Metallic mine dew mining side slope regreening vegetation structure

Abstract

The utility model belongs to the technical field of ecological restoration, and particularly discloses a metal mine exposed mining side slope regreening vegetation structure which is characterized in that a plurality of pear-shaped structures with small openings and large bellies are formed in a side slope, tailings are filled at the bottoms of the pear-shaped structures, planting holes are filled with vegetation base materials, and climbing plants carrying cultivation soil are transplanted in the planting holes; the stabilizer is buried in the planting hole, the fixing rod extends outwards, the water collecting plate is an arc-shaped plate transversely arranged on the slope surface and connected with the fixing rod, the geotechnical fiber net is laid on the top face of the metal mine exposed mining slope and connected with the fixing rod, the slope is provided with a planting base material in the geotechnical fiber net, and the planting base material contains herbaceous plant seeds. The planting holes are formed in the side slope, the water collecting plates are arranged, slope surface flowing water and slope body seepage water can be reserved to reduce water loss, the drought resistance is enhanced, the maintenance watering cost is reduced, climbing plant transplanting and seed sowing are combined to achieve quick greening of the side slope, and the planting efficiency is improved. The device has the characteristics of simple structure, drought resistance, water retention, high green recovery speed and good durability.

Description

Technical Field

[0001] The utility model belongs to the technical field of ecological restoration, and specifically relates to a metal mine open-pit mining slope greening vegetation structure with simple structure, drought resistance and water conservation, fast greening speed and good durability. Background Art

[0002] During the open-pit mining of metal mines, a large number of rock slopes will be generated due to excavation. These exposed rock slopes cause serious damage to the ecosystem. With the construction of ecological civilization, greening of mine rock slopes has become an important practical need.

[0003] The main method of traditional rock slope greening is to lay a soil substrate or spray a mud substrate on the slope surface to form a substrate layer for plant growth, thereby artificially assisting in creating the environmental foundation required for plant growth, and then sowing plant seeds on the substrate layer and watering and curing, and finally forming an ecological community to achieve greening. However, the greening effect of the existing rock slope greening method is due to the large single-level slope of the slope and the thickness of the substrate layer constructed on the slope surface is often thin, which makes it difficult for the substrate layer to store water and fertilizer. Therefore, the drought resistance of the substrate layer is poor, making the greening effect greatly affected by rainfall and watering and curing. In particular, if watering and curing are not performed in arid environments, it is difficult to achieve the ideal greening effect; and the existing substrate layer is mainly natural soil, which is mixed with plant fiber, compound fertilizer, organic fertilizer, adhesive and water retaining agent. Not only will the greening project cause a large consumption of natural soil resources, thus forming new environmental problems, but the greening of metal mine open-pit slopes often requires long-distance transportation of soil, which also increases the cost of greening. In addition, the existing rock slope greening is carried out by sowing seeds, which leads to a slow greening recovery speed and cannot form an ecological community and cover the slope surface as soon as possible. In addition, the existing rock slope greening substrate is mostly fixed on the slope surface with steel anchor rods or metal mesh. The greening substrate is prone to corrosion of the fixed structure in a long-term water and soil soaking environment, which is not conducive to the long-term stability of the substrate on the slope surface, and therefore the durability after greening is limited.

[0004] In the prior art, there is also a technical solution of putting the greening substrate mainly composed of tailings into the vegetation bag, and then fixing the vegetation bag on the slope with steel anchor rods or metal mesh. Although the greening substrate mainly composed of tailings can reduce the amount of soil used, reduce transportation costs, and slow down the loss of the greening substrate, the amount of greening substrate in the vegetation bag is limited, resulting in the substrate layer formed on the slope still having a weak ability to store water and fertilizer. In addition, the method of mixing seeds into the greening substrate in the vegetation bag also makes the regreening speed slow, and it is difficult to solve the problem of easy corrosion of the steel anchor rods or metal mesh used to fix the vegetation bag. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a metal mine open-pit mining slope regreening vegetation structure which has the advantages of simple structure, drought resistance, water conservation, fast regreening speed and good durability.

[0006] The utility model is realized in this way: it comprises a planting hole, a geotextile net, a stabilizer, a water collecting plate, and a planting substrate.

