Full-wall self-greening type supporting structure

Abstract

The utility model discloses a full wall self-greening type supporting structure which comprises a plurality of self-greening supporting and retaining units which are mutually overlapped, each self-greening supporting and retaining unit comprises a top plate net, a wall surface net, a bottom plate net, a composite geotechnical mat and a reinforcing mesh, the upper edge of the wall surface net is connected with the top plate net, and the lower edge of the wall surface net is connected with the bottom plate net. The lower edge of the wall surface net is connected with the bottom plate net, the top plate net, the wall surface net and the bottom plate net together form a [-shaped structure, the inner side of the wall surface net is provided with the composite geotechnical mat and the reinforcing mesh, and the composite geotechnical mat is located between the reinforcing mesh and the wall surface net; the composite geotextile mat is provided with a nutrition matrix layer. The wall face of the supporting structure can achieve large-area greening, the self-greening effect is achieved, after structural construction is completed, the measures of spray seeding, branch cutting, planting and the like do not need to be adopted for greening, and the greening effect can be achieved through the self-greening type composite geotechnical mat by means of simple maintenance.

Description

Technical Field

[0001] The utility model relates to a full-wall self-greening type supporting structure, belonging to the technical field of supporting structures. Background Art

[0002] Reinforced earth retaining wall is composed of wall surface, reinforcement and fill. It is a retaining structure that uses reinforcement and fill as a whole to resist earth pressure. Commonly used reinforced earth retaining walls can be roughly divided into flexible wrapped panel reinforced earth retaining walls, semi-rigid modular panel reinforced earth retaining walls, rigid integral panel reinforced earth retaining walls, prefabricated panel reinforced earth retaining walls and other forms according to the rigidity of their wall panels.

[0003] Traditional reinforced earth retaining walls have the following disadvantages: (1) Poor integrity: the wall surface and the reinforcement are connected by connecting rods or fasteners, which has poor integrity; (2) Poor eco-friendliness: most walls are difficult to green and difficult to integrate with the surrounding environment.

[0004] Chinese patent application CN203320549U discloses a high slope reinforced gabion retaining wall for airport engineering, which comprises a mortar-made stone foundation, a reinforced gabion section and a natural slope section from the base surface to the fill surface at the top of the slope. It can be widely used in slope retaining structure projects such as airports, water conservancy and hydropower, road traffic, and buildings built in mountainous areas, especially for high slopes exceeding 20m, but it is difficult to green the wall surface.

[0005] Chinese patent application CN110318405A discloses a construction method of a combined slope protection system based on gabion cages and geogrids. The geogrid has a large tensile strength and increases the stability of the high fill slope. At the same time, the presence of the grid mesh restricts the lateral movement of the soil, forming a good interlocking effect, so that the soil has a good overall shear resistance. The geogrid has a certain strength to diffuse the load above and improve the bearing capacity of the foundation. The geogrid is connected to the gabion cage, so that the slope is connected to the entire fill to achieve the purpose of strengthening the stability of the slope. In addition, a proper amount of planting soil is filled in the gabion cage at the setback, and geotextiles are used to isolate the stones in the gabion cage from the planting soil, and vegetation suitable for local growth is planted in the planting soil. However, the space at the setback is limited, and the planting soil and stones are mixed together, which increases the construction difficulty and construction volume. In addition, whether the drainage treatment of the retaining wall is appropriate also directly affects the safety and use effect of the retaining wall. Utility Model Content

[0006] In order to overcome the problems existing in the prior art, the utility model provides a comprehensive wall self-greening type supporting structure, and the specific technical scheme is as follows.

[0007] A full-wall self-greening support structure, characterized in that it includes a plurality of self-greening retaining units stacked on each other, each of the self-greening retaining units includes a top plate mesh, a wall mesh, a bottom plate mesh, a composite geomat and a steel mesh, the upper edge of the wall mesh is connected to the top plate mesh, the lower edge of the wall mesh is connected to the bottom plate mesh, the top plate mesh, the wall mesh and the bottom plate mesh together form a U-shaped structure, the composite geomat and the steel mesh are arranged on the inner side of the wall mesh, the composite geomat is located between the steel mesh and the wall mesh; the composite geomat has a nutrient matrix layer.

