A contoured earth dragon greening system suitable for high and steep slope micro-steps in open-pit mines

Abstract

The present invention discloses a shaped soil dragon greening system suitable for micro-steps on high and steep slopes of open-pit mines, comprising a plurality of shaped soil dragons whose bottoms are laid on the micro-steps of the slopes, and each shaped soil dragon has plant seeds built therein. The shaped soil dragons are laid transversely along the slopes, and the shaped soil dragons are restricted to the micro-steps by a plurality of fixings fixed to the upstream and downstream of the corresponding micro-steps. The present invention solves the problem that plants are difficult to survive due to poor operating conditions, soil storage and water storage conditions when the step inclinations are diverse. The present invention is suitable for the technical field of greening management of micro-steps on high and steep slopes of open-pit mines.

Description

Technical Field

[0001] The invention belongs to the technical field of greening management of high and steep slopes in open-pit mines, and in particular relates to a contoured earth dragon greening system suitable for micro-steps of high and steep slopes in open-pit mines. Background Art

[0002] For a long time, due to the irregular mining of mineral resources, various mining geological environmental problems have arisen, especially the open-pit mining of mines has destroyed the original topography and vegetation, leaving the mountains devastated. The restoration and management of the mining geological environment generally aims to eliminate geological disasters and restore the mining geological environment. An important part of the management is the greening of the mine, especially for hard rocks with a slope greater than 60°, such as limestone, dolomite and igneous rock, whose surface is not easy to weather. The surface slope is large, and it is difficult for weathered deposits and sediments to be retained. The ability to retain soil and water is poor, making it difficult for vegetation to survive. However, there are generally many micro-steps. If these steps are relatively wide, other methods can be used for management. However, for steps with a width of less than 1m and steps with an outward tendency, the operating conditions, soil storage, and water storage conditions are very poor. It is difficult for geocells and vegetation bags to fit precisely with the complex step terrain, resulting in poor water blocking, absorption, and water storage effects, making it difficult for plants in geocells and vegetation bags to survive. Therefore, it is urgent to develop a contoured greening structure specifically for these micro steps to play the role of gathering soil and water to achieve local greening. Summary of the invention

[0003] The invention provides a contoured earth dragon greening system suitable for micro-steps on high and steep slopes of open-pit mines, which solves the problem of poor working conditions, soil and water storage conditions and difficulty in plant survival under the condition of diverse step inclinations.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0005] A shaped earth dragon greening system suitable for micro-steps on high and steep slopes of open-pit mines, comprising a plurality of shaped earth dragons whose bottoms are laid on the micro-steps of the slopes, each of which has plant seeds built in it. The shaped earth dragons are laid transversely along the slopes, and are restricted to the micro-steps by a plurality of fixings fixed upstream and downstream of the corresponding micro-steps.

[0006] Furthermore, the contoured earth dragon is a bag-like structure extending along the length direction of the micro-step, which is provided with a mixed planting material containing plant seeds, a geotextile layer and a nylon mesh layer in sequence from the inside to the outside. There is an upper limit space for loading the planting material between the upper part of the mixed planting material and the geotextile layer, and a number of holes are punctured at intervals on the upper part of the bag-like structure.

[0007] Furthermore, the upper end of the shaped earth dragon is closed by sewing the geotextile layer and the nylon mesh layer, and the two ends of the shaped earth dragon in the length direction are tied and closed by anti-aging nylon ropes.

[0008] Furthermore, the mesh number of the anti-aging nylon mesh is 20-40 meshes.

[0009] Furthermore, the mixed planting material is formed by mixing loam, water retaining agent, gravel, 0.1% biological fertilizer, wheat bran and the plant seeds.

[0010] Furthermore, the fixing member includes expansion bolts, and the expansion bolts are installed upstream and downstream of the micro-step.

[0011] Furthermore, the fixing member includes anchoring nails, and the anchoring nails are installed upstream and downstream of the micro-step.

[0012] Furthermore, the corresponding upstream and downstream fixing members are connected via binding belts, and the upper part of the contoured earth dragon is bounded on the micro-step by the binding belts.

[0013] Furthermore, at least two shaped earth dragons are laid on each of the micro-steps, and the bottoms of the at least two shaped earth dragons cover the upper surface of the corresponding micro-step.

