Excavation slope protection structure for highway roadbed

Abstract

The utility model relates to the technical field of side slope protection, and discloses a highway roadbed excavation side slope protection structure which comprises a soil slope, a hanging net is arranged on one side of the soil slope, a fixing rod is arranged in the soil slope, one end of the fixing rod is fixedly connected with a step protruding block, the outer wall of the fixing rod is fixedly connected with a fixing block, and the step protruding block is fixedly connected with the fixing block. The outer wall of the fixing rod is fixedly connected with barbs, the fixing rod is arranged in the hanging net in a penetrating mode, the other end of the fixing rod is fixedly connected with a wedge-shaped protruding block, the outer wall of the fixing rod is provided with a fixing ring, and the other end of the fixing rod is provided with a fixing assembly. According to the slope protection structure, the hanging net is laid on the surface of a soil slope, the fixing rods are inserted into the four edges of the hanging net, the stepped protruding blocks, the fixing blocks and the barbs are embedded into the soil slope, then the fixing rings are arranged on the fixing rods in a sleeving mode, the hanging net is fixed, the stabilizing effect of the fixing rods in the soil slope is improved, and the stability problem of the slope protection structure is solved; and the stability of the slope protection structure is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of slope protection, in particular to a highway roadbed excavation slope protection structure. Background Art

[0002] Highway subgrade refers to the basic structure of a highway, which is an important part of supporting the entire highway system. The subgrade is the first step in highway construction, which usually includes two main processes: subgrade filling and subgrade reinforcement. During the excavation of the highway subgrade, natural materials such as soil and rock need to be processed to form slopes. However, these slopes may have risks of slope stability due to geological conditions, soil properties and other factors. In order to reduce the occurrence of unexpected events such as slope instability, collapse and landslides, and to protect the safety of traffic and pedestrians beside the carriageway, protective structures are needed.

[0003] After searching, the publication number: CN213173771U discloses a slope protection structure for steep rock slopes with soil and nets, which relates to the field of slope protection and greening, including slope protection and nets. The four corners of the net are provided with mounting rings, and each mounting ring is penetrated by a fixing rod, and the bottom end of the fixing rod extends into the slope protection and fixes the net on the slope surface of the slope protection; a first fixing member is provided between two adjacent mounting rings, and a second fixing member is provided between two fixing rods located on the diagonal line of the net, and the first fixing member and the second fixing member press the net on the slope surface of the slope protection. The first fixing member and the second fixing member press the net on the slope protection, and the present application has the effect that the soil is not easy to fall off. However, the patent only solves that a first fixing member is provided between two adjacent mounting rings, a second fixing member is provided between two fixing rods located on the diagonal line of the net, and the first fixing member and the second fixing member press the net on the slope surface of the slope protection. The first fixing member and the second fixing member press the hanging net onto the slope protection. The present application has the effect that the imported soil is not easy to fall off, but does not solve the problem that the fixing rod is only fixed by inserting the barbs into the soil. Due to the large number of barbs, the soil will become loose, and the effect of fixing the fixing rod will be weakened, which will affect the stability of the highway roadbed excavation slope protection structure. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a highway roadbed excavation slope protection structure, which aims to improve the problem that loose soil will weaken the fixing effect of the fixing rod, thereby affecting the stability of the highway roadbed excavation slope protection structure.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A highway roadbed excavation slope protection structure comprises a soil slope, a hanging net is arranged on one side of the soil slope, a fixing rod is arranged inside the soil slope, one end of the fixing rod is fixedly connected to a stepped protrusion, the outer wall of the fixing rod is fixedly connected to a fixing block, the outer wall of the fixing rod is fixedly connected to a barb, the fixing rod is penetrated into the hanging net, the other end of the fixing rod is fixedly connected to a wedge-shaped protrusion, the outer wall of the fixing rod is arranged to a fixing ring, and the other end of the fixing rod is arranged to a fixing component.

[0007] Through the above technical solution, the hanging net is used to protect the earth slope. The fixing rod is firmly embedded in the earth slope through the cooperation of the step protrusion, the fixing block and the barb. The hanging net is fixed by contacting the fixing ring with the hanging net, and the fixing ring is further reinforced by the fixing assembly.

