An ecological restoration system and method for a high and steep rock slope of a mine

Abstract

The application discloses a mine high and steep rock slope ecological restoration system and method, which is arranged on a slope and comprises a net chain arranged on the slope, the net chain being anchored on the slope through a plurality of anchor rods, a plurality of planting grooves being arranged on the slope, a planting assembly being arranged in each planting groove, and the net chain being arranged between the planting grooves; a fixing ring is fixedly connected to the net chain, a plurality of water storage holes for storing rainfall are arranged on the slope, the fixing ring is fixedly installed in the water storage holes, and a water pumping assembly for pumping up the stored water is arranged in the water storage holes; a water storage pool is connected to the lower portion of the slope; and a base material layer and a vegetation layer are respectively sprayed on the surface of the slope. The application can fix the high and steep rock slope in an ecological manner, reduce the erosion of water and soil loss to the slope, improve the water and soil conservation capacity, and enhance the self-ecological restoration function.

Description

Technical Field

[0001] This invention relates to the field of slope ecological restoration technology, and in particular to an ecological restoration system and method for steep rock slopes in mines. Background Technology

[0002] In recent years, with the accelerated pace of ecological civilization construction, mine ecological restoration has become increasingly urgent and necessary. Mine ecological environment protection has received increasing attention, and the state has successively issued relevant policy documents on the scientific management of mines to strengthen mine ecological restoration. Currently, research on mine ecological restoration has also increased significantly, but it still mainly focuses on the ecological restoration and management of abandoned coal and metal mine sites, and tends to be more of a review, case study, and practical research on greening technologies. Systematic experimental research on open-pit quarries remains rare. Meanwhile, some existing mining areas have suffered damage to their original landforms and vegetation due to long-term mining, resulting in reduced vegetation cover; furthermore, due to exposed slopes, severe weathering of the top sandstone, and steep slopes, vegetation restoration is extremely difficult. Therefore, there is an urgent need to develop an ecological restoration system and method for steep rock slopes in mines to solve the above problems, which is of great significance for promoting the healthy and sustainable development of mine ecological restoration. Summary of the Invention

[0003] To address the aforementioned technical problems, this invention proposes an ecological restoration system and method for steep rock slopes in mines. This system can ecologically stabilize steep rock slopes, reduce soil erosion, improve soil and water conservation capabilities, and enhance self-ecological restoration functions.

[0004] To achieve the above objectives, the present invention provides the following solution:

[0005] An ecological restoration system for steep rocky slopes in mines is installed on the slope, including a mesh chain installed on the slope and anchored to the slope by several anchor bolts. Several rows of planting troughs are formed on the slope, and planting components are installed within each planting trough. The mesh chain is positioned between the planting troughs. The mesh chain is fixedly connected to fixing rings. Several water-retaining holes for accumulating rainwater are formed on the slope, and the fixing rings are fixedly installed within the water-retaining holes. A water-blowing component for amplifying the accumulated water is installed inside the water-retaining holes. A water-collecting pool is connected below the slope. The slope surface is coated with a substrate layer and a vegetation layer.

[0006] Preferably, the water-blowing assembly includes a mounting ring, the side wall of which has several mounting holes. An air pump is fixedly installed in each mounting hole. One end of the piston rod of the air pump is fixedly connected to a universal joint, and one end of the universal joint is fixedly connected to a drive rod. Several elastic ribs are fixedly connected to the bottom end of the drive rod, and one end of each rib is fixedly connected to the bottom end of the inner wall of the mounting ring. The top surface of the mounting ring is fixedly connected to the bottom surface of the fixed ring, and the mounting ring is fixedly installed on the inner wall of the water storage hole. Several air outlets are opened on the bottom surface of the mounting ring, and the air outlets are fixedly connected to and communicate with the air outlet end of the air pump. An air pipe is fixedly connected to and communicates with each air outlet, and one end of the air pipe is fixedly connected to and communicates with an air bladder. The air bladder is located at the bottom end of the water storage hole, and the air bladder is fixedly connected to and communicates with a one-way solenoid valve.

