Reinforcing and protecting structure for fill slope

Abstract

The utility model discloses a fill slope reinforcement protection structure, including a plurality of geocells and a plurality of geogrids, the geocells are laid in the slope in a layered manner, the geocells are filled with fillers, the outer sides of the adjacent geocells are connected through the geogrids, the geogrids are laid on the surface of the slope, and the geocells are arranged on the surface of the slope. A plurality of fixing mechanisms are arranged in the geocells, the geocells and the geogrids are used in a combined mode, the geocells are laid in a layered and staggered mode to form a step shape, the geogrids connect the outer sides of the adjacent geocells, a reinforcing system supporting each other is formed, and the stability of the side slope is remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of slope protection, in particular to a fill slope reinforcement and protection structure. Background Art

[0002] Slope is an important part of road engineering and is directly related to the safe use of road operations. With the rapid development of our country, the increasing attention to environmental protection and the requirement for rational use of resources, it is necessary to ensure the stability of the slope so that the construction can proceed smoothly and the quality of highway construction, and to effectively restore the ecology along the line, minimize the damage to the natural environment, and coordinate the protection project with the surrounding environment and natural landscape.

[0003] At present, technicians have developed a variety of road slope protection methods: 1. Shotcrete and shotcrete are mainly suitable for easily weathered soft rocks and rock excavation slopes with developed cracks and joints, uneven slopes, and severe fragmentation. They can prevent further weathering of the slope and promote the reinforcement of broken rocks between cracks by filling with mortar. However, the labor intensity is relatively high, which is not conducive to the protection of the ecological environment and is not in harmony with the road environment and landscape. 2. Embankments of fill sections mostly use geosynthetics (such as geocells, geogrids, and geonet mats) to stabilize the slopes. Although this protective measure has played a certain positive role in engineering practice, it also has some shortcomings. The main manifestation is that the use of a single geosynthetic material will reduce its frictional resistance with the slope, and the formed protective layer is relatively thin and has a low anti-erosion ability. When the water flow is large, it is easy to cause surface shedding, which then develops into roadbed diseases. (3) Gravity retaining wall: Gravity retaining wall relies on its own gravity to balance the soil. It is generally simple in type, easy to construct, requires a large amount of masonry work, and has high requirements for the foundation. However, it has obvious shortcomings in use, especially the slope surface cannot be greened.

[0004] The Chinese utility model patent "A three-dimensional embankment slope reinforcement and protection combined structure and railway embankment structure" with publication number CN208792347U, by laying geogrids inside the embankment slope, laying geocells on the slope surface and fixing them with fixing nails, using annular one-way tightening buckles to pass through the vertical wall mesh of the slope geocell and the plane mesh of the geogrid at the slope end inside the slope to tighten and connect them into a whole, the slope green protection plane structure and the reinforced belt in the embankment fill body are organically combined through annular one-way tightening buckles to form a three-dimensional structure, which improves the overall stability of the slope. However, in actual application, when the geocell is laid flat on the surface of the embankment slope and filled with planting soil to plant green plants, it is difficult to fill the cell with planting soil when the slope is steep, and it is difficult to ensure the growth environment of plants; at the same time, the process also requires measures such as slope anchors for anchoring, which increases the project cost and the overall construction efficiency is low. Utility Model Content

[0005] In order to solve the problems existing in the above-mentioned prior art, the utility model provides a fill slope reinforcement and protection structure, which is achieved by combining geocells and geogrids. The geocells are laid in layers and staggered to form a stepped shape, and the geogrids connect the outer sides of adjacent geocells to form a mutually supporting reinforcement system, thereby significantly improving the stability of the slope.

[0006] The technical solution of the utility model is as follows:

[0007] A fill slope reinforcement and protection structure comprises a plurality of geocells and a plurality of geogrids, wherein the geocells are laid in layers in the slope, the geocells are filled with fillers, the outer sides of adjacent geocells are connected by the geogrids, the geogrids are laid on the slope surface, and a plurality of fixing mechanisms are arranged in the geocells.

[0008] Furthermore, the fixing mechanism includes a sleeve and a limit plate, a limit rod is provided on the top of the limit plate, the sleeve is sleeved outside the limit rod and is slidably connected to the limit rod, and there are four limit grooves at the beginning of the circular array on the limit plate, and support plates are slidably connected in the limit grooves, and the side of the support plate close to the sleeve is rotatably connected to two connecting rods parallel to each other, and the other end of the connecting rod is rotatably connected to the circumferential outer wall of the sleeve.