[0007] A plurality of planting holes perpendicular to the slope are arranged at intervals on the open-pit mining slope of the metal mine. The planting holes are in a "pear-shaped" structure with a small opening and a large belly. The bottom of the planting holes is filled with tailings and the rest is filled with a planting substrate. Climbing plants carrying cultivation soil are also transplanted into the planting holes.

[0008] The stabilizer is made of plastic or stainless steel and is buried in the planting hole. The fixing rod of the stabilizer extends out of the planting hole. The water collecting plate is an arc-shaped plate arranged horizontally on the slope surface of the metal mine open-pit mining slope. The bottom end of the long side of the water collecting plate is close to the slope surface of the metal mine open-pit mining slope and the short side is perpendicular to the slope surface. The lowest horizontal point of the water collecting plate is fixedly connected to the fixing rod. The geofiber mesh is arranged on the slope surface of the metal mine open-pit mining slope where the planting hole is located and the baffle of the geofiber mesh is perpendicular to the slope surface. The planting substrate is laid in the geofiber mesh. The geofiber mesh is laid on the planting hole of the metal mine open-pit mining slope and the top surface of the planting substrate. The geofiber mesh is fixedly connected to the fixing rods of each stabilizer, and the planting substrate contains herbaceous plant seeds.

[0009] Furthermore, the cultivation soil carried by the climbing plant is located in the center of the planting hole and compacted with a planting substrate, and the spacing between the planting holes on the open-pit mining slope of the metal mine is 1.5 to 2.5 m.

[0010] Furthermore, the hole diameter of the planting hole is 12 to 15 cm, the hole diameter is 35 to 45 cm, and the hole depth is 35 to 45 cm.

[0011] Furthermore, the stabilizer also includes an anti-pull-out rod and a connecting head. The connecting head is a five-way joint with a cross-shaped structural joint at the bottom and a fifth joint perpendicular to the cross-shaped structural joint. The anti-pull-out rod is fixedly arranged on the bottom cross-shaped structural joint of the connecting head, and the fixing rod is fixedly arranged on the fifth joint of the connecting head.

[0012] Furthermore, the maximum circumscribed circle diameter of the cross-shaped structural joint of the connecting head after connecting the anti-pull-out rod is smaller than the hole diameter of the planting hole and larger than the hole diameter of the planting hole. The maximum circumscribed circle diameter of the cross-shaped structural joint of the connecting head is smaller than the hole diameter of the planting hole.

[0013] Furthermore, the vegetation substrate includes vegetation substrate I and / or vegetation substrate II, the vegetation substrate I is laid on the bottom layer of the planting hole side of the metal mine open-pit slope and the vegetation substrate II is laid on the surface layer, the fixing rod extends out of the vegetation substrate II of the surface layer, the geotextile net is laid on the top surface of the vegetation substrate II and fixedly connected to the fixing rod, and the herbaceous plant seeds are arranged in the vegetation substrate II.

[0014] Furthermore, the thickness of the vegetation substrate I of the upper bottom layer of the metal mine open-pit mining slope is 8 to 15 cm, and the thickness of the vegetation substrate II of the surface layer is 2 to 5 cm. The herbaceous plant seeds in the vegetation substrate II of the surface layer of the metal mine open-pit mining slope are 20 to 30 g / m 2 sowing.

[0015] Furthermore, the geotextile mesh is formed by a plurality of vertically arranged corrugated plates whose wave crests are fitted and fixed together, and the corrugated plates serving as baffles of the geotextile mesh are provided with a plurality of through holes, and each adjacent corrugated plate of the geotextile mesh forms a plurality of diamond-shaped holes, and the length of the water-collecting plate is less than the length of the transverse diagonal of the diamond-shaped holes in the geotextile mesh.

[0016] Furthermore, the water collecting plate is a "C"-shaped rectangular plate with two sides tilted 3 to 5 cm relative to the middle respectively. The length of the water collecting plate is 50 to 70 cm and the height is 22 to 25 cm.

