Slope protection structure for mine geological environment governance

Abstract

The invention discloses a slope protection structure for mine geological environment governance, and belongs to the technical field of mine geological environment governance, the slope protection structure comprises a slope body, grooves located in the surface of the slope body, anchor rods and a vegetation net, the anchor rods are implanted into the slope body at intervals, the vegetation net is laid on the surfaces of the grooves and preliminarily positioned through the anchor rods, and the vegetation net is in a movable state in the initial state. In order to solve the problems that a traditional vegetation net cannot adapt to an irregular slope of a mine and water and soil loss is caused due to the fact that gaps are easily reserved, the vegetation net is attached in a self-adaptive mode through an outer metal protective net pressure applying-attaching mechanism driving-elastic stainless steel rod deformation linkage mechanism, an outer metal net applies pressure to push a push rod, and the vegetation net is attached to the slope. The elastic stainless steel rods are pertinently deformed according to the concave and convex shapes of the slope surface, the vegetation net is driven to fill gaps and fit the slope, the releasing mechanism releases the steel wire rope, adjustment allowance is provided for the vegetation net, wrinkles and suspension are avoided, stable attachment of soil and a spray-seeding matrix is ensured, and the survival rate of vegetation is greatly increased.

Description

TECHNICAL FIELD

[0001] The present application relates to a slope protection structure, in particular to a slope protection structure for mine geological environment governance, belonging to the technical field of mine geological environment governance. BACKGROUND

[0002] The exposed slope formed in the process of mining is generally uneven, with broken rock and steep slope (the slope of some high and steep slopes can be more than 60°), which is prone to cause ecological problems such as soil erosion, landslides and vegetation degradation. As a key link of mine ecological restoration, the core demand of slope protection is to build a stable protection system to achieve the dual goals of soil and water conservation and vegetation restoration.

[0003] At present, the most widely used slope protection technology is vegetation net protection method, especially three-dimensional vegetation net, which has become the mainstream choice for mine slope greening due to its low cost, convenient construction and good ecological compatibility. Traditional three-dimensional vegetation net is made of thermoplastic resin by weaving or non-woven process, and its design idea focuses on trapping soil and grass seeds through the structure of the net, relying on the combined effect of plant roots and net to enhance the stability of the slope. However, in the special slope environment of mine, this kind of traditional vegetation net gradually exposes significant technical defects: On the one hand, the traditional vegetation net material has strong rigidity and poor flexibility, which is difficult to adapt to the complex surface morphology of mine slope formed by rock protrusions and fracture development. During the laying process, a large number of gaps are easily generated between the net and the slope surface, which leads to ineffective adhesion of soil and spray seeding matrix, and the soil is easily lost under the erosion of wind and rain, seriously affecting the survival rate of vegetation. On the other hand, although the existing fixing method (such as soil spike and U-shaped ground nail) can realize local positioning, it cannot solve the overall fitting problem of the net and irregular slope surface. The net on high and steep slope is easy to slip or tear due to its own weight and external force, further increasing the risk of protection failure, and even requiring secondary repair, which greatly increases the governance cost.

[0004] The deficiency of traditional vegetation net in fitting effect has become a key bottleneck restricting the improvement of mine slope governance efficiency. Therefore, a slope protection structure for mine geological environment governance is designed to optimize the above problems. SUMMARY