[0009] Furthermore, the fixing mechanism also includes an end plate, the top of the sleeve abuts against the bottom of the end plate, a screw is fixedly provided at the bottom of the end plate, a threaded hole is opened in the limiting rod along the length direction of the limiting rod, and the screw is threadedly matched with the threaded hole.

[0010] Furthermore, a clamping block is fixedly provided at the bottom of the limiting plate.

[0011] Furthermore, a sliding block is provided on the inner wall of the sleeve, and a limiting sliding groove is provided on the circumferential outer wall of the limiting rod, and the sliding block is slidably matched with the limiting sliding groove.

[0012] Furthermore, a plurality of fixing buckles are respectively provided at both ends of the geogrid, and the two ends of the geogrid are connected to the outer sides of the two adjacent layers of the geocells through the fixing buckles.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The utility model uses a combination of geocells and geogrids, wherein the geocells are laid in layers and staggered to form a stepped shape, and the geogrids connect the outer sides of adjacent geocells to form a mutually supporting reinforcement system, which significantly improves the stability of the slope; at the same time, a fixing mechanism is arranged in the geocell, in particular, a parallelogram mechanism composed of a support plate and an outer wall of the sleeve, which provides support for the geocell and prevents displacement or deformation of the protective structure under the action of external forces. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the single-layer geocell structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the initial state of the fixing mechanism of the utility model;

[0018] Figure 4 This is a schematic diagram of the fixed mechanism of the utility model in the open state;

[0019] Figure 5 It is a cross-sectional view of the fixing mechanism of the utility model.

[0020] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0021] 1. Geocell; 2. Geogrid; 3. Fixing mechanism; 301. Sleeve; 302. Limiting plate; 303. Limiting rod; 304. Limiting groove; 305. Support plate; 306. Connecting rod; 307. End plate; 308. Screw; 309. Threaded hole; 310. Block. DETAILED DESCRIPTION

[0022] In order to make the contents of the present invention easier to understand, the technical solution of the present invention is further described below in conjunction with specific implementation methods and drawings, but the present invention is not limited thereto.

[0023] See also Figure 1 and Figure 2 The utility model provides a technical solution: a fill slope reinforcement and protection structure, comprising a plurality of geocells 1 and a plurality of geogrids 2, the geocells 1 are laid in layers in the slope, the geocells 1 are staggered and arranged in sequence to form a stepped shape, the geocells 1 are filled with fillers, the outer sides of adjacent geocells 1 are connected by geogrids 2, the geogrids 2 are laid on the surface of the slope, and a plurality of fixing mechanisms 3 are arranged in the geocells 1.

[0024] From the above description, it can be seen that the protective structure is formed by a combination of a geocell 1 and a geogrid 2, wherein the filler filled in the geocell 1 is confined in a certain space, which can prevent the filler from being lost or sliding, and enhance the bearing capacity of the soil. The geogrid 2 is laid on the surface of the slope, and its planar structure provides tensile strength, which can protect the slope from damage by natural factors such as weathering and water erosion, and reduce the risk of landslides. The combination of geocell 1 and geogrid 2 can significantly improve the stability of the slope. At the same time, the position of the geocell 1 can be fixed by the fixing mechanism 3 to prevent the geocell from being displaced or deformed due to external forces during the laying process.

[0025] As a further preferred embodiment of the present invention, a plurality of fixing buckles are respectively provided at both ends of the geogrid 2, and the two ends of the geogrid 2 are connected to the outer sides of two adjacent layers of geocells 1 through the fixing buckles to achieve reverse packaging.

[0026] See also Figure 3 to Figure 4 The fixing mechanism 3 includes a sleeve 301 and a limit plate 302. A limit rod 303 is arranged on the top of the limit plate 302. The sleeve 301 is sleeved outside the limit rod 303 and is slidably connected to the limit rod 303. There are four limit grooves 304 at the beginning of the annular array on the limit plate 302. A support plate 305 is slidably connected in the limit grooves 304. The support plate 305 is rotatably connected to two mutually parallel connecting rods 306 on one side close to the sleeve 301. The other end of the connecting rod 306 is rotatably connected to the circumferential outer wall of the sleeve 301. The support plate 305, the sleeve 301 and the connecting rods 306 on both sides form a parallelogram mechanism.