[0014] Since the present invention adopts the above-mentioned structure, the technical progress achieved by it compared with the prior art is as follows: the present invention is an off-site prefabricated structure, and when the shaped earth dragon is placed on the micro-step, its own shape can change with the terrain, thereby ensuring the maximum contact area with the slope surface, effectively intercepting the slope runoff, and having the highest efficiency in intercepting slope water; and the shaped earth dragon is restricted on the micro-step by a fixing part to prevent it from falling off the micro-step in bad weather; in summary, it can be seen that the present invention is suitable for micro-steps of different inclinations, and effectively solves the problems of poor operating conditions, soil and water storage conditions, the ability of the shaped earth dragon to intercept slope water and store water, and the difficulty of plants to survive. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0016] In the attached picture:

[0017] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0018] Figure 2 This is a schematic structural diagram of a contoured earth dragon according to an embodiment of the present invention;

[0019] Figure 3 It is a cross-sectional view of the transverse structure of the contoured earth dragon according to an embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of the structure of the geotextile layer and the nylon mesh layer when they are not sewn together according to an embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of the structure of an expansion bolt according to an embodiment of the present invention;

[0022] Figure 6 This is a schematic diagram of the structure of an anchor nail according to an embodiment of the present invention;

[0023] Figure 7 This is a schematic diagram of the structure of another anchoring nail according to an embodiment of the present invention;

[0024] Figure 8 It is a schematic diagram of the structure in which a plurality of contoured earth dragons are laid on micro-steps according to an embodiment of the present invention.

[0025] Marked parts: 1-slope, 2-micro-step, 3-shaped earth dragon, 301-mixed planting material, 302-geotextile layer, 303-nylon mesh layer, 304-plant seeds, 305-planting material loaded into the upper limit space, 306-anti-aging nylon rope, 4-fixing parts, 401-expansion bolts, 402-anchor nails, 403-fixing rods, 5-binding belts. DETAILED DESCRIPTION

[0026] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0027] The present invention discloses a profiling earth dragon 3 greening system suitable for high and steep slope 1 micro-step 2 of open-pit mines, such as Figure 1 As shown, it includes a plurality of shaped earth dragons 3, which are respectively placed on each micro-step 2 of the slope 1, and the bottom of each shaped earth dragon 3 is laid on the upper surface of the slope 1. The shaped earth dragon 3 is laid along the transverse direction of the slope 1. The shaped earth dragon 3 is restricted to the micro-step 2 by a plurality of fixing members 4 respectively fixed on the upstream and downstream of the corresponding micro-step 2. These fixing members 4 are arranged at intervals along the length direction of the micro-step 2, and each shaped earth dragon 3 has plant seeds 304 built in. The working principle and advantages of the present invention are as follows: the shaped earth dragon 3 of the present invention is an off-site prefabricated structure. When the shaped earth dragon 3 is placed on the micro-step 2, its own shape can change with the terrain, ensuring the maximum contact area with the surface of the slope 1, effectively intercepting the slope runoff, and having the highest efficiency in intercepting slope water; and the shaped earth dragon 3 is restricted on the micro-step 2 by the fixing part 4 to prevent it from falling off the micro-step 2 in bad weather; in summary, the present invention is suitable for micro-steps 2 with different inclinations, and effectively solves the problems of poor working conditions, soil storage and water storage conditions, the ability of the shaped earth dragon 3 to intercept slope water and store water, and the difficulty of plants to survive.

[0028] As a preferred embodiment of the present invention, Figure 2-4 As shown, the shaped earth dragon 3 is a bag-like structure extending along the length direction of the micro-step 2, which is sequentially provided with a mixed planting material 301 containing plant seeds 304, a geotextile layer 302 and a nylon mesh layer 303 from the inside to the outside, and there is an upper limit space 305 for the planting material to be loaded between the upper part of the mixed planting material 301 and the geotextile layer 302, and a plurality of holes are pierced at intervals in the upper part of the bag-like structure. In addition, the upper end of the shaped earth dragon 3 of this embodiment is closed by sewing the geotextile layer 302 and the nylon mesh layer 303, and the two ends of the shaped earth dragon 3 in the length direction are tied and closed by anti-aging nylon ropes 306. The mesh number of the anti-aging nylon mesh is 20-40 meshes. This structure is a ground prefabricated part, and the manufacturing process is: laying the anti-aging nylon mesh → laying the geotextile → laying the mixed planting material 301 → rolling up the anti-aging nylon mesh and the geotextile relatively → sewing the mesh → cutting according to the required length → tying the two ends. The advantages of this embodiment are: the outer shape of the profiling earth dragon 3 is an elliptical column, that is, an elliptical column that is not filled inside (the filling volume is 2 / 3-3 / 4 of the total capacity). When placed on the micro-step 2, its own shape can change with the terrain, ensuring the maximum contact area with the surface of the slope 1, and effectively intercepting the slope runoff. It has the highest efficiency in intercepting slope water; the profiling earth dragon 3 has a 20-40 mesh anti-aging nylon mesh as the outer layer wrapping, and a geotextile in the middle layer. The anti-aging nylon mesh provides mechanical support for the structure, and its gaps can achieve two-way unimpeded flow of water. The middle layer of geotextile first ensures that the structure absorbs and stores water when water comes from the slope, and releases water to the outside when the water storage capacity of the structure is oversaturated, and secondly ensures that the vegetation layer particles of the mixed planting material 301 in the structure do not leak.