[0007] Preferably, the planting trough protrudes from the slope surface, and there is a gap between adjacent planting troughs in the same row, with all planting troughs in adjacent rows being staggered.

[0008] Preferably, the planting assembly includes a planting board and an auxiliary planting board. The planting board is fixedly connected to the side wall of the planting trough by rivets, and the bottom surface of the planting board is fixedly connected to the top surface of the auxiliary planting board. The top surface of the planting board has a plurality of planting holes for supporting climbing plants. The auxiliary planting board includes non-woven fabric and a culture medium. The culture medium is covered by the non-woven fabric, and climbing plants are planted in the culture medium. The non-woven fabric is fixedly connected to the bottom surface of the planting board.

[0009] Preferably, the planting board is made of bamboo or crushed and pressed wheat straw.

[0010] Preferably, the mesh chain includes several interconnected links, with anchor bolts fixedly connected between adjacent links, and the links are fixedly connected to the slope via the anchor bolts.

[0011] Preferably, the slope surface is provided with a plurality of grooves, all of which are interconnected; the chain link is disposed in the groove; and the groove is connected to the water collection pool.

[0012] Preferably, the drive rod is a hollow plastic rod, and a number of fan blades are fixedly connected to the top of the outer side of the drive rod.

[0013] An ecological restoration method for steep rock slopes in mines includes the following steps:

[0014] S1. Slope Reduction and Risk Mitigation: The steep sections of the slope are manually removed to reduce the slope to below 71°, and the planting trough and the trench are excavated on the slope surface; the water collection pool connected to the trench is constructed using the rubble from the steep sections of the removed slope.

[0015] S2. Component installation: The planting assembly is fixedly connected to the planting trough using the rivets; the mesh chain is placed in the trench and the mesh chain and the slope are fixedly connected using the anchor rods;

[0016] S3. Surface spraying: Spraying a substrate layer and a vegetation layer onto the surface of the slope respectively;

[0017] S4. Plant Watering: The solenoid valve is remotely activated to use the water pumping component to push the accumulated water to replenish the planting trough, or the water in the water pool is manually extracted for irrigation.

[0018] Preferably, in step S3, before spraying the substrate layer and the vegetation layer, a non-woven fabric layer needs to be laid on the slope surface.

[0019] Compared with the prior art, the present invention has the following advantages and technical effects:

[0020] This invention fixes the mesh chain to the slope surface to reinforce unstable slopes. The mesh chain is also reinforced by anchor bolts, which are anchored to the voids on the slope surface and reinforced by grouting with concrete, thereby reducing the risk of slope collapse.

[0021] The planting troughs opened on the surface of the slope of the present invention can not only collect rainwater for later use, but also provide space for planting components to grow, thereby improving the survival rate of green plants.

[0022] The water collection tank of this invention can make full use of the rainwater left on the slope, which facilitates the replenishment of water sources during droughts and floods, and reduces the difficulty of water replenishment.

[0023] The water storage holes of this invention can store rainwater using deep holes, which can both increase the water storage capacity and reduce water evaporation, thus reducing water loss. Attached Figure Description

[0024] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0025] Figure 1 This is a side view of the structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the slope's side view structure;

[0027] Figure 3 This is a side view of the water-blowing assembly.

[0028] Figure 4 This is a schematic diagram of the exploded structure of the water-blowing assembly;

[0029] The components are as follows: 1. Slope; 2. Planting trough; 3. Fixing ring; 4. Water storage hole; 5. Water collection pool; 6. Mounting ring; 7. Mounting hole; 8. Air pump; 9. Universal joint; 10. Drive rod; 11. Rib; 12. Air pipe; 13. Air bag; 14. Solenoid valve; 15. Fan blade; 16. Planting board; 17. Auxiliary planting board; 18. Planting hole; 19. Chain link; 20. Anchor bolt; 21. Trench; 22. Booster water pump gun. Detailed Implementation

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] It should be noted that all components in the technical solution of this application require necessary additional facilities for water supply, oil supply, and power supply for driving and / or control. Unless otherwise stated, they are assumed to be used and equipped with existing technology and no special explanation is required.

