Metal mine ecological restoration engineering structure

Abstract

The utility model discloses a metal mine ecological restoration engineering structure which comprises a dam body, a restoration layer used for planting is arranged on the inclined face of the dam body, a fixing frame used for fixing the restoration layer is arranged on the restoration layer, and a plurality of installation grooves are evenly formed in the side surface of the restoration layer. The plurality of mounting grooves are sequentially formed from top to bottom along the inclined surface of the repairing layer, and water storage tanks for storing rainwater are arranged in the mounting grooves. The whole structure is simple, the remediation cost is low, the economic burden of ecological remediation is relieved, vegetation for soil fixation is planted through the remediation layer, the soil fixation capacity is improved, water and soil loss is prevented, and the ecological remediation effect is improved; the fixing frame is arranged on the repairing layer to fix the repairing layer, the situation that the repairing layer slides down along with rainwater when the rainwater scours down from the dam body is avoided, and therefore landslide is prevented, the fixing frame can be made of rubber or alloy and can be recycled after the repairing layer does not have the landslide risk after soil fixation is completed, and the repairing cost is further reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of mine ecological restoration, in particular to a metal mine ecological restoration engineering structure. Background Art

[0002] Mine remediation is a complex and important environmental remediation work, dedicated to the comprehensive and systematic remediation of pollution caused by mining wasteland. In the process of mining, with the extraction and processing of minerals, a large amount of unmanaged land that cannot be directly used for agriculture or other production activities will inevitably be generated. These lands are called mining wasteland.

[0003] Most of the existing mine ecological restoration structures are complex, which increases the restoration cost and is not ideal for preventing and controlling landslides and soil erosion. Therefore, we propose a metal mine ecological restoration engineering structure. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a metal mine ecological restoration engineering structure with a simple overall structure and low restoration cost, thereby reducing the economic burden of ecological restoration. By planting vegetation for soil fixation in the restoration layer, its soil fixation capacity is improved, thereby preventing soil erosion and improving the ecological restoration effect, which can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a metal mine ecological restoration engineering structure, including a dam body, a restoration layer for planting is arranged on the inclined surface of the dam body, a fixing frame for fixing the restoration layer is arranged on the restoration layer, and a plurality of installation grooves are evenly opened on the side surface of the restoration layer, and the plurality of installation grooves are arranged in sequence from top to bottom along the inclined surface of the restoration layer, and a water storage tank for accumulating rainwater is arranged in the installation groove.

[0006] As a preferred technical solution of the utility model, the repair layer includes a gravel layer, a fine sand layer and a planting soil layer arranged in sequence from top to bottom, and a geotextile is arranged between the repair layer and the dam body.

[0007] As a preferred technical solution of the present utility model, a filter screen is installed on the side of the water storage tank facing uphill.

[0008] As a preferred technical solution of the utility model, a water storage filling layer is arranged inside the water storage tank.

[0009] As a preferred technical solution of the utility model, drainage pipes are arranged at both ends of the water storage tank near the filter screen.

[0010] Compared with the prior art, the beneficial effects of the utility model are: the overall structure is simple, the repair cost is low, and the economic burden of ecological restoration is reduced. Vegetation for soil fixation is planted in the repair layer to improve its soil fixation ability, thereby preventing soil erosion and improving the ecological restoration effect. A fixing frame is set on the repair layer to fix it to prevent the repair layer from sliding down with the rainwater when rainwater washes down from the dam body, thereby preventing landslides. The fixing frame can be made of rubber or alloy, and can be recycled and reused after the soil fixation is completed and the repair layer no longer has the risk of landslide, further reducing the repair cost. When rainwater slides down along the repair layer, a part of it enters the water storage tank for temporary storage, thereby retaining more water on the surface. When the weather is hot or dry, it can be cooled by transpiration to reduce the water loss in the repair layer. At the same time, the water in the water storage tank can also be absorbed and utilized by the repair layer to improve the vegetation growth environment, which is more conducive to soil fixation, slope protection and ecological restoration. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] Figure 2 It is a side view structural schematic diagram of the utility model;

[0013] Figure 3 It is a partial structural schematic diagram of the utility model.

[0014] In the figure: 1 dam body, 2 repair layer, 21 geotextile, 22 planting soil layer, 23 fine sand layer, 24 gravel layer, 3 fixing frame, 4 installation groove, 5 water storage tank, 6 filter screen, 7 drainage pipe. DETAILED DESCRIPTION

[0015] 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.

[0016] See also Figure 1-3 The utility model provides a technical solution: a metal mine ecological restoration engineering structure, including a dam body 1 formed by a mountain, the dam body 1 is built on the hillside, and the cross-sectional shape is generally a right triangle. It can be specifically set according to the structure of the slope of the metal mine restoration area. A restoration layer 2 for planting is set on the inclined surface of the dam body 1. Vegetation for soil fixation is planted on the restoration layer 2, which can not only significantly enhance its soil fixation capacity, but also prevent soil and water loss and improve the ecological restoration effect.