[0005] The main purpose of the present application is to provide a slope protection structure for mine geological environment management, aiming at the problem that the traditional vegetation net cannot adapt to the irregular slope surface of the mine and is easy to leave gaps to cause water and soil loss, the present application realizes the linkage mechanism of "external metal protection net pressing - fitting mechanism driving - elastic stainless steel rod deformation", so that the vegetation net is self-adaptive fitting, the external metal net presses and drives the push rod, the elastic stainless steel rod deforms according to the concave and convex form of the slope surface, drives the vegetation net to fill the gap and stick to the slope, the release mechanism releases the steel wire rope, provides adjustment allowance for the vegetation net, avoids wrinkles and suspension, ensures the stable adhesion of soil and spray seeding matrix, greatly improves the survival rate of vegetation, breaks through the traditional "rigid fixation in advance" mode, adopts the logic of "movable laying first and self-adaptive fitting later", the vegetation net is only initially positioned, avoids rigid pulling, the external metal net not only provides pressure for the fitting mechanism, but also resists external forces such as rockfall and strong wind, protects the internal vegetation net, the elasticity of the elastic stainless steel rod can maintain the fitting force for a long time, responds to the slight settlement deformation of the slope body, reduces the tearing of the net body, improves the structural stability, reduces the secondary repair demand and long-term maintenance cost, the external metal protection net has the dual functions of "driving fitting" and "external protection", which not only provides a stable pressure source for the fitting mechanism, but also provides a protective barrier for the internal vegetation net, soil and vegetation, the elastic stainless steel rod of the fitting mechanism and the steel wire rope of the release mechanism form an adaptive combination of "rigid deformation + flexible adjustment", the elastic stainless steel rod ensures the tightness of the vegetation net fitting, the steel wire rope release ensures the flexibility of the vegetation net adjustment, the cooperation of the two can adapt to various forms of mine slope from slight undulation to significant protrusion, solves the contradiction of "tight fitting or unable to adapt" in the traditional mode, and the sliding block and reset spring of the fitting mechanism can buffer the slope stress, avoid structure damage, prolong the service life of the slope protection, and adapt to complex mine geological environment.

[0006] The object of the present application can be achieved by adopting the following technical scheme: A slope protection structure for mine geological environment management, comprising a slope body and a groove on the surface of the slope body; An anchor rod, the anchor rod is spaced apart and implanted into the slope body; A vegetation net, the vegetation net is laid on the surface of the groove and is initially positioned by the anchor rod, and the vegetation net is in a movable state in the initial state; A fitting mechanism, the fitting mechanism is arranged outside the vegetation net and is spaced apart and distributed along the slope body; A release mechanism, the release mechanism is installed on the surface of the slope body and is connected with the corners of the vegetation net; An external metal protection net, the external metal protection net is covered outside the fitting mechanism and is fixed on the slope body by the anchor rod, the external metal protection net presses the surface of the vegetation net by the fitting mechanism, the vegetation net is tightly fitted inside the groove, and the release mechanism provides adjustment allowance for the vegetation net to adapt to the slope surface.

[0007] Preferably, the fitting mechanism comprises elastic stainless steel rods, sliding blocks, fitting blocks, strip-shaped grooves, push rods and compression springs, the elastic stainless steel rods are cross-shaped and fixed at the corners of the vegetation net, the end of each elastic stainless steel rod is provided with a sliding block, fitting blocks are arranged in parallel at the middle of the outer side of the vegetation net, strip-shaped grooves are arranged in a ring array at the bottom of the fitting blocks, a push rod is hingedly installed in each strip-shaped groove, the bottom end of each push rod is hingedly connected with a sliding block, and a compression spring is arranged between the inner end of each strip-shaped groove and the push rod.

[0008] Preferably, the fitting mechanism further comprises threaded holes, sleeves, support rods and return springs, the sleeves are threadedly installed at the middle of the bottom of the fitting blocks, the bottom of the fitting block is provided with threaded holes matched with the sleeves, the inside of each sleeve is slidably provided with a support rod, and a return spring is arranged between the inner top of the sleeve and the support rod.

[0009] Preferably, the bottom end of the sleeve is provided with a first bolt, the bottom end of the support rod is fixed with a pressing block, and the bottom of the pressing block is provided with a pressing groove matched with the elastic stainless steel rod.

[0010] Preferably, the release mechanism comprises a mounting plate, a wire releasing groove, a rotating rod, a clock spring and a steel wire rope, the mounting plate is attached to the surface of the slope body, the end of the anchor rod passes through the middle of the mounting plate and fixes the mounting plate, the inside of the mounting plate is provided with a wire releasing groove, the inside of the wire releasing groove is vertically rotatably provided with a rotating rod, a clock spring is arranged between the top end of the rotating rod and the inside of the wire releasing groove, the bottom end of the rotating rod is wound with a steel wire rope, and the end of the steel wire rope slidably extends to the outside of the mounting plate and is connected with the edge of the vegetation net.