[0017] Furthermore, the geotextile mesh is fixed by binding with fixing rods by binding straps, the water collecting plate is provided with pairs of connection holes at intervals along the length direction, and the water collecting plate is fixed by binding with fixing rods and / or geotextile mesh by binding straps passing through the pairs of connection holes.

[0018] Beneficial effects of the utility model:

[0019] 1. The utility model opens a number of planting holes at intervals on the open-pit mining slope of the metal mine, fills the planting holes with tailings and the rest with vegetation substrate, and arranges a water collecting plate on the slope facing the planting hole, so that the slope flow water and slope seepage water of the open-pit mining slope of the metal mine can be collected and retained in the planting holes, thereby reducing water loss in the flood season, enhancing the drought resistance after regreening, and reducing the cost of maintenance and watering. In addition, the planting holes can also store fertilizers carried by the flowing water and seepage water, thereby enhancing the fertilizer retention capacity.

[0020] 2. The utility model transplants climbing plants carrying cultivation soil in planting holes, and contains herbaceous plant seeds in the vegetation substrate on the slope, thereby combining the transplanting of climbing plants with the germination and growth of herbaceous plant seeds. It can not only achieve rapid regreening of the slope through the transplanted climbing plants, but also increase the greening coverage rate of the slope through the herbaceous plant seeds in the vegetation substrate, and finally build a slope ecological community as soon as possible. Moreover, since the transplanted climbing plants carry cultivation soil, the survival rate after transplanting can be effectively guaranteed.

[0021] 3. The utility model is based on the actual situation of metal open-pit mining. The vegetation substrate for slope regreening uses tailings solid waste and mining stripping soil as the main raw materials. It can not only use local materials and realize the resource utilization of solid waste, but also reduce the occupation of natural soil and reduce the cost of regreening. Moreover, the vegetation substrate on the slope is covered and fixed with a geotextile net, and the tailings and vegetation substrate in the planting hole are protected by a "pear-shaped" structure planting hole, which can effectively slow down the loss of the vegetation substrate, thereby extending the maintenance time after regreening.

[0022] 4. The geotextile net for fixing the vegetation substrate on the slope, the stabilizer for fixing the geotextile net and the water collection plate of the utility model are all made of corrosion-resistant non-metallic materials, thus ensuring the durability of the water collection structure and the vegetation substrate fixing structure, thereby providing stable conditions for the long-term greening of the slope.

[0023] In summary, the utility model has the characteristics of simple structure, drought resistance and water retention, fast regreening speed and good durability. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of the utility model;

[0025] Figure 2 for Figure 1 A partial view of the

[0026] Figure 3 for Figure 1 A partial enlarged view of point B;

[0027] Figure 4 It is a schematic diagram of the three-dimensional structure of the stabilizer of the utility model;

[0028] Figure 5 This is a schematic diagram of the water collecting plate binding structure of the utility model;

[0029] Figure 6 This is a schematic diagram of the local stretching state of the geotextile net of the utility model;

[0030] Figure 7 This is a schematic diagram of rainwater collection and storage of the utility model;

[0031] In the figure: 1-metal mine open-pit slope, 2-planting holes, 3-geotextile mesh, 301-baffle, 4-stabilizer, 401-fixing rod, 402-anti-pullout rod, 403-connector, 5-water collection plate, 6-vegetation substrate, 601-vegetation substrate I, 602-vegetation substrate II, 7-tailings, 8-cultivation soil, 9-climbing plant, 10-binding belt, 11-herbaceous plant, 12-liquid level, 13-precipitation. DETAILED DESCRIPTION

[0032] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but the present invention is not limited in any way. Any changes or improvements made based on the teachings of the present invention belong to the protection scope of the present invention.

[0033] like Figures 1 to 7 As shown, the utility model includes a planting hole 2, a geotextile net 3, a stabilizer 4, a water collection plate 5, and a planting substrate 6.

[0034] A plurality of planting holes 2 perpendicular to the slope are arranged at intervals on the metal mine open-pit mining slope 1. The planting holes 2 are in a "pear-shaped" structure with a small opening and a large belly. The bottom of the planting holes 2 is filled with tailings 7 and the rest is filled with a planting substrate 6. Climbing plants 9 carrying cultivation soil 8 are also transplanted into the planting holes 2.