[0027] As a further preference of this embodiment, the fixing mechanism 3 also includes an end plate 307, and the top of the sleeve 301 is rotatably connected to the bottom of the end plate 307. When the end plate 307 rotates, the sleeve 301 will not rotate with the end plate 307, but when the end plate 307 moves up and down, the sleeve 301 will move up and down with the end plate 307. A screw 308 is fixedly provided at the bottom of the end plate 307, and a threaded hole 309 is opened in the limit rod 303 along the length direction of the limit rod 303, and the screw 308 is threadedly matched with the threaded hole 309.

[0028] From the above description, it can be known that the limiting plate 302 is placed flat in the geocell 1, and by rotating the end plate 307, under the action of the screw 308 and the threaded hole 309, the end plate 307 moves downward, driving the sleeve 301 to move downward, and under the limiting action of the limiting groove 304, the support plate 305 moves along the limiting groove 304 to a position away from the sleeve 301 until the outer side of the support plate 305 abuts against the inner wall of the geocell 1, providing support for the geocell 1 to prevent displacement under the action of external force, which helps to maintain the shape and position of the geocell 1.

[0029] As a further preference of this embodiment, a slider is provided on the inner wall of the sleeve 301, and a limiting groove is provided on the circumferential outer wall of the limiting rod 303. The slider and the limiting groove slide in sliding cooperation to prevent the sleeve 301 from rotating during use and affecting the support of the support plate 305 to the geocell 1.

[0030] As a further preference of this embodiment, a clamping block 310 is fixedly provided at the bottom of the limiting plate 302, and the clamping block 310 can be clamped into the underlying soil to make the fixing mechanism 3 more secure.

[0031] Working principle of this utility model:

[0032] First, a layer of geocell 1 is laid in the slope; secondly, a plurality of fixing mechanisms 3 are placed regularly in the geocell, the clamping block 310 is clamped into the soil, and the end plate 307 is rotated to open the support plates 305 around the sleeve 301 to abut against the inner wall of the adjacent geocell 1; then, appropriate fillers are filled in the geocell 1 to enhance the bearing capacity of the soil, and the above steps are repeated until a plurality of geocells 1 are laid in a staggered manner in sequence to form a stepped shape, and finally the outer sides of adjacent geocells 1 are connected using geogrids 2 and fixed by fixing buckles to achieve reverse packaging, thereby completing the construction of the slope reinforcement and protection structure to ensure the stability and durability of the slope.

[0033] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A fill slope reinforcement and protection structure, comprising a plurality of geocells (1) and a plurality of geogrids (2), characterized in that: The geocells (1) are laid in layers in the slope, the geocells (1) are filled with fillers, the outer sides of adjacent geocells (1) are connected via the geogrids (2), the geogrids (2) are laid on the surface of the slope, and a plurality of fixing mechanisms (3) are arranged in the geocells (1).

2. The fill slope reinforcement and protection structure according to claim 1 is characterized by: The fixing mechanism (3) comprises a sleeve (301) and a limiting plate (302), a limiting rod (303) is arranged on the top of the limiting plate (302), the sleeve (301) is sleeved outside the limiting rod (303) and is slidably connected to the limiting rod (303), four limiting grooves (304) are arranged in a circular array on the limiting plate (302), and a support plate (305) is slidably connected in each of the limiting grooves (304), and two connecting rods (306) parallel to each other are rotatably connected on one side of the supporting plate (305) close to the sleeve (301), and the other end of the connecting rod (306) is rotatably connected to the circumferential outer wall of the sleeve (301).

3. The fill slope reinforcement and protection structure according to claim 2 is characterized in that: The fixing mechanism (3) further comprises an end plate (307), the top of the sleeve (301) abuts against the bottom of the end plate (307), a screw rod (308) is fixedly provided at the bottom of the end plate (307), a threaded hole (309) is provided in the limiting rod (303) along the length direction of the limiting rod (303), and the screw rod (308) is threadedly matched with the threaded hole (309).

4. The fill slope reinforcement and protection structure according to claim 2 is characterized by: A clamping block (310) is fixedly arranged at the bottom of the limiting plate (302).

5. The fill slope reinforcement and protection structure according to claim 2 is characterized in that: The inner wall of the sleeve (301) is provided with a sliding block, the circumferential outer wall of the limiting rod (303) is provided with a limiting sliding groove, and the sliding block is slidably matched with the limiting sliding groove.

6. The fill slope reinforcement and protection structure according to claim 1, characterized in that: A plurality of fixing buckles are respectively provided at both ends of the geogrid (2), and the two ends of the geogrid (2) are connected to the outer sides of two adjacent layers of geocells (1) via the fixing buckles.

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