[0011] Preferably, the top of the mounting plate is provided with a pressing plate in parallel, the outer metal protective net is located between the mounting plate and the pressing plate, a second bolt is arranged between the pressing plate and the mounting plate, and the second bolt passes through the hole of the outer metal protective net.

[0012] Preferably, the vegetation net is a modified polyethylene three-dimensional vegetation net, the mesh aperture is 10-15 mm, the thickness is 5-8 mm, the inside of the vegetation net is interwoven to form a honeycomb-shaped soil cavity, and is used for enhancing the adhesion stability of the soil, the spray-broadcasting substrate and the grass seeds.

[0013] Preferably, the anchor rod is a threaded steel anchor rod, the diameter is 20-25 mm, the anchor rods are distributed in a plum blossom array along the gradient direction of the slope body, the horizontal distance between two adjacent anchor rods is 1.5-2 m, the vertical distance is 1-1.2 m, the depth of the anchor rod implanted into the slope body is not less than 0.8 m, and a barb structure is arranged at the end of the implanted end of the anchor rod to improve the anchoring strength.

[0014] Preferably, the elastic stainless steel rod is made of 304 stainless steel material, the diameter is 8-12 mm, the bending deformation angle range is 0-45°, and the deformation can be restored to the initial state, which is used for long-term maintenance of the fitting pressure on the vegetation net.

[0015] Preferably: the outer metal protection net is woven by hot-dip galvanized steel wire, the diameter of the steel wire is 3-5mm, the mesh hole is square structure and the side length is 50-80mm, and the tensile strength of the net body is not less than 500MPa.

[0016] The beneficial effects of the present application are: The present application provides a slope protection structure for mine geological environment management, aiming at the problem that the traditional vegetation net cannot adapt to the irregular slope surface of the mine and is easy to leave gaps to cause water and soil loss, the present application realizes the self-adaptive fitting of the vegetation net through the linkage mechanism of "outer metal protection net pressing-hinge mechanism driving-elastic stainless steel rod deformation", the outer metal net presses and drives the push rod, the elastic stainless steel rod deforms according to the concave and convex form of the slope surface, the vegetation net is filled and attached to the slope, the release mechanism releases the steel wire rope, provides adjustment allowance for the vegetation net, avoids wrinkles and suspension, ensures the stable adhesion of soil and spray seeding matrix, and greatly improves the survival rate of vegetation. Breakthrough the traditional "early rigid fixation" mode, adopt the logic of "first movable laying, then self-adaptive fitting", the vegetation net is only initially positioned, avoiding rigid pulling, the outer metal net not only provides pressure for the fitting mechanism, but also resists external forces such as rockfall and strong wind, protecting the internal vegetation net, the elasticity of the elastic stainless steel rod can maintain the fitting force for a long time, coping with slight settlement deformation of the slope body, reducing the tearing of the net body, improving the structural stability, reducing the secondary repair demand and long-term maintenance cost. The outer metal protection net has the dual functions of "driving fitting" and "external protection", which not only provides a stable pressure source for the fitting mechanism, but also forms a protective barrier for the internal vegetation net, soil and vegetation, the elastic stainless steel rod of the fitting mechanism and the steel wire rope of the release mechanism form an adaptive combination of "rigid deformation + flexible adjustment", the elastic stainless steel rod ensures the tightness of the vegetation net fitting, the steel wire rope release ensures the flexibility of the vegetation net adjustment, the cooperation of the two can adapt to various forms of mine slope from slight undulation to significant protrusion, solving the contradiction of "tight fitting or unable to adapt" in the traditional mode, the slider and reset spring of the fitting mechanism can buffer the slope stress, avoid structure damage, prolong the service life of the slope protection, and adapt to complex mine geological environment. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a slope protection structure product drawing of a preferred embodiment of the present application, a slope protection structure for mine geological environment management; Figure 2 It is a vegetation net construction state drawing of a preferred embodiment of the present application, a slope protection structure for mine geological environment management; Figure 3 It is a slope body surface drawing of a preferred embodiment of the present application, a slope protection structure for mine geological environment management; Figure 4 It is a vegetation net surface structure drawing of a preferred embodiment of the present application, a slope protection structure for mine geological environment management; Figure 5 It is a preferred embodiment of the fitting mechanism of the slope protection structure for mine geological environment management according to the present application; Figure 6 It is a sleeve external structure diagram of a preferred embodiment of the slope protection structure for mine geological environment management according to the present application; Figure 7 It is a release mechanism diagram of a preferred embodiment of the slope protection structure for mine geological environment management according to the present application.