[0008] Furthermore, the roof mesh, wall mesh and bottom mesh are formed by folding a mesh. Preferably, the roof mesh, wall mesh and bottom mesh all use double-twisted steel wire reinforcement mesh. The roof mesh, wall mesh and bottom mesh are the same mesh, and have good integrity.

[0009] Furthermore, the angle between the wall mesh and the bottom plate mesh is 45°-70°.

[0010] Furthermore, a triangular bracket is arranged inside the steel mesh, and the triangular bracket abuts against the steel mesh and the bottom plate mesh at the same time. The triangular bracket is conducive to maintaining the stability of the composite geomat and the wall mesh.

[0011] Furthermore, a support rod is included, the upper end of the support rod is connected to the steel mesh, and the lower end of the support rod is connected to the bottom plate mesh.

[0012] Furthermore, the lower edge of the composite geotextile mat is attached to the bottom plate net, and the upper edge is attached to the bottom plate net. This arrangement is conducive to maintaining the long-term stability and reliability of the composite geotextile mat.

[0013] Furthermore, a polyester yarn clustering grid is arranged between two adjacent self-greening support units.

[0014] Furthermore, two of the self-greening retaining units are also provided with a composite corrugated drainage mat, which includes a polypropylene drainage core material layer and a polypropylene filament non-woven geotextile layer located on both sides of the polypropylene drainage core material layer. Compared with the traditional gravel drainage layer, the composite corrugated drainage mat is a factory-prefabricated finished product with simple construction, controllable quality and excellent performance. A 6mm thick composite corrugated drainage mat can be equivalent to a 300mm thick gravel drainage layer.

[0015] Furthermore, soil is filled between the top plate mesh and the bottom plate mesh.

[0016] Compared with the prior art, the beneficial effects of the utility model are: the wall surface of the support structure of the utility model can achieve large-scale greening, and has a self-greening effect. After the structural construction is completed, there is no need to take measures such as spraying, grafting, and planting for greening. The greening effect can be achieved through simple maintenance through the self-greening composite geotextile; it has good integrity and can resist uneven settlement of the foundation to a certain extent; the composite corrugated drainage mat can effectively prevent surface water from seeping in and causing water accumulation behind the wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the comprehensive wall self-greening type supporting structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the self-greening support unit;

[0019] Figure 3 It is a schematic diagram of a composite corrugated drainage mat.

[0020] In the figure: 1-self-greening retaining unit, 2-composite geotextile, 3-structure buried depth layer, 4-polyester yarn cluster grid, 5-intercepting and drainage system, 6-composite corrugated drainage mat, 7-fill, 1-1-wall mesh, 1-2-triangular bracket, 1-3-top plate mesh, 1-4-steel mesh, 1-5-support rod, 1-6-bottom plate mesh, 6-1-polypropylene drainage core material layer, 6-2-polypropylene filament non-woven geotextile layer. DETAILED DESCRIPTION

[0021] The utility model is described in further detail below in conjunction with the accompanying drawings.

[0022] See also Figure 1-Figure 3 A self-greening supporting structure for a full wall includes a plurality of self-greening retaining units 1 stacked on top of each other, and the full wall can achieve a self-greening effect; the self-greening retaining unit 1 includes a self-greening composite geotextile mat 2.

[0023] The full wall self-greening support structure needs to be located on a foundation that meets the bearing capacity requirements, with a buried depth layer 3 at the bottom that meets the structural buried depth requirements.