[0035] The stabilizer 4 is made of plastic or stainless steel and is buried in the planting hole 2. The fixing rod 401 of the stabilizer 4 extends out of the planting hole 2. The water collecting plate 5 is an arc-shaped plate arranged horizontally on the slope surface of the metal mine open-pit slope 1. The bottom end of the long side of the water collecting plate 5 is close to the slope surface of the metal mine open-pit slope 1 and the short side is perpendicular to the slope surface. The lowest horizontal point of the water collecting plate 5 is fixedly connected to the fixing rod 401. The geotextile mesh 3 is arranged on the slope surface of the metal mine open-pit slope 1 where the planting hole 2 is located and the baffle 301 of the geotextile mesh 3 is perpendicular to the slope surface. The planting substrate 6 is laid in the geotextile mesh 3. The geotextile mesh 3 is laid on the planting hole 2 of the metal mine open-pit slope 1 and the top surface of the planting substrate 6. The geotextile mesh 3 is fixedly connected to the fixing rods 401 of each stabilizer 4, and the planting substrate 6 contains herbaceous plant seeds.

[0036] The cultivation soil 8 carried by the climbing plant 9 is located in the center of the planting hole 2 and is compacted with the planting substrate 6. The spacing between the planting holes 2 on the open-pit mining slope 1 of the metal mine is 1.5-2.5 m.

[0037] The planting hole 2 has a hole opening diameter of 12 to 15 cm, a hole belly diameter of 35 to 45 cm, and a hole depth of 35 to 45 cm.

[0038] The stabilizer 4 also includes an anti-pull-out rod 402 and a connecting head 403. The connecting head 403 is a five-way joint with a cross-shaped structural joint at the bottom and a fifth joint perpendicular to the cross-shaped structural joint. The anti-pull-out rod 402 is fixedly arranged on the bottom cross-shaped structural joint of the connecting head 403, and the fixing rod 401 is fixedly arranged on the fifth joint of the connecting head 403.

[0039] The maximum circumscribed circle diameter of the cross-shaped structural joint of the connecting head 403 after connecting the anti-pull-out rod 402 is smaller than the hole diameter of the planting hole 2 and larger than the hole diameter of the planting hole 2. The maximum circumscribed circle diameter of the cross-shaped structural joint of the connecting head 403 is smaller than the hole diameter of the planting hole 2.

[0040] The vegetation substrate 6 includes a vegetation substrate I 601 and / or a vegetation substrate II 602. The vegetation substrate I 601 is laid on the bottom layer of the metal mine open-pit slope 1 on the side of the planting hole 2 and the vegetation substrate II 602 is laid on the surface layer. The fixing rod 401 extends out of the surface layer of the vegetation substrate II 602. The geotextile net 3 is laid on the top surface of the vegetation substrate II 602 and is fixedly connected to the fixing rod 401. The herbaceous plant seeds are arranged in the vegetation substrate II 602.

[0041] The thickness of the vegetation substrate I601 on the bottom layer of the metal mine open-pit mining slope 1 is 8 to 15 cm, and the thickness of the vegetation substrate II602 on the surface layer is 2 to 5 cm. The herbaceous plant seeds in the vegetation substrate II602 on the surface layer of the metal mine open-pit mining slope 1 are 20 to 30 g / m 2 sowing.

[0042] The herbaceous plant seeds in the vegetation substrate II 602 are one of Setaria viridis, tall fescue, and alfalfa, or any mixture thereof.

[0043] The vegetation substrate 6 filled in the planting hole 2 is the vegetation substrate I 601, and the climbing plant 9 is honeysuckle, creeper, ivy or bougainvillea.

[0044] The vegetation substrate I601 is mainly made of tailings solid waste stored in large quantities in mines, and is mixed with plant fibers, water retaining agents, and organic fertilizers to improve the metal tailings; the vegetation substrate II602 is mainly made of mining stripping soil, and is mixed with carbendazim, organic fertilizers, and herbaceous plant seeds.