[0008] Furthermore, the fixing assembly includes a sleeve, an opening and an elastic card, the opening is formed inside the sleeve, and the elastic card is fixedly connected inside the opening.

[0009] Through the above technical solution, the elastic card inside the sleeve extends and contracts along the inside of the opening inside the sleeve.

[0010] Furthermore, the outer wall of the elastic card is embedded in the wedge-shaped protrusion, and the sleeve is slidably connected to the outer wall of the wedge-shaped protrusion through the opening.

[0011] Through the above technical solution, the sleeve is clamped on the fixing rod through elastic clips, and there are shrinkage gaps between the elastic clips for being embedded in the wedge-shaped protrusions.

[0012] Furthermore, a second limiting groove is provided inside the fixing ring, a limiting plate and a clamping block are slidably connected inside the second limiting groove, one side of the limiting plate is fixedly connected to one side of the clamping block, and an outer wall of the clamping block is embedded in the wedge-shaped protrusion.

[0013] Through the above technical solution, the clamping block is slidably limited in the second limiting groove in the fixing ring through the limiting plate, and the fixing ring is connected to the fixing rod by the clamping block being embedded in the wedge-shaped protrusion.

[0014] Furthermore, a telescopic rod is fixedly connected inside the second limiting groove, and a compression spring is sleeved on the outer wall of the telescopic rod.

[0015] Through the above technical solution, the telescopic rod is used to limit the compression spring.

[0016] Furthermore, one end of the telescopic rod and the compression spring are both fixedly connected to the other side of the limiting plate, and the other ends of the telescopic rod and the compression spring are both fixedly connected inside the second limiting groove.

[0017] Through the above technical solution, the compression spring supports the clamping block through the limiting plate.

[0018] Furthermore, a limiting groove one is provided inside the fixing ring, a limiting block is arranged inside the fixing ring, and an outer wall of the limiting block is slidably connected inside the limiting groove one.

[0019] Through the above technical solution, the limiting groove 1 is used to limit the limiting block.

[0020] Furthermore, a connecting block is fixedly connected to one side of the limiting block, and an intercepting rope is fixedly connected to one end of the connecting block.

[0021] Through the above technical solution, the connecting block is used to connect and fix the interception rope, and the interception rope is used to further block the hanging net.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, firstly, the hanging net is laid on the surface of the earth slope, and fixing rods are inserted on four sides so that the stepped protrusions, the fixing blocks and the barbs are embedded in the earth slope. Then, the fixing ring is set on the fixing rod to fix the hanging net, thereby improving the stability of the fixing rod in the earth slope, solving the problem that the fixing effect of the fixing rod will be weakened due to loose soil, affecting the stability of the slope protection structure of the highway roadbed excavation, and improving the stability of the slope protection structure.

[0024] 2. In the utility model, the fixing ring and the fixing rod are engaged with each other through a clamping block embedded in the groove between the wedge-shaped protrusions, thereby achieving a design that is separated from the fixing block. This solves the problem that the blocking block and the fixing rod are fixed, and the fixing rod is tilted during transportation due to the support of the blocking block, which wastes space and affects the practicality of the slope protection structure. The practicality of the slope protection structure is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A three-dimensional diagram of a highway roadbed excavation slope protection structure proposed by the utility model;

[0026] Figure 2 This is a schematic diagram of the internal structure of a sleeve of a highway roadbed excavation slope protection structure proposed by the utility model;

[0027] Figure 3 This is a schematic diagram of the internal structure of a fixed ring of a highway roadbed excavation slope protection structure proposed by the utility model;

[0028] Figure 4 for Figure 3 A partial enlarged schematic diagram in the middle.