[0017] Specifically, the repair layer 2 includes a gravel layer 24, a fine sand layer 23 and a planting soil layer 22 arranged in sequence from top to bottom. The planting soil layer 22 is high-quality pollution-free planting soil, which is used to plant vegetation for ecological restoration. It is preferably plants with strong soil-fixing ability such as tendon grass, campanula, crape myrtle, etc. The fine sand layer 23 has smaller particles, which enables it to better fill gaps and improve the stability and durability of the dam slope protection structure. At the same time, fine sand has a good effect in soil and water conservation. It can form a stable soil structure, resist wind erosion and water erosion, and maintain water and soil resources; the gravel layer 24 is mainly used to compact the fine sand layer 23 and the planting soil layer 22 on the lower side. At the same time, because the gravel particles are larger and the gaps are also larger, rainwater can more easily penetrate the gravel into the fine sand layer 23 and the planting soil layer 22, effectively avoiding soil and water loss caused by rainwater sliding down the slope, improving the water retention capacity of the repair layer 2, and thus improving the ecological restoration effect.

[0018] A fixing frame 3 for fixing the repair layer 2 is provided on the repair layer 2 to prevent the repair layer 2 from sliding down with the rainwater when rainwater washes down from the dam body 1, thereby preventing landslides. The fixing frame 3 can be made of rubber or alloy and can be recycled and reused after the soil consolidation is completed and the repair layer 2 no longer has the risk of landslides, further reducing the repair cost.

[0019] A plurality of installation grooves 4 are evenly arranged on the side surface of the repair layer 2, and the plurality of installation grooves 4 are arranged in sequence from top to bottom along the inclined surface of the repair layer 2. A water storage tank 5 for storing rainwater is arranged in the installation groove 4. When the rainwater slides down along the repair layer 2, a part of it enters the water storage tank 5 for temporary storage, thereby retaining more moisture on the surface. When the weather is hot or dry, the temperature can be reduced through transpiration, reducing the loss of water in the repair layer 2. At the same time, the water in the water storage tank 5 can also be absorbed and utilized by the repair layer 2, thereby improving the vegetation growth environment, which is more conducive to soil consolidation, slope protection and ecological restoration.

[0020] The preferred technical solution is that a geotextile 21 is arranged between the repair layer 2 and the dam body 1. The geotextile is a permeable geosynthetic material, usually made of synthetic fibers such as polyester, polypropylene or polyethylene. It has semi-permeable properties and can filter water to prevent soil loss. It is arranged on the lower side of the planting soil layer 22 and the outside of the entire repair layer 2, and can form a barrier to effectively prevent the loss of water and soil.

[0021] A preferred technical solution is that a filter screen 6 is installed on the side of the water tank 5 facing uphill. The interior of the water tank 5 is hollow. Rainwater flowing downward along the dam body and the repair layer 2 passes through the filter screen 6 and enters the water tank 5 for temporary storage. The diameter of the filter screen 6 is smaller than the diameter of the gravel, so as to prevent gravel from entering the water tank 5 and affecting its water storage function.

[0022] A further preferred technical solution is that a water storage filling layer is arranged inside the water storage tank 5. The water storage filling layer can be made of geotextile, sponge, cotton wool, etc., which can absorb moisture and prevent rapid volatilization of moisture in hot weather, so that the repair layer can effectively absorb moisture when there is a lack of water, thereby ensuring vegetation growth.

[0023] Furthermore, drainage pipes 7 are provided at both ends of the water storage tank 5 near the filter screen 6. When the water in the water storage tank 5 is full, excess rainwater can be discharged into the ditches on both sides through the drainage pipes 7 to avoid overflowing upward and affecting the structure of the repair layer 2, thereby preventing soil and water loss of the repair layer 2.

[0024] The undisclosed parts in the present utility model are all prior art, and their specific structures, materials and working principles are not described in detail. Although the embodiments of the present utility model have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the attached claims and their equivalents.

Claims

1. A metal mine ecological restoration engineering structure, comprising a dam body (1), characterized in that: A repair layer (2) for planting is arranged on the inclined surface of the dam body (1), a fixing frame (3) for fixing the repair layer (2) is arranged on the repair layer (2), and a plurality of mounting grooves (4) are evenly provided on the side surface of the repair layer (2), the plurality of mounting grooves (4) are arranged in sequence from top to bottom along the inclined surface of the repair layer (2), and a water storage tank (5) for storing rainwater is arranged in the mounting groove (4).

2. A metal mine ecological restoration engineering structure according to claim 1, characterized in that: The repair layer (2) comprises a gravel layer (24), a fine sand layer (23) and a planting soil layer (22) which are arranged in sequence from top to bottom, and a geotextile (21) is arranged between the repair layer (2) and the dam body (1).

3. The metal mine ecological restoration engineering structure according to claim 1 is characterized by: A filter screen (6) is installed on the side of the water storage tank (5) facing uphill.

4. A metal mine ecological restoration engineering structure according to claim 3, characterized in that: A water storage filling layer is provided inside the water storage tank (5).

5. A metal mine ecological restoration engineering structure according to claim 4, characterized in that: Drain pipes (7) are provided at both ends of the water storage tank (5) near the filter screen (6).

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