[0024] like Figure 2 As shown, the self-greening retaining unit 1 includes a top plate mesh 1-3, a wall mesh 1-1, a bottom plate mesh 1-6, a composite geomat 2 and a steel mesh 1-4, the upper edge of the wall mesh 1-1 is connected to the top plate mesh 1-3, the lower edge of the wall mesh 1-1 is connected to the bottom plate mesh 1-6, the top plate mesh 1-3, the wall mesh 1-1 and the bottom plate mesh 1-6 together form a U-shaped structure, the inner side of the wall mesh 1-1 is provided with a composite geomat 2 and a steel mesh 1-4, and the composite geomat 2 is located between the steel mesh 1-4 and the wall mesh 1-1.

[0025] The self-greening retaining unit 1 also includes a triangular bracket 1-2 and a support rod 1-5; the bottom plate mesh 1-6, the wall mesh 1-1, and the top plate mesh 1-3 are the same mesh. According to the design requirements, the wall mesh 1-1 and the bottom plate mesh 1-6 are at a certain angle, preferably one of 45°, 65°, and 70°. The triangular bracket 1-2 and the support rod 1-5 are installed on the steel mesh 1-4 to support the wall mesh 1-1. The triangular bracket 1-2 is simultaneously in contact with the steel mesh 1-4 and the bottom plate mesh 1-6. The upper end of the support rod 1-5 is connected to the steel mesh 1-4, and the lower end is connected to the bottom plate mesh 1-6. A self-greening composite geomat 2 is arranged between the wall mesh 1-1 and the steel mesh 1-4, which has both anti-filtration and self-greening functions. The composite geomat 2 is laid close to the wall net 1-1, and the upper and lower edges of the composite geomat 2 extend inward and are respectively close to the top plate net 1-3 and the bottom plate net 1-6, that is, the lower edge of the composite geomat 2 is in contact with the bottom plate net 1-6, and the upper edge is in contact with the bottom plate net 1-3.

[0026] The bottom plate net 1-6, the wall net 1-1 and the top plate net 1-3 are prefabricated in the factory, folded and bundled and transported to the site, unfolded and assembled on site, and then filled with soil 7 between the bottom plate net 1-6 and the top plate net 1-3. Adjacent self-greening retaining units 1 are stacked on each other to form a flexible retaining structure.

[0027] The interception and drainage system 5 is respectively arranged in front of the slope foot, platform layer and top of the supporting structure of the full wall self-greening supporting structure; at the slope foot of the retaining structure, the two self-greening retaining units 1 are also provided with a composite corrugated drainage pad 6, which is used to timely discharge the water inside and behind the full wall self-greening supporting structure, playing a role similar to that of a traditional gravel drainage layer. Figure 3 As shown, the composite corrugated drainage mat 6 includes a polypropylene drainage core material layer 6-1 and polypropylene filament non-woven geotextile layers 6-2 located on both sides of the polypropylene drainage core material layer 6-1, and the polypropylene drainage core material layer 6-1 and the two layers of polypropylene filament non-woven geotextile layers 6-2 are formed by thermal bonding. Compared with the traditional gravel drainage layer, the composite corrugated drainage mat 6 is a factory prefabricated product with simple construction, controllable quality and excellent performance. A 6mm thick composite corrugated drainage mat can equivalently replace a 300mm thick gravel drainage layer.

[0028] A polyester yarn bunching grid 4 is arranged between two adjacent self-greening support units 1. The polyester yarn bunching grid 4 and the top plate net 1-3 and the bottom plate net 1-6 do not need to be connected by connecting rods, binding, etc., which simplifies the construction process.

[0029] The composite geotextile mat 2 is a finished product prefabricated in a factory, and is a layered material having a nutrient matrix layer (soil activation organic matrix, seeds). The soil activation organic matrix contained in the nutrient matrix layer has the function of accelerating seed germination and root development, so that the self-greening composite geotextile mat can achieve a self-greening effect after simple maintenance. The composite geotextile mat 2 can adopt the slope vegetation restoration ecological mat disclosed in the prior art with publication number CN 219547826 U.

[0030] The construction method of the full wall self-greening support structure includes the following steps:

[0031] Step 1: Confirm that the foundation meets the bearing capacity requirements and level it. For foundations that do not meet the requirements, take appropriate measures to treat the foundation and set up a base drainage system.

