surface layer; 202. Polymer surface layer; 203. Waterproof layer; 204. Microparticle protective layer; 3. Concrete layer a; 4. Concrete layer b; 5. Drainage ditch; 6. Sheltering mechanism; 601. Soil nail; 602. Cover; 603. Column; 604. Circular plate; 605. Clamping plate; 606. Clip; 607. Fastening bolt; 608. Nut; 609. Steel wire rope. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1 and Figure 2 This utility model provides a technical solution: a prefabricated flexible fixed slope protection applied to temporary slope support of foundation pit, including a soil slope body 1, a slope protection body 2 for protection abutting the upper part of the soil slope body 1, a concrete layer a3 poured at the top of the soil slope body 1, and a concrete layer b4 poured at the bottom of the soil slope body 1, the upper surfaces of the concrete layer a3 and the concrete layer b4 both have drainage channels 5 for drainage, and a shielding mechanism 6 for fixing is provided inside the soil slope body 1 and the slope protection body 2.

[0016] The prefabricated flexible retaining wall used for temporary slope protection of foundation pits has concrete layers a3 and b4 pressing down the ends of the retaining wall body 2 to prevent it from being blown away by the wind. The drainage channel 5 guides the rainwater, collects the rainwater and drains it away.

[0017] exist Figure 3 In the middle, the slope protection body 2 includes a reinforced surface layer 201 for increasing strength, a polymer surface layer 202 for close adhesion to the soil connected below the reinforced surface layer 201, a waterproof layer 203 for waterproofing connected below the polymer surface layer 202, and a micro-particle protective layer 204 for protection connected below the waterproof layer 203.

[0018] This prefabricated flexible slope protection system, applied to temporary slope support for foundation pits, features a reinforced surface layer 201 that enhances the compressive strength of the slope protection body 2, effectively preventing damage from external impacts or soil sliding. It provides a robust protective layer, ensuring the slope is less prone to collapse or instability. The polymer surface layer 202 improves adhesion to the soil and also provides waterproofing. Together with the waterproof layer 203, the polymer surface layer 202 and the waterproof layer 203 prevent water penetration into the slope protection structure, preventing water flow from carrying away soil or reducing soil adhesion. The micro-particle protective layer 204 has strong resistance to wind and water erosion. The fine particles of the micro-particle protective layer 204 can effectively cover and protect the soil surface, reduce the erosion of soil particles by water flow or wind, protect the slope from damage by external natural factors, and protect the waterproof layer 203 and the polymer surface layer 202, preventing the waterproof layer 203 and the polymer surface layer 202 from directly contacting the soil.

[0019] exist Figure 1 , Figure 3 , Figure 4 and Figure 5 In the process, the shielding mechanism 6 includes a soil nail 601 for positioning. The soil nail 601 penetrates the slope protection body 2 and is inserted into the slope body 1. The top of the soil nail 601 abuts against a cover 602 for protection. The bottom of the cover 602 is connected to a support column 603 for support. The bottom of the column 603 is connected to an annular plate 604. The annular plate 604 is sleeved on the outside of the soil nail 601, and the bottom of the annular plate 604 abuts against a steel wire rope 609 for limiting the slope protection body 2. The steel wire rope 609 is wound around the outside of multiple soil nails 601 and is wrapped and fixed with each soil nail 601.

[0020] This prefabricated flexible slope protection system, used for temporary slope support of foundation pits, uses soil nails 601 made from cut steel bars. The soil nails 601 penetrate the slope protection body 2 and are inserted into the soil slope body 1, limiting the slope protection body 2 and preventing it from moving on the surface of the soil slope body 1. A ring plate 604 is inserted into the soil nails 601, and the top of the soil nails 601 abuts against the cover 602. The cover 602 prevents the top of the soil nails 601 from protruding and causing damage. Steel wire ropes 609 are tied to multiple sets of soil nails 601 to form a mesh, pressing the slope protection body 2 tightly against the soil slope body 1, so that the slope protection body 2 and the soil slope body 1 are in close contact. The ring plate 604 covers the steel wire ropes 609 to prevent them from slipping off the soil nails 601, and the cover 602 covers the top of the soil nails 601 to prevent them from piercing the protection personnel.

[0021] exist Figures 5-7 In the middle, the cover 602 is provided with two sets of clamping plates 605 on the side near the annular plate 604. The two sets of clamping plates 605 are abutted between a clamp 606 for clamping the soil nail 601. The clamp 606 abuts between the cover 602 and the annular plate 604, and the clamp 606 is clamped on the outside of the soil nail 601.