[0032] It should be noted that, in order to make the above-mentioned objectives, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] Depend on Figures 1-2 The system described is an ecological restoration system for steep rocky slopes in mines. It is installed on slope 1 and includes a mesh chain installed on slope 1. The mesh chain is a double-layered three-dimensional mesh with a porosity of over 90%, made of monofilament PP or PA fibers with a diameter greater than 1.8mm, a mesh size of 6mm*6mm, and a height of 0.5cm-1cm. A non-woven fabric layer is placed between the mesh chain and the surface of slope 1. The mesh chain is anchored to slope 1 by several anchor rods 20. Several rows of planting troughs 2 are provided on slope 1, and planting components are installed within the planting troughs 2. The mesh chain is positioned between the planting troughs 2. Fixing rings 3 are fixed to the mesh chain. Several water-collecting holes 4 are provided on slope 1 for accumulating rainwater. The fixing rings 3 are fixedly installed within the water-collecting holes 4, and the inner cavity of the water-collecting holes 4 is equipped with a water-draining component for amplifying the accumulated water. A water collection pool 5 is connected below slope 1. The surface of slope 1 is coated with a substrate layer and a vegetation layer. Planting trough 2, substrate layer and vegetation layer can play a role in water storage and long-term fertilizer supply for green plants, and alleviate the problem of water and fertilizer shortage for plant growth on rock slopes during drought.

[0034] Furthermore, the substrate layer is prepared by selecting erosion-resistant substrates, microbial fertilizers, soil, etc., and using a wet spraying machine to spray the prepared substrate onto the rock wall and allow it to dry slightly; the preferred spraying thickness is 8cm-10cm.

[0035] Furthermore, the substrate for the vegetation layer is selected from erosion-resistant substrates, soil, water-retaining agents, microbial fertilizers, etc. The erosion-resistant substrates and mixed plant seeds are sprayed onto the surface of the substrate layer using a hydroseeding machine, with a spraying thickness of 1cm-2cm.

[0036] This invention uses a mesh chain fixedly connected to the surface of slope 1 to protect against unstable slope collapses and rockfalls. The mesh chain is further reinforced with anchor bolts, which are preferentially anchored to voids on the surface of slope 1 and reinforced with concrete grouting, reducing the risk of slope 1 cracking. Planting troughs 2 created on the surface of slope 1 can both collect rainwater for future use and provide space for planting components, improving the survival rate of vegetation. A water collection pond 5 can fully utilize the rainwater left on slope 1, facilitating water replenishment during droughts and floods, reducing the difficulty of water replenishment.

[0037] Further optimize the plan, by Figures 3-4 As shown, the water-blowing assembly includes a mounting ring 6. Several mounting holes 7 are formed on the side wall of the mounting ring 6. An air pump 8 is fixedly installed in each mounting hole 7. One end of the piston rod of the air pump 8 is fixedly connected to a universal joint 9. A drive rod 10 is fixedly connected to one end of the universal joint 9. The drive rod 10 is a hollow plastic rod, preferably ABS or PVC, utilizing the lightweight advantage of plastic compared to copper or iron of the same volume to facilitate driving the air pump 8. Several fan blades 15 are fixedly connected to the top of the outer side of the drive rod 10. The fan blades 15 are easily blown by natural wind, increasing the driving force of the drive rod 10. Several elastic ribs 11 are fixedly connected to the bottom end of the drive rod 10. The ribs 11 are in a taut state, and one end of each rib is fixedly connected to the bottom end of the inner wall of the mounting ring 6. The ribs 11 constrain the drive rod 10 to the center of the mounting ring 6, enabling the air pump 8 to be driven and returned to its original position by the ribs 11 regardless of the direction in which the drive rod 10 rotates. The top surface of the mounting ring 6 is fixedly connected to the bottom surface of the fixing ring 3, and the mounting ring 6 is fixedly installed on the inner wall of the water storage hole 4; the bottom surface of the mounting ring 6 has several air outlets, which are fixedly connected to and connected to the air outlet end of the air cylinder; the air outlets are fixedly connected to and connected to the air pipe 12, one end of the air pipe 12 is fixedly connected to and connected to the air bag 13, the air bag 13 is set at the bottom end of the water storage hole 4, and the air bag 13 is fixedly connected to and connected to the one-way solenoid valve 14.