[0045] The geotextile mesh 3 is formed by a plurality of vertically arranged corrugated plates whose wave crests are fitted and fixed together. The corrugated plates serving as baffles 301 of the geotextile mesh 3 are provided with a plurality of through holes. Each adjacent corrugated plate of the geotextile mesh 3 forms a plurality of diamond-shaped holes. The length of the water-collecting plate 5 is less than the length of the horizontal diagonal of the diamond-shaped holes in the geotextile mesh 3.

[0046] The baffle 301 of the geotextile mesh 3 is a flexible plastic sheet. The geotextile mesh 3 can be stretched along the length direction of the baffle 301 to make the baffles 301 fit together, thereby folding the geotextile mesh 3; the geotextile mesh 3 can be stretched perpendicular to the length direction of the baffle 301 to separate the baffles 301 from each other to form diamond-shaped holes, thereby unfolding the geotextile mesh 3.

[0047] The water collecting plate 5 is a C-shaped rectangular plate with two sides tilted 3 to 5 cm relative to the middle. The length of the water collecting plate 5 is 50 to 70 cm and the height is 22 to 25 cm.

[0048] The water collecting plate 5 is a rectangular plate made of PVC material and has a wall thickness of 0.1 to 0.3 cm.

[0049] The geotextile mesh 3 is fixed to the fixing rod 401 by means of a binding belt 10. The water collecting plate 5 is provided with pairs of connecting holes at intervals along the length direction. The water collecting plate 5 is fixed to the fixing rod 401 and / or the geotextile mesh 3 by means of the binding belt 10 passing through the pairs of connecting holes.

[0050] The binding belt 10 is a commercially available polymer material binding belt. Example

[0051] like Figures 1 to 7 As shown in the figure, a rock slope reforestation of an open-pit metal mine in Yunnan is taken as an example. The single-level slope of the open-pit metal mine is 60-65°, and the rock of the slope is hard and the slope surface is smooth. The rock slope is reforested and the environment is restored. The steps are as follows:

[0052] Step 1: First remove the unstable rocks on the open-pit slope 1 of the metal mine, use a handheld lightweight electric drill to dig out planting holes 2, and make the planting holes 2 form a "pear-shaped" structure with a hole diameter of 12 to 15 cm, a hole belly diameter of 35 to 45 cm and a hole depth of 35 to 45 cm, and the spacing between the planting holes 2 on the slope is 2 to 2.5 m.

[0053] Step 2: The stabilizer 4 is made of PVC material (PVC has the characteristics of good chemical stability, strong acid and alkali resistance, high strength, high rigidity and high hardness). The stabilizer 4 is composed of a fixed rod 401 of about 50 cm in length, a DN15 connector (i.e. connector 403) and four anti-pullout rods 402 of 18 to 23 cm in length, which are connected and assembled by internal threads in the planting hole 2. During the implementation process, the fixed rod 401 and the anti-pullout rod 402 are respectively made of PVC rods with a diameter of 1.5 cm, and one end of the PVC rod is mechanically formed with external threads, and the connection hole of the DN15 connector is mechanically formed with internal threads.

[0054] Step three: Fill the planting hole 2 with the vegetation substrate Ⅰ601 and transplant the climbing plant 9. First, use the tailings 7 to lay the bottom of the planting hole 2 to form a thickness of 8 to 12 cm; then use the vegetation substrate Ⅰ601 to fill the planting hole 2. The vegetation substrate Ⅰ601 mainly uses metal tailings solid waste stored in large quantities in mines, and then adds plant fiber, water retaining agent, and organic fertilizer to improve the metal tailings; then transplant the honeysuckle plant (i.e., the climbing plant 9) with the cultivation soil 8 and irrigate it with rooting water. When transplanting, care should be taken to ensure that the root of the honeysuckle plant is located in the center of the planting hole 2, thereby ensuring the survival rate of the transplanted honeysuckle plant.

[0055] Step 4: Install the water collecting plate 5. The water collecting plate 5 is made of a PVC plate with a thickness of 0.2 cm and a length of 60-70 cm and a width of 22-25 cm, and the two sides are tilted 3-5 cm relative to the middle. The water collecting plate 5 is horizontally arranged on the slope surface of the metal mine open-pit mining slope 1, and the bottom end of the long side of the water collecting plate 5 is close to the slope surface of the metal mine open-pit mining slope 1, and the short side is perpendicular to the slope surface, and the middle part of the horizontally arranged water collecting plate 5 is the lowest and is located on the planting hole 2. It is tied to the fixed rod 401 with a commercially available polymer material tie band 10, and each water collecting plate 5 is tied with two tie bands 10 at intervals.