[0018] In the figure: 1, slope body; 101, groove; 2, anchor rod; 3, vegetation net; 4, fitting mechanism; 401, elastic stainless steel rod; 402, sliding block; 403, fitting block; 404, strip-shaped groove; 405, push rod; 406, extrusion spring; 407, threaded hole; 408, sleeve; 409, support rod; 410, reset spring; 411, first bolt; 412, pressing block; 413, pressing groove; 5, release mechanism; 501, mounting plate; 502, wire laying groove; 503, rotating rod; 504, clock spring; 505, steel wire rope; 506, pressing plate; 507, second bolt; 6, external metal protective net. DETAILED DESCRIPTION

[0019] In order to make the person skilled in the art more clear and clear the technical solutions of the present application, the present application will be further described in detail below in combination with examples and drawings, but the embodiments of the present application are not limited thereto. EMBODIMENT

[0020] As Figures 1-7 shown, the present embodiment provides a slope protection structure for mine geological environment management, which comprises a slope body 1 and a groove 101 on the surface of the slope body 1; An anchor rod 2 is implanted in the slope body 1 at intervals; A vegetation net 3 is laid on the surface of the groove 101 and is preliminarily positioned by the anchor rod 2, and the vegetation net 3 is in a movable state in the initial state; A fitting mechanism 4 is arranged on the outside of the vegetation net 3 and is distributed at intervals along the slope body 1; A release mechanism 5 is installed on the surface of the slope body 1 and is connected with the corners of the vegetation net 3; An external metal protective net 6 is covered on the outside of the fitting mechanism 4 and is fixed on the slope body 1 by the anchor rod 2, the external metal protective net 6 presses the surface of the vegetation net 3 through the fitting mechanism 4, the vegetation net 3 is closely fitted to the inside of the groove 101, and the release mechanism 5 provides an adjustment allowance for the vegetation net 3 to adapt to the slope surface.

[0021] Overall working principle: The surface of the slope body 1 needs to be pretreated before construction, the loose rock blocks are cleaned, and the naturally formed grooves 101 are retained, then the anchor rods 2 are planted in the slope body 1 according to the design requirements, the anchor rods 2 are made of threaded steel, and are distributed in a plum blossom shape along the slope direction of the slope body 1, the planting depth is not less than 0.8 m, and the barb structure at the end of the planting end can enhance the engagement strength with the internal rock and soil of the slope body 1, and provide a stable anchoring foundation for the subsequent structure; Then the vegetation net 3 is laid on the groove 101 area of the slope body 1 surface, the vegetation net 3 is preliminarily positioned by the anchor rod 2, and only large displacement is limited, the vegetation net 3 still maintains a movable state in the initial state, avoiding the damage of net body caused by traditional rigid fixation, then the fitting mechanism 4 is installed outside the vegetation net 3 along the slope direction of the slope body 1, the release mechanism 5 is installed on the surface of the slope body 1 corresponding to the corner of the vegetation net 3, and the release mechanism 5 is connected with the corner of the vegetation net 3, providing adjustment space for the vegetation net 3 to adapt to the slope surface in the subsequent process; Finally, the outer metal protection net 6 is covered outside the fitting mechanism 4, and the outer metal protection net 6 is fixed on the slope body 1 by the anchor rod 2, the outer metal protection net 6 is made of hot-dipped galvanized steel wire, and the tensile strength is not less than 500 MPa, the fitting mechanism 4 will generate continuous pressure on the fitting mechanism 4 in the fixing process, the fitting mechanism 4 drives the vegetation net 3 to fit into the groove 101 of the slope body 1 surface under the action of pressure, and the release mechanism 5 will dynamically release or recover the connected steel wire rope 505 according to the fitting demand of the vegetation net 3, providing adjustment allowance for the vegetation net 3 to adapt to the concave-convex shape of the slope body 1, avoiding the wrinkles or suspension of the vegetation net 3, finally realizing the close fitting of the vegetation net 3 and the surface of the slope body 1 (including the groove 101), ensuring that the soil, spray-broadcasting substrate and grass seeds can be stably attached to the honeycomb soil-containing cavities of the vegetation net 3, reducing the loss caused by wind and rain erosion, and improving the vegetation survival rate. Embodiment