[0038] Furthermore, the water storage hole 4 is preferably 1m deep and 15cm-20cm in diameter to increase water storage capacity and reduce evaporation.

[0039] Furthermore, in order to improve the operating efficiency of the air pump 8, the diameter of the mounting hole 7 is larger than the outer diameter of the air pump 8, and the end of the air pump 8 away from the drive rod 10 is rotatably connected to the mounting hole 7. When the drive rod 10 drives the air pump 8, the air pump 8 can deflect at a certain angle, reduce the driving force, and improve the pumping efficiency.

[0040] Furthermore, the solenoid valve 14 integrates a PLC controller with a remote communication unit, which communicates with a remote server to control the opening and closing of the solenoid valve 14, reducing the cost of manual operation. The solenoid valve 14 also enables unidirectional control of airflow from the air bladder 13 to the inner cavity of the water storage hole 4.

[0041] Furthermore, the air outlet of the air pump 8 is integrated with a one-way valve that is fixedly connected to and communicates with it, so that gas can only flow from the air pump 8 to the air pipe 12, preventing the air bag 13 from forcing air back into the air pump 8.

[0042] The design is further optimized by setting the planting trough 2 out of the surface of the slope 1, with gaps between adjacent planting troughs 2 in the same row, and all planting troughs 2 in adjacent rows are staggered. By using the staggered planting troughs 2, the natural rainwater can be carried down the slope 1 and continuously collected by the planting troughs 2, which slows down the flow of water and reduces the scouring force of the water flow.

[0043] The planting components are further optimized, including a planting board 16 and an auxiliary planting board 17. The planting board 16 is fixedly connected to the side wall of the planting trough 2 by rivets, preventing it from being washed away by accumulated water and detaching from the slope 1, thus improving the stability of the climbing plants. The bottom surface of the planting board 16 is fixedly connected to the top surface of the auxiliary planting board 17, and the top surface of the planting board 16 has several planting holes 18 for supporting the climbing plants. The auxiliary planting board 17 includes non-woven fabric and a culture medium (not shown in the attached figure). The culture medium is covered by the non-woven fabric, and climbing plants are planted in the culture medium. The culture medium is gradually absorbed by the climbing plants, and the non-woven fabric will also age and weather as the culture medium gradually decreases, becoming nutrients for the climbing plants. The non-woven fabric is fixedly connected to the bottom surface of the planting board 16. The planting board 16 is made of bamboo or wheat straw powder and pressed. The planting board 16, made of powder and pressed material, can also be completely biodegradable, and the residue after degradation accumulates in the planting trough 2, eventually forming soil for cultivating plants.

[0044] Furthermore, climbing plants such as Virginia creeper, Euonymus fortunei, kudzu, and Virginia creeper are preferred. The types of plants added to the vegetation layer are shown in the table below. By combining grasses and shrubs, and according to the hydrological and climatic conditions of the construction site, cold and warm season mixed planting can be carried out to improve the speed of ecological environment establishment.