[0056] Step 5: laying the geotextile mesh 3 on the slope. The geotextile mesh 3 is stretched and laid on the slope of the metal mine open-pit mining slope 1, and the baffle 301 of the geotextile mesh 3 is perpendicular to the slope, and the water collecting plate 5 is placed in the diamond-shaped hole of the geotextile mesh 3, and the geotextile mesh 3 is tied and fixed to each fixing rod 401 with a binding belt 10. The geotextile mesh 3 is used to fix the vegetation substrate I 601 and the vegetation substrate II 602 laid on the slope.

[0057] Step 6: Lay the vegetation substrate I 601 and the vegetation substrate II 602. First, lay the vegetation substrate I 601 on the bottom layer of the geotextile net 3 on the slope 1 of the metal mine open-pit mining, forming a vegetation substrate I layer with a thickness of 8 to 15 cm; then lay the vegetation substrate II 602 on the vegetation substrate I layer in the geotextile net 3, forming a vegetation substrate II layer with a thickness of 2 to 5 cm; wherein the vegetation substrate II 602 is mainly composed of mining stripping soil, mixed with carbendazim, organic fertilizer, and seeds of herbaceous plants 11, and the seeds of herbaceous plants 11 are a mixture of foxtail grass, tall fescue and alfalfa, at a slope surface of 20 to 30 g / m 2 Sowing seeds and watering make the herbs 11 germinate and grow.

[0058] After one year of planting, the creepers 9 and herbaceous plants 11 on the slope of the metal mine open-pit mining slope 1 are growing well. Among them, the height of Setaria viridis is 30-40cm, the height of tall fescue is 25-35cm, the height of alfalfa is 20-30cm, and the length of honeysuckle creepers is 100-150cm. The slope forms an ecological group combining creepers 9 and herbaceous plants 11, and the vegetation coverage of the slope reaches more than 95%, achieving the purpose of ecological greening of the slope. Based on the actual situation of the metal mine open-pit mining slope 1, the vegetation substrate 6 of the slope greening vegetation structure uses solid wastes such as tailings and mining stripping soil that exist in large quantities in metal mines as the main raw materials. The raw materials are abundant and can realize the resource utilization of mine solid wastes. The slope greening vegetation structure also has the characteristics of drought resistance and water conservation, fast slope greening speed, and good structural durability.

[0059] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A metal mine open-pit mining slope greening plantation structure, characterized in that It includes a planting hole (2), a geotextile net (3), a stabilizer (4), a water collection plate (5), and a planting substrate (6). A plurality of planting holes (2) perpendicular to the slope surface are arranged at intervals on the open-pit mining slope (1) of the metal mine. The planting holes (2) are in a "pear-shaped" structure with a small opening and a large belly. The bottom of the planting holes (2) is filled with tailings (7) and the rest is filled with a planting substrate (6). Climbing plants (9) carrying cultivation soil (8) are also transplanted into the planting holes (2); The stabilizer (4) is made of plastic or stainless steel and is buried in the planting hole (2). The fixing rod (401) of the stabilizer (4) extends out of the planting hole (2). The water collecting plate (5) is an arc-shaped plate arranged transversely on the slope surface of the metal mine open-pit mining slope (1). The bottom end of the long side of the water collecting plate (5) is in close contact with the slope surface of the metal mine open-pit mining slope (1) and the short side is perpendicular to the slope surface. The lowest transverse part of the water collecting plate (5) is fixedly connected to the fixing rod (401). The geotextile mesh (3) The baffle (301) of the geotextile net (3) is arranged on the slope surface of the metal mine open-pit mining slope (1) where the planting hole (2) is located, and is perpendicular to the slope surface; the vegetation substrate (6) is laid in the geotextile net (3); the geotextile net (3) is laid on the planting hole (2) of the metal mine open-pit mining slope (1) and the top surface of the vegetation substrate (6); the geotextile net (3) is fixedly connected to the fixing rods (401) of each stabilizer (4); and the vegetation substrate (6) contains herbaceous plant seeds.