[0022] The scheme in embodiment 1 will be further introduced in combination with a specific working mode, and details are described below: In this embodiment, the fitting mechanism 4 includes elastic stainless steel rods 401, sliding blocks 402, fitting blocks 403, strip grooves 404, push rods 405 and extrusion springs 406, the elastic stainless steel rods 401 are in a cross shape and are fixed at the corners of the vegetation net 3, the end portions of the elastic stainless steel rods 401 are slidably provided with the sliding blocks 402, the outer middle position of the vegetation net 3 is provided with the fitting blocks 403 in parallel, the bottoms of the fitting blocks 403 are annularly arrayed with the strip grooves 404, the inside of each strip groove 404 is hingedly installed with the push rod 405, the bottom end of each push rod 405 is hingedly connected with the sliding block 402, and the extrusion spring 406 is arranged between the inner end portion of the strip groove 404 and the push rod 405.

[0023] Local working principle: when the outer metal protection net 6 is covered, it generates downward pressure on the fitting block 403, the fitting block 403 is pressed to drive the push rod 405 to rotate around the hinge point in the strip-shaped groove 404, the push rod 405 drives the sliding block 402 to slide along the elastic stainless steel rod 401 during rotation, if there is a protrusion on the surface of the slope 1, the sliding of the sliding block 402 causes the elastic stainless steel rod 401 to bend and deform upward at the corresponding protrusion position, driving the vegetation net 3 to fit to the protrusion, if there is a depression (such as a groove 101) on the surface of the slope 1, the sliding of the sliding block 402 causes the elastic stainless steel rod 401 to bend and deform downward at the corresponding depression position, driving the vegetation net 3 to embed into the depression, realizing the targeted fitting of the vegetation net 3 to the irregular surface of the slope 1.

[0024] In this embodiment, the fitting mechanism 4 further comprises a threaded hole 407, a sleeve 408, a support rod 409, and a return spring 410. The sleeve 408 is threadedly installed at the middle position of the bottom of the fitting block 403, the bottom of the fitting block 403 is provided with a threaded hole 407 matched with the sleeve 408, the support rod 409 is slidably arranged in the inside of the sleeve 408, and the return spring 410 is arranged between the support rod 409 and the inner top of the sleeve 408.

[0025] Local working principle: when the surface of the slope 1 has large undulations, the support rod 409 can slide up and down along the inner wall of the sleeve 408, and the return spring 410 expands and contracts accordingly, adjusting the distance between the fitting block 403 and the vegetation net 3, ensuring that the push rod 405 can always apply effective pushing force to the sliding block 402.

[0026] In this embodiment, the first bolt 411 is installed at the bottom end of the outside of the sleeve 408, after adjusting the position of the support rod 409, the first bolt 411 is tightened to tightly press the support rod 409 to achieve locking (the first bolt 411 can be optionally installed, and when not installed, the return spring 410 can be dynamically adjusted); The bottom end of the support rod 409 is fixedly provided with a pressing block 412, and the bottom of the pressing block 412 is provided with a pressing groove 413 matched with the elastic stainless steel rod 401.