[0022] This prefabricated flexible slope protection system, used for temporary slope support of foundation pits, has a column 603 that supports the cover 602 and the annular plate 604 to hold the clip 606. Two sets of clamping plates 605 hold the clip 606 in place to prevent it from falling off. When the soil nail 601 is inserted into the annular plate 604 and abuts against the cover 602, the soil nail 601 is inside the clip 606. The clip 606 is made of metal materials such as iron and stainless steel.

[0023] exist Figure 6 and Figure 7 In the middle, a fastening bolt 607 for pressing the clamp 606 is slidably inserted through the clamp 606. The tail end of the fastening bolt 607 is threadedly connected to a nut 608 for pressing the clamp 606. The nut 608 is welded to the outside of the clamp 606.

[0024] The prefabricated flexible slope protection used for temporary slope support of foundation pits involves inserting a fastening bolt 607 through a clip 606 into a nut 608, and then rotating the fastening bolt 607 with an electric wrench to press the clip 606 onto the outside of the soil nail 601, preventing the annular plate 604 and the cover 602 from falling off the slope body 1.

[0025] In summary: When using this prefabricated flexible slope protection method for temporary slope support of foundation pits, firstly, the top and bottom of the slope are leveled, the threaded steel bars are cut into sections as soil nails 601, and the ends of the soil nails 601 are cut into acute angles. The rolled slope protection body 2 is nailed to the top of the slope with soil nails 601. Then, the rolled slope protection body 2 is unrolled on the slope body 1 to ensure that the slope protection body 2 is in a taut state. Multiple sets of soil nails 601 are inserted into the slope body 1 through the slope protection body 2. Then, the multiple sets of soil nails 601 are tied together with steel wire rope 609. Then, the annular plate 604 is inserted into the top of the soil nail 601. The fastening bolt 607 is tightened on the soil nail 601 with an electric wrench to prevent the clamp 606 from being pulled off the soil nail 601. Then, concrete is poured and smoothed at the top and bottom of the slope. The contents not described in detail in this description belong to the prior art known to those skilled in the art.

Claims

1. A prefabricated flexible slope protection system for temporary slope support of foundation pits, characterized in that: It includes a slope body (1), the upper surface of which abuts against a slope protection body (2) for protection, and a shielding mechanism (6) for fixing is provided inside the slope body (1) and the slope protection body (2). The shielding mechanism (6) includes a soil nail (601) for positioning. The soil nail (601) penetrates the slope protection body (2) and is inserted into the slope body (1). The top of the soil nail (601) abuts against a cover (602) for protection. A clip (606) for holding the soil nail (601) is provided below the cover (602).

2. The prefabricated flexible slope protection system for temporary slope support of foundation pits according to claim 1, characterized in that: The bottom of the cover (602) is connected to a support column (603), and the bottom of the support column (603) is connected to an annular plate (604), which is sleeved on the outside of the soil nail (601).

3. The prefabricated flexible slope protection system for temporary slope support of foundation pits according to claim 2, characterized in that: The cover (602) is provided with two sets of clamps (605) on the side near the annular plate (604) for limiting the clamps (606). The clamps (606) abut against the two sets of clamps (605) together, and the clamps (606) abut between the cover (602) and the annular plate (604).

4. The prefabricated flexible slope protection system for temporary slope support of foundation pits according to claim 1, characterized in that: The clip (606) is clamped on the outside of the soil nail (601), and a fastening bolt (607) for pressing the clip (606) is slidably inserted inside the clip (606). The tail end of the fastening bolt (607) is threadedly connected to a nut (608) for pressing the clip (606), and the nut (608) is welded to the outside of the clip (606).

5. A prefabricated flexible slope protection system for temporary slope support of foundation pits according to claim 2, characterized in that: The bottom of the annular plate (604) is abutted by a steel wire rope (609) for limiting the slope protection body (2). The steel wire rope (609) is wrapped around the outside of multiple soil nails (601) and fixed with each soil nail (601).

6. A prefabricated flexible slope protection system for temporary slope support of foundation pits according to claim 1, characterized in that: The slope protection body (2) includes a reinforced surface layer (201) for increasing strength, a polymer surface layer (202) for close contact with the soil is connected below the reinforced surface layer (201), a waterproof layer (203) for waterproofing is connected below the polymer surface layer (202), and a micro-particle protective layer (204) for protection is connected below the waterproof layer (203).

7. A prefabricated flexible slope protection system for temporary slope support of foundation pits according to claim 1, characterized in that: The top of the earthen slope body (1) is filled with a concrete layer a (3), and the bottom of the earthen slope body (1) is filled with a concrete layer b (4). The upper surfaces of the concrete layer a (3) and the concrete layer b (4) are both equipped with drainage channels (5) for drainage.

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