2. The metal mine open-pit mining slope regreening plantation structure according to claim 1 is characterized in that The cultivation soil (8) carried by the climbing plant (9) is located in the center of the planting hole (2) and is compacted with the planting substrate (6), and the spacing between the planting holes (2) on the metal mine open-pit mining slope (1) is 1.5 to 2.5 m.

3. The metal mine open-pit mining slope regreening plantation structure according to claim 2 is characterized in that The planting hole (2) has an opening diameter of 12 to 15 cm, a hole belly diameter of 35 to 45 cm and a hole depth of 35 to 45 cm.

4. The metal mine open-pit mining slope regreening plantation structure according to claim 1 is characterized in that The stabilizer (4) further comprises an anti-pullout rod (402) and a connecting head (403); the connecting head (403) is a five-way joint having a cross-shaped structural joint at the bottom and provided with a fifth joint perpendicular to the cross-shaped structural joint; the anti-pullout rod (402) is fixedly arranged on the cross-shaped structural joint at the bottom of the connecting head (403); and the fixing rod (401) is fixedly arranged on the fifth joint of the connecting head (403).

5. The metal mine open-pit mining slope regreening plantation structure according to claim 4 is characterized in that The maximum circumscribed circle diameter of the cross-shaped structural joint of the connector (403) after connecting the anti-pulling rod (402) is smaller than the hole diameter of the planting hole (2) and larger than the hole diameter of the planting hole (2); the maximum circumscribed circle diameter of the cross-shaped structural joint of the connector (403) is smaller than the hole diameter of the planting hole (2).

6. The metal mine open-pit mining slope regreening plantation structure according to claim 1, characterized in that The vegetation substrate (6) comprises a vegetation substrate I (601) and / or a vegetation substrate II (602); the vegetation substrate I (601) is laid on the bottom layer of the metal mine open-pit slope (1) on the side of the planting hole (2) and the vegetation substrate II (602) is laid on the surface layer; the fixing rod (401) extends out of the vegetation substrate II (602) on the surface layer; the geotextile net (3) is laid on the top surface of the vegetation substrate II (602) and is fixedly connected to the fixing rod (401); and the herbaceous plant seeds are arranged in the vegetation substrate II (602).

7. The metal mine open-pit mining slope regreening plantation structure according to claim 6 is characterized in that The thickness of the vegetation substrate I (601) on the bottom layer of the metal mine open-pit mining slope (1) is 8 to 15 cm, and the thickness of the vegetation substrate II (602) on the surface layer is 2 to 5 cm. The herbaceous plant seeds in the vegetation substrate II (602) on the surface layer of the metal mine open-pit mining slope (1) are 20 to 30 g / m 2 sowing.

8. The metal mine open-pit mining slope regreening structure according to any one of claims 1 to 7, characterized in that The geotextile net (3) is formed by a plurality of vertically arranged corrugated plates whose wave crests are fitted and fixed together; the corrugated plates are used as baffles (301) of the geotextile net (3) and are provided with a plurality of through holes; each adjacent corrugated plate of the geotextile net (3) forms a plurality of diamond-shaped holes; and the length of the water collection plate (5) is less than the length of the transverse diagonal of the diamond-shaped holes in the geotextile net (3).

9. The metal mine open-pit mining slope regreening plantation structure according to claim 8, characterized in that The water collecting plate (5) is a "C"-shaped rectangular plate with two sides tilted 3 to 5 cm relative to the middle. The water collecting plate (5) is 50 to 70 cm long and 22 to 25 cm high.

10. The metal mine open-pit mining slope regreening structure according to claim 8, characterized in that The geotextile mesh (3) is fixed by binding with a fixing rod (401) using a binding belt (10); the water collecting plate (5) is provided with pairs of connection holes at intervals along the length direction; the water collecting plate (5) is fixed by binding with a fixing rod (401) and / or the geotextile mesh (3) using the binding belt (10) passing through the pairs of connection holes.

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