[0027] Local working principle: the bottom end of the support rod 409 is fixedly provided with a pressing block 412, and the bottom of the pressing block 412 is provided with a pressing groove 413 matched with the elastic stainless steel rod 401, the pressing groove 413 can fit the surface of the elastic stainless steel rod 401, avoiding local extrusion damage of the elastic stainless steel rod 401 by the support rod 409, and assisting in maintaining the deformation direction of the elastic stainless steel rod 401.

[0028] In the embodiment, the releasing mechanism 5 comprises a mounting plate 501, a pay-off groove 502, a rotating rod 503, a clockwork spring 504 and a steel wire rope 505, the mounting plate 501 is attached to the surface of the slope body 1, the end of the anchor rod 2 passes through the middle of the mounting plate 501 and fixes the mounting plate 501, the inside of the mounting plate 501 is provided with the pay-off groove 502, the rotating rod 503 is vertically and rotatably installed in the pay-off groove 502, the clockwork spring 504 is arranged between the top end of the rotating rod 503 and the inner side of the pay-off groove 502, and the bottom end of the rotating rod 503 is wound with the steel wire rope 505, and the end of the steel wire rope 505 extends to the outside of the mounting plate 501 and is connected with the edge of the vegetation net 3.

[0029] Local working principle: when the attaching mechanism 4 drives the vegetation net 3 to attach to the surface of the slope body 1, if a corner of the vegetation net 3 needs to extend to the slope surface (for example, to adapt to the concave of the slope surface), the vegetation net 3 will pull the steel wire rope 505, the steel wire rope 505 drives the rotating rod 503 to rotate around its own axis, the rotating rod 503 stretches the clockwork spring 504 (the clockwork spring 504 stores energy) in the rotating process, so that the steel wire rope 505 is released from the rotating rod 503, and the length allowance is provided for the extension of the vegetation net 3, if the corner of the vegetation net 3 needs to be shrunk due to the convex of the slope surface, the clockwork spring 504 releases the stored energy and drives the rotating rod 503 to rotate reversely, so that the excess steel wire rope 505 is re-wound on the rotating rod 503, avoiding the slack of the steel wire rope 505 causing the corner of the vegetation net 3 to be suspended.

[0030] In the embodiment, the top of the mounting plate 501 is provided in parallel with a pressing plate 506, the outer metal protective net 6 is located between the mounting plate 501 and the pressing plate 506, the second bolt 507 is installed between the pressing plate 506 and the mounting plate 501, and the second bolt 507 passes through the hole of the outer metal protective net 6.

[0031] Local working principle: by passing the second bolt 507 through the hole of the outer metal protective net 6 and connecting the pressing plate 506 and the mounting plate 501, the edge of the outer metal protective net 6 can be firmly fixed, which not only ensures that the outer metal protective net 6 can continuously press the attaching mechanism 4, but also avoids the loosening of the edge of the outer metal protective net 6 affecting the overall protection effect.

[0032] In the embodiment, the vegetation net 3 adopts a modified polyethylene three-dimensional vegetation net, the mesh aperture is 10-15 mm, and the thickness is 5-8 mm, the vegetation net 3 is interwoven to form a honeycomb soil cavity inside, which is used to enhance the adhesion stability of the soil, the spray-broadcasting substrate and the grass seeds.

[0033] Local working principle: when the vegetation net 3 is closely attached to the surface of the slope body 1, the honeycomb soil cavity can effectively intercept the soil, substrate and grass seeds sprayed, increase the contact area and friction force of the three with the vegetation net 3, and avoid loss under the action of rainwater erosion or wind force. At the same time, the three-dimensional net body can disperse the water flow velocity on the slope surface, reduce the direct erosion of the water flow on the surface of the slope body 1, provide a stable microenvironment for the germination of grass seeds and the growth of plants, and after the development of plant roots, the roots will interweave with the vegetation net 3 to form a "root-net" composite structure, further enhancing the stability of the slope body 1.