[0032] Step 2: The construction steps of the self-greening support unit 1 are as follows:

[0033] (1) Lay a layer of polyester yarn cluster grid 4 on the foundation or fill or top plate mesh 1-3, lay it flat and fix it;

[0034] (2) The top plate net 1-3, the wall net 1-1, and the bottom plate net 1-6 of the self-greening retaining unit 1 are assembled and placed in place, and the composite geotextile mat 2 is set as required;

[0035] (3) Fill the fill soil 7 that meets the requirements in layers onto the wall net 1-1 and compact it by rolling;

[0036] (4) Construct the upper layer of the upper retaining wall structure according to the designed slope, repeating (1), (2), and (3) until the designed elevation of the structure is reached.

[0037] Step 3: Set up a drainage system at the top of the construction.

[0038] Step 4: Carry out simple maintenance on the supporting structure wall, which can be carried out after the construction is completed, to facilitate the realization of the overall wall greening effect.

[0039] The embodiments of the utility model are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments of the utility model and the features in the embodiments can be combined with each other. The utility model is not limited to the above-mentioned specific implementation methods, which are merely illustrative and not restrictive. Under the enlightenment of the utility model, ordinary technicians in this field can also make many forms without departing from the scope of protection of the utility model and the claims, which all belong to the protection scope of the utility model.

Claims

1. A full wall self-greening support structure, characterized in that: It includes a number of self-greening retaining units (1) stacked on top of each other. Each self-greening retaining unit (1) includes a top plate net (1-3), a wall net (1-1), a bottom plate net (1-6), a composite geotextile mat (2) and a steel mesh (1-4). The upper edge of the wall net (1-1) is connected to the top plate net (1-3), and the lower edge of the wall net (1-1) is connected to the bottom plate net (1-6). The top plate net (1-3), the wall net (1-1) and the bottom plate net (1-6) together form a C-shaped structure. The composite geotextile mat (2) and the steel mesh (1-4) are arranged inside the wall net (1-1), and the composite geotextile mat (2) is located between the steel mesh (1-4) and the wall net (1-1); the composite geotextile mat (2) has a nutrient matrix layer.

2. A full wall self-greening support structure according to claim 1, characterized in that: The top plate net (1-3), the wall net (1-1) and the bottom plate net (1-6) are formed by folding a single net.

3. The full wall self-greening support structure according to claim 1 is characterized in that: The included angle between the wall net (1-1) and the bottom plate net (1-6) is 45°-70°.

4. The full wall self-greening support structure according to claim 1 is characterized in that: A triangular support (1-2) is arranged inside the steel mesh (1-4), and the triangular support (1-2) abuts against both the steel mesh (1-4) and the bottom plate net (1-6) at the same time.

5. The full wall self-greening support structure according to claim 1 is characterized in that: It further includes a support rod (1-5). The upper end of the support rod (1-5) is connected to the steel mesh (1-4), and the lower end is connected to the bottom plate net (1-6).

6. The full wall self-greening support structure according to claim 1 is characterized in that: The lower edge part of the composite geotextile mat (2) is attached to the bottom plate net (1-6), and the upper edge part is attached to the bottom plate net (1-6).

7. The full wall self-greening support structure according to claim 1 is characterized in that: A polyester yarn cluster grille (4) is arranged between two adjacent self-greening retaining units (1).

8. The full wall self-greening support structure according to claim 1 is characterized in that: A composite corrugated drainage mat (6) is further arranged between two of the self-greening retaining units (1). The composite corrugated drainage mat (6) includes a polypropylene drainage core layer (6-1) and polypropylene filament non-woven geotextile layers (6-2) located on both sides of the polypropylene drainage core layer (6-1).

9. The full wall self-greening support structure according to claim 1 is characterized in that: Fill soil (7) is filled between the top plate net (1-3) and the bottom plate net (1-6).

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