[0045]

[0046]

[0047] In another embodiment of the present invention, the mesh chain includes several interconnected links 19, with anchor rods 20 fixedly connected between adjacent links 19. The links 19 are fixedly connected to the slope 1 via the anchor rods 20. Several grooves 21 are formed on the surface of the slope 1, and all grooves 21 are interconnected. The links 19 are disposed within the grooves 21, and the cross-sectional dimensions of the grooves 21 are larger than the cross-sectional dimensions of the links 19. The placement of the links 19 within the grooves 21 facilitates the guidance of water flow along the grooves 21 into the water collection pool 5, and also facilitates the introduction of water flow into the planting trough 2. The grooves 21 are connected to the water collection pool 5.

[0048] An ecological restoration method for steep rock slopes in mines includes the following steps:

[0049] S1. Slope reduction and hazard mitigation: The steep sections of slope 1 are manually removed to reduce the slope to below 71°. Planting troughs 2 and trenches 21 are excavated on the surface of slope 1. A water collection pool 5 connected to the trenches 21 is constructed using the rubble from the steep sections of the removed slope 1.

[0050] The face of the steep rock slope is appropriately cut away to reduce its gradient and achieve the purpose of slope reduction and load reduction. A reduction to 71° is preferred, which not only reduces the amount of excavation work but also lowers the risk of rockfall. Simultaneously, the cut rock fragments can be reused to construct the side channel of the water collection pond 5, reducing the amount of engineering materials used and lowering the cost of remediation. Furthermore, to facilitate irrigation of the slope vegetation, a pressurized water pump 22 can be installed in the water collection pond 5 to draw water from the pond 5 for spraying the vegetation.

[0051] S2. Component installation: The planting components are fixedly connected to the planting trough 2 by rivets; the mesh chain is set in the trench 21 and the mesh chain and the slope 1 are fixedly connected by the anchor bolts 20;

[0052] Seeds of climbing plants are inserted into the growing medium through planting holes 18 to facilitate germination. The plants can pass through the holes 18 and are supported by planting boards 16. As the plants germinate and take root, their roots firmly bind to the growing medium and gradually penetrate the non-woven fabric, securing them to the slope 1 via planting troughs 2. To facilitate the collection of rainwater on the slope 1, as well as rainwater infiltrating the substrate and vegetation layers, trenches 21 created on the slope 1 surface quickly guide accumulated water to planting troughs 2 and water collection pools 5. This completes the drainage and storage of rainwater, preventing it from accumulating in the substrate and vegetation layers and causing erosion and mudflows.

[0053] The fixing ring 3 is fixedly installed inside the water storage hole 4. The water storage hole 4 has a certain volume to retain rainwater, and the top part of the water storage hole 4 is shielded by the water blowing component to reduce water evaporation.

[0054] S3. Surface spraying: The substrate layer and the vegetation layer are sprayed on the surface of slope 1 respectively. Spraying the substrate layer and the vegetation layer on the surface of slope 1 can further increase the greening and ecological construction of the slope 1. By utilizing the ingredients of the substrate layer and the vegetation layer to penetrate into the slope and the roots of the green plants to attach, the integrity of slope 1 is improved and the probability of erosion and detachment of the substrate layer and the vegetation layer is reduced.

[0055] S4. Plant Watering: Remotely activate solenoid valve 14 to use water pumping component to push water in the planting trough 2 or manually extract water from the water pool 5 for irrigation.

[0056] When the environment of slope 1 experiences little rain or drought, water is pumped from the water collection pool 5 by manual use of a booster water pump gun 22 and sprayed onto the surface of slope 1. This fully utilizes the accumulated water, reduces the cost of transporting and extracting additional irrigation water, and promotes the healthy development of the ecological environment.

[0057] When the water in the reservoir 5 is insufficient for irrigation, the solenoid valve 14 is remotely activated to close the flow. At this time, the drive rod 10 will swing irregularly around the connection point between the universal joint 9 and the drive rod 10 under the action of external wind. No matter which direction the drive rod 10 swings, it will pull the air pump 8 in the opposite direction of swing. When the wind direction changes, the bottom rib 11 will pull the bottom of the drive rod 10 to straighten it. At the same time, it will pull the air pump 8 in the same swing direction as the drive rod 10 to replenish air to the air pipe 12. The air will be continuously pushed into the air bag 13 through the continuous swing of the drive rod 10. Because the solenoid valve 14 is closed, the air bag 13 will continuously inflate. The inflation of the air bag 13 will squeeze the space in the water storage hole 4. The air bag 13 will inflate and continuously discharge the water in the water storage hole 4 and replenish the planting trough 2, substrate layer and vegetation layer on the surface of the slope 1 along the ditch 21 to alleviate the drought of the green plants.