[0029] As a preferred embodiment of the present invention, the mixed planting material 301 contains "89% loam + 0.9% water retaining agent + 5% anti-scour gravel + 0.1% biological fertilizer + 5% wheat bran + plant seeds 304". In the mixed planting material 301, plant varieties are arranged according to different regions and terrain conditions, with the principle of combining grass and shrubs, and the plant seeds 304 are processed in advance to ensure that they germinate in batches to avoid the impact of natural disasters. The number of seeds is based on the number that the mixed planting material 301 can carry, so as to avoid the seedlings from competing for water and fertilizer due to overcrowding, resulting in poor seedling conditions, and reduced drought resistance and barrenness resistance; loam and high-efficiency water retaining agent are mixed in a certain proportion to increase the water storage capacity to ensure the water needs of plant growth during the dry season.

[0030] As a preferred embodiment of the present invention, Figure 5 , Figure 6As shown, the fixing member 4 is an expansion bolt 401, and the expansion bolt 401 is installed upstream and downstream of the micro-step 2. The fixing member 4 can also be an anchor nail 402, and the anchor nail 402 is installed upstream and downstream of the micro-step 2. The installation process of this embodiment is: the expansion bolt 401 or the anchor nail 402 is driven into the outside of the micro-step 2 → the shaped earth dragon 3 is placed inside the expansion bolt 401 or the anchor nail 402 → the shaped earth dragon 3 is stepped on to make it in close contact with the rock wool of the micro-step 2 → multiple rows of holes are drilled above the shaped earth dragon 3 at intervals of 20 cm → soil stabilizer (LDC) is sprayed on the surface of the shaped earth dragon 3 to soak the soil surface (spray 1 kg of soil stabilizer solution per square meter, and the solution ratio is 1:8) to improve the soil's anti-scouring ability. And in order to make the shaped earth dragon 3 more stably fixed on the micro-step 2, such as Figure 1 , Figure 7 As shown, the corresponding upstream and downstream fixing members 4 are connected by a binding belt 5, and the upper part of the contoured earth dragon 2 is bound to the micro-step 2 by the binding belt 5. When the fixing member 4 is an anchor nail 402, a fixing rod 403 is welded on the anchor nail 402, and the fixing rod 403 is used to bind and fix the end of the binding belt 5.

[0031] As a preferred embodiment of the present invention, Figure 8 As shown, when the micro-step 2 is wider, at least two contoured soil beads 3 are laid on the micro-step 2 , and the bottoms of these contoured soil beads 3 cover the upper surfaces of the corresponding micro-steps 2 .

[0032] The present invention also has the following advantages:

[0033] After the plant growth reaches the peak period, the plant roots will penetrate the outer net, enter the cracks of the rock layer, and become one with the mountain, exerting the soil-fixing effect of the plant roots, and enhancing the anti-scouring ability of the soil. Because this system is made of non-metallic or loose materials except for the expansion bolts 401 or the anchor nails 402, even if the system fails due to extreme heavy rainfall, it will not fall down in a concentrated manner to cause safety hazards; the present invention can also become a nutrient relay station for climbing plants in the climbing process without adding plant seeds 304.

[0034] 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 replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A contoured earth dragon greening system suitable for high and steep slope micro-steps in open-pit mines, characterized by: The invention comprises a plurality of shaped soil dragons, each of which has its bottom laid on each micro-step of the slope, and each shaped soil dragon has plant seeds inside. The shaped soil dragons are laid transversely along the slope, and are restricted to the micro-steps by a plurality of fixing parts fixed to the upstream and downstream of the corresponding micro-steps. The shaped soil dragon is a bag-like structure extending along the length direction of the micro-steps, and is provided with a mixed planting material containing plant seeds, a geotextile layer and a nylon mesh layer in sequence from the inside to the outside. An upper limit space for placing the planting material is provided between the upper part of the mixed planting material and the geotextile layer, and a plurality of holes are pierced at intervals on the upper part of the bag-like structure. The upper end of the shaped soil dragon is sewn by sewing the geotextile layer and the nylon mesh layer. The two ends of the shaped earth dragon in the length direction are tied with anti-aging nylon ropes and closed; the mixed planting material is a mixture of loam, water-retaining agent, gravel, 0.1% biological fertilizer, wheat bran and the plant seeds; the fixing parts include expansion bolts, which are installed upstream and downstream of the micro-steps; the fixing parts include anchor nails, which are installed upstream and downstream of the micro-steps; the corresponding upstream and downstream fixing parts are connected by binding belts, and the upper part of the shaped earth dragon is bound to the micro-step by the binding belts; at least two shaped earth dragons are laid on each of the micro-steps, and the bottoms of the at least two shaped earth dragons cover the upper surface of the corresponding micro-steps.

2. The contoured earth dragon greening system suitable for high and steep slope micro-steps in open-pit mines according to claim 1 is characterized by: The mesh number of the nylon mesh layer is 20-40 meshes.

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