[0029] Legend:

[0030] 1. Earth slope; 2. Hanging net; 3. Fixing rod; 4. Stepped protrusion; 5. Fixing block; 6. Barb; 7. Wedge-shaped protrusion; 8. Fixing ring; 9. Sleeve; 10. Opening; 11. Elastic card; 12. Limiting groove one; 13. Connecting block; 14. Limiting block; 15. Limiting groove two; 16. Card block; 17. Limiting plate; 18. Telescopic rod; 19. Compression spring; 20. Intercepting rope. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Reference Figure 1-2 , the utility model provides an embodiment: a highway roadbed excavation slope protection structure, including a soil slope 1, a hanging net 2 is arranged on one side of the soil slope 1, a fixing rod 3 is arranged inside the soil slope 1, one end of the fixing rod 3 is fixedly connected with a stepped protrusion 4, the outer wall of the fixing rod 3 is fixedly connected with a fixing block 5, the outer wall of the fixing rod 3 is fixedly connected with a barb 6, the fixing rod 3 is inserted into the hanging net 2, the other end of the fixing rod 3 is fixedly connected with a wedge-shaped protrusion 7, the outer wall of the fixing rod 3 is provided with a fixing ring 8, the other end of the fixing rod 3 is provided with a fixing assembly, the fixing assembly includes a sleeve 9, an opening 10 and an elastic card 11, the opening 10 is arranged inside the sleeve 9, the elastic card 11 is fixedly connected inside the opening 10, the outer wall of the elastic card 11 is embedded in the wedge-shaped protrusion 7, and the sleeve 9 is slidably connected to the outer wall of the wedge-shaped protrusion 7 through the opening 10;

[0033] Specifically, the earth slope 1 is a slope formed by excavating the roadbed of a highway. The earth slope 1 is protected by laying a hanging net 2 on the inclined surface of the earth slope 1, and then a fixing rod 3 is inserted into the earth slope 1 through the hanging net 2. First, the stepped protrusion 4 on the fixing rod 3 is first inserted into the earth slope 1. The stepped protrusion 4 is a cone that is narrow at the top and wide at the bottom, so that the fixing rod 3 can be more conveniently inserted into the earth slope 1. Then, the fixing block 5 is used to increase the contact area of ​​the fixing rod 3. Then, the barb 6 is used to prevent the fixing rod 3 from being pulled out to increase the friction between the fixing rod 3 and the earth slope 1. Then, the fixing ring 8 is installed on the fixing rod 3 to increase the contact area with the hanging net 2 so that it is firmly fixed on the surface of the earth slope 1. Then, the sleeve 9 is inserted into the wedge-shaped protrusion 7 through the opening 10, and the elastic card 11 is inserted into the inside of the wedge-shaped protrusion 7 for locking. The elastic card 11 extends in the sleeve 9 toward the inside of the opening 10, which can further prevent the fixing ring 8 from falling off.

[0034] Reference Figure 2-4A second limiting groove 15 is provided inside the fixed ring 8, and a limiting plate 17 and a block 16 are slidably connected inside the limiting groove 15. One side of the limiting plate 17 is fixedly connected to one side of the block 16, and the outer wall of the block 16 is embedded in the wedge-shaped protrusion 7. A telescopic rod 18 is fixedly connected inside the limiting groove 15, and a compression spring 19 is sleeved on the outer wall of the telescopic rod 18. One end of the telescopic rod 18 and the compression spring 19 are fixedly connected to the other side of the limiting plate 17, and the other end of the telescopic rod 18 and the compression spring 19 are fixedly connected to the inside of the limiting groove 15. A limiting groove 12 is provided inside the fixed ring 8, and a limiting block 14 is arranged inside the fixed ring 8. The outer wall of the limiting block 14 is slidably connected to the inside of the limiting groove 12. One side of the limiting block 14 is fixedly connected to a connecting block 13, and one end of the connecting block 13 is fixedly connected to an intercepting rope 20;

[0035] Specifically, the fixing ring 8 is fixed on the wedge-shaped protrusion 7 by the internal clamping block 16, the barb 6 is limited in the limiting groove 15 by the limiting plate 17, the telescopic rod 18 connects the fixing ring 8 and the clamping block 16 and limits the compression spring 19, so that the fixing ring 8 and the fixing rod 3 are not separated when not installed so that they can be paved and transported, reducing the occupied space, and the hanging net 2 can be fixed on the connecting block 13 by the intercepting rope 20 to further reinforce the hanging net 2, and the connecting block 13 is limited in the limiting groove 12 by the limiting block 14.