[0058] To further optimize the scheme, in step S3, before the substrate layer and vegetation layer are sprayed, a non-woven fabric layer needs to be laid on the surface of slope 1.

[0059] A non-woven fabric layer is laid on the surface of slope 1 to cover the surface of slope 1, trench 21 and net chain. This can increase the adhesion of the substrate layer and vegetation layer when spraying, prevent the sprayed substrate layer from slipping off slope 1, and the viscous substrate layer and non-woven fabric layer gradually penetrate each other, improve the ecological naturalization of slope 1 and reduce the need for subsequent human intervention.

[0060] Furthermore, in order to improve the survival rate of the hydroseeded vegetation and expedite the ecological restoration of slope 1, it is preferable to add an initial maintenance step after completing steps 1-4 above: namely...

[0061] After construction, when temperatures are high and there is no rainfall, to maintain substrate moisture and prevent scorching of buds and seedlings, it is necessary to spray a 2cm layer of vegetation daily using a high-pressure sprayer. When spraying, control the distance between the nozzle and the slope, and the speed of movement. Spraying should be even, taking care to avoid creating water flow that could wash away soil, water-retaining agents, microbial fertilizers, and seeds from the vegetation layer. Depending on the growth of the plants, apply high-efficiency fertilizers and pesticides to promote seedling growth and prevent pests and diseases.

[0062] Except for areas where there is no natural precipitation and watering is required for maintenance, different seasonal topdressing is carried out depending on the actual conditions and design requirements.

[0063] A. Two months after the completion of hydroseeding, apply fertilizer once. The amount of fertilizer is: 5g-10g / ㎡ of water-soluble silicon fertilizer and about 10g-20g / ㎡ of compound fertilizer.

[0064] B. Fertilizer application rate in spring (April-May): 15g / m² of calcium magnesium phosphate fertilizer and 20g / m² of active bacteria fertilizer; Fertilizer application rate in autumn (September-October): 30g / m² of compound fertilizer.

[0065] The above fertilization standards are initial standards. After the substrate layer and vegetation layer are stabilized, the actual amount of fertilizer will be flexibly adjusted according to the vegetation growth and season, and human intervention will be gradually reduced.

[0066] Pests and diseases are the biggest enemies of plant growth. In the prevention and control of pests and diseases, different drugs should be used according to different pests and diseases to achieve "targeted treatment and comprehensive prevention and control" in order to save money and manpower, effectively control the spread of pests and diseases, ensure the healthy growth of plants, and improve the greening effect.

[0067] The above are merely preferred embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An ecological restoration system for steep rocky slopes in mines, installed on slope (1), characterized in that, The system includes a net chain installed on the slope (1), which is anchored to the slope (1) by several anchor rods (20). Several rows of planting troughs (2) are provided on the slope (1), and planting components are installed in the planting troughs (2). The net chain is installed between the planting troughs (2). The net chain is fixed with a fixing ring (3). Several water storage holes (4) for accumulating rainwater are provided on the slope (1). The fixing ring (3) is fixedly installed in the water storage holes (4). The water storage holes (4) are equipped with a water-blowing component for gushing water. A water collection pool (5) is connected to the bottom of the slope (1). The surface of the slope (1) is coated with a substrate layer and a vegetation layer. The water-blowing assembly includes a mounting ring (6), the side wall of which is provided with several mounting holes (7). An air pump (8) is fixedly installed in the mounting holes (7). One end of the piston rod of the air pump (8) is fixedly connected to a universal joint (9). One end of the universal joint (9) is fixedly connected to a drive rod (10). The bottom end of the drive rod (10) is fixedly connected to several elastic ribs (11). One end of each rib (11) is fixedly connected to the bottom end of the inner wall of the mounting ring (6). 6) The top surface is fixedly connected to the bottom surface of the fixing ring (3), and the mounting ring (6) is fixedly installed on the inner wall of the water storage hole (4); the bottom surface of the mounting ring (6) is provided with several air outlets, and the air outlets are fixedly connected to and connected to the air outlet end of the air cylinder; the air outlets are fixedly connected to and connected to the air pipe (12), one end of the air pipe (12) is fixedly connected to and connected to the air bag (13), the air bag (13) is set at the bottom end of the water storage hole (4), and the air bag (13) is fixedly connected to and connected to the one-way solenoid valve (14).