[0034] In the embodiment, the anchor rod 2 is a threaded steel anchor rod with a diameter of 20-25 mm, arranged in a plum blossom array along the slope direction of the slope body 1, the horizontal distance between adjacent two anchor rods 2 is 1.5-2 m, the vertical distance is 1-1.2 m, and the depth of the anchor rod 2 implanted into the slope body 1 is not less than 0.8 m. The end of the implanted anchor rod 2 is provided with a barb structure to improve the anchoring strength.

[0035] Local working principle: through the mechanical biting effect of the barb and the rock-soil, the tensile strength of the anchor rod 2 is converted into a constraint tensile force on the surface layer of the slope body 1. At the same time, the anchor rod 2 penetrates through the vegetation net 3, the outer metal protective net 6 and other structures, and tightly connects these structures and the slope body 1 through nut fastening, forming an integrated system of "slope body-anchor rod-protective structure", effectively inhibiting the loosening and sliding of the surface layer of the slope body 1, and providing basic anchoring support for the whole slope protection structure.

[0036] In the embodiment, the elastic stainless steel rod 401 is made of 304 stainless steel material with a diameter of 8-12 mm and a bending deformation angle range of 0-45°, and can restore to the initial state after deformation, which is used to maintain the close pressure on the vegetation net 3 for a long time.

[0037] Local working principle: when the push rod 405 applies a lateral pushing force to the elastic stainless steel rod 401 through the sliding block 402, the elastic stainless steel rod 401 will be bent along the concave-convex shape of the slope surface, and the bending part will generate a pressure perpendicular to the slope surface on the vegetation net 3, forcing the vegetation net 3 to attach to the slope surface. Even if the slope body 1 has slight settlement or deformation later, the elastic stainless steel rod 401 can adjust the deformation state through its own elastic recovery ability, continuously maintain the close pressure on the vegetation net 3, and avoid the generation of new gaps between the vegetation net 3 and the slope surface due to the deformation of the slope body 1.

[0038] In the embodiment, the outer metal protective net 6 is woven by hot-dipped galvanized steel wire with a diameter of 3-5 mm, and the mesh hole is a square structure with a side length of 50-80 mm, and the tensile strength of the net body is not less than 500 MPa.

[0039] Local working principle: After the outer metal protection net 6 is fixed by the anchor rod 2 and the pressing plate 506 of the release mechanism 5, the self-tensioning force will generate uniform and continuous pressure on the lower fitting mechanism 4. The pressure is transmitted to the elastic stainless steel rod 401 through the fitting block 403 and the push rod 405, and finally converted into the fitting power of the vegetation net 3. It is the starting power source of the linkage mechanism of "outer metal protection net 6 pressure-fitting mechanism 4 driving-elastic stainless steel rod 401 deformation". In addition, the tensile strength of the outer metal protection net 6 is not less than 500MPa, which can effectively resist the impact of falling rocks, strong wind load and rainwater erosion commonly seen in mine slopes. When the falling rocks hit, the net body can absorb the impact energy through its own deformation, avoiding direct damage to the internal vegetation net 3. Under the action of strong wind, the net body can disperse the tearing force of the wind on the vegetation net 3. When the rainwater washes, the net body can slow down the water flow, together with the vegetation net 3 to reduce soil erosion and provide a protective barrier for the growth of internal vegetation. Embodiment

[0040] The schemes in Embodiment 1 and Embodiment 2 will be further introduced in combination with specific working modes, as described below: Construction coordination stage First, drill holes on the slope body 1 according to the design of the anchor rod 2 in the plum blossom array, and implant the anchor rod 2 into the hole to ensure that the implantation depth is not less than 0.8m. The barb structure is engaged with the internal rock and soil of the slope body 1 to form an initial anchoring system. Then lay the vegetation net 3 and use the anchor rod 2 for preliminary positioning. At this time, the vegetation net 3 covers the grooves 101 on the surface of the slope body 1, and the honeycomb soil cavity has the ability to preliminarily intercept soil.

[0041] Then install the fitting mechanism 4, fix the elastic stainless steel rod 401 in the form of a cross at the corners of the vegetation net 3, make