[0036] Working principle: When using the slope protection structure, first lay the hanging net 2 on the slope of the earth slope 1, then insert the fixing rod 3 around the hanging net 2 for fixing, firstly, the stepped protrusion 4 at the front end of the fixing rod 3 has a smaller top diameter and a larger bottom diameter, so that the fixing rod 3 can be more conveniently inserted into the earth slope 1, then the fixing block 5 increases the contact area of ​​the fixing rod 3 in the earth slope 1, then the barb 6 firmly grasps the soil to prevent the fixing rod 3 from being pulled out, then the fixing ring 8 is sleeved on the fixing rod 3, and the fixing ring 8 and the fixing rod 3 are connected by the clamping block 16 inside the fixing ring 8, which is embedded in the wedge-shaped protrusion 7. After locking, the card block 16 is limited in the limiting groove 15 inside the fixing ring 8 by the limiting plate 17, and the card block 16 is supported by the compression spring 19 so that the card block 16 is stuck in the wedge-shaped protrusion 7, and then the intercepting rope 20 is fixed between the two groups of diagonal corners of the fixing ring 8 installed at the four corners through the connecting block 13 to further block and fix the hanging net 2, and the connecting block 13 is rotated in the limiting groove 12 through the limiting block 14, and the direction angle can be adjusted, and then the sleeve 9 is embedded in the wedge-shaped protrusion 7 to further fix the fixing ring 8, and the elastic card 11 inside the sleeve 9 will be embedded in the wedge-shaped protrusion 7.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A highway roadbed excavation slope protection structure, comprising a soil slope (1), characterized in that: A hanging net (2) is arranged on one side of the earth slope (1), a fixing rod (3) is arranged inside the earth slope (1), one end of the fixing rod (3) is fixedly connected to a stepped protrusion (4), an outer wall of the fixing rod (3) is fixedly connected to a fixing block (5), an outer wall of the fixing rod (3) is fixedly connected to a barb (6), the fixing rod (3) is inserted into the hanging net (2), the other end of the fixing rod (3) is fixedly connected to a wedge-shaped protrusion (7), the outer wall of the fixing rod (3) is provided with a fixing ring (8), and the other end of the fixing rod (3) is provided with a fixing component.

2. A highway roadbed excavation slope protection structure according to claim 1, characterized in that: The fixing assembly comprises a sleeve (9), an opening (10) and an elastic card (11); the opening (10) is formed inside the sleeve (9), and the elastic card (11) is fixedly connected inside the opening (10).

3. A highway roadbed excavation slope protection structure according to claim 2, characterized in that: The outer wall of the elastic card (11) is embedded in the wedge-shaped protrusion (7), and the sleeve (9) is slidably connected to the outer wall of the wedge-shaped protrusion (7) through the opening (10).

4. A highway roadbed excavation slope protection structure according to claim 1, characterized in that: A second limiting groove (15) is provided inside the fixing ring (8), and a limiting plate (17) and a clamping block (16) are slidably connected inside the second limiting groove (15). One side of the limiting plate (17) is fixedly connected to one side of the clamping block (16), and an outer wall of the clamping block (16) is embedded in the wedge-shaped protrusion (7).

5. A highway roadbed excavation slope protection structure according to claim 4, characterized in that: A telescopic rod (18) is fixedly connected inside the second limiting groove (15), and a compression spring (19) is sleeved on the outer wall of the telescopic rod (18).

6. A highway roadbed excavation slope protection structure according to claim 5, characterized in that: One end of the telescopic rod (18) and the compression spring (19) are both fixedly connected to the other side of the limit plate (17), and the other ends of the telescopic rod (18) and the compression spring (19) are both fixedly connected inside the second limit slot (15).

7. A highway roadbed excavation slope protection structure according to claim 4, characterized in that: A limiting groove (12) is provided inside the fixing ring (8), a limiting block (14) is arranged inside the fixing ring (8), and an outer wall of the limiting block (14) is slidably connected inside the limiting groove (12).

8. A highway roadbed excavation slope protection structure according to claim 7, characterized in that: One side of the limit block (14) is fixedly connected to a connection block (13), and one end of the connection block (13) is fixedly connected to an interception rope (20).

Images