2. The ecological restoration system for steep rocky slopes in mines according to claim 1, characterized in that: The planting trough (2) is set out protruding from the surface of the slope (1), and there is a gap between adjacent planting troughs (2) in the same row. All planting troughs (2) in adjacent rows are staggered.

3. The ecological restoration system for steep rocky slopes in mines according to claim 2, characterized in that: The planting assembly includes a planting board (16) and an auxiliary planting board (17). The planting board (16) is fixedly connected to the side wall of the planting trough (2) by rivets. The bottom surface of the planting board (16) is fixedly connected to the top surface of the auxiliary planting board (17). The top surface of the planting board (16) is provided with a plurality of planting holes (18) for supporting climbing plants. The auxiliary planting board (17) includes non-woven fabric and a culture medium. The culture medium is covered by the non-woven fabric and climbing plants are planted in the culture medium. The non-woven fabric is fixedly connected to the bottom surface of the planting board (16).

4. The ecological restoration system for steep rocky slopes in mines according to claim 3, characterized in that: The planting board (16) is made of bamboo or crushed and pressed wheat straw.

5. The ecological restoration system for steep rocky slopes in mines according to claim 4, characterized in that: The mesh chain includes several interconnected links (19), and an anchor rod (20) is fixedly connected between adjacent links (19). The links (19) are fixedly connected to the slope (1) through the anchor rod (20).

6. The ecological restoration system for steep rocky slopes in mines according to claim 5, characterized in that: The slope (1) has several grooves (21) on its surface, and all the grooves (21) are interconnected; the chain link (19) is located in the groove (21); the groove (21) is connected to the water collection pool (5).

7. The ecological restoration system for steep rocky slopes in mines according to claim 6, characterized in that: The drive rod (10) is a hollow plastic rod, and several fan blades (15) are fixedly connected to the top of the outer side of the drive rod (10).

8. A method for ecological restoration of steep rock slopes in mines, based on the ecological restoration system for steep rock slopes in mines as described in any one of claims 6-7, characterized in that: Includes the following steps: S1. Slope reduction and hazard mitigation: The steep section of the slope (1) is manually removed to reduce the slope to below 71°, and the planting trough (2) and the trench (21) are excavated on the surface of the slope (1); the water collection pool (5) connected to the trench (21) is constructed using the rubble from the steep section of the slope (1) that was removed; S2, Component installation: The planting component is fixedly connected to the planting trough (2) by the rivets; the net chain is placed in the trench (21) and the net chain and the slope (1) are fixedly connected by the anchor rod (20); S3, Surface spraying: The substrate layer and the vegetation layer are sprayed onto the surface of the slope (1) respectively; S4. Watering the green plants: Remotely activate the solenoid valve (14) to use the water pumping assembly to push the accumulated water to replenish the planting trough (2) or manually extract the accumulated water in the water pool (5) for irrigation.

9. A method for ecological restoration of steep rocky slopes in mines according to claim 8, characterized in that: In step S3, before the substrate layer and the vegetation layer are sprayed, a non-woven fabric layer needs to be laid on the surface of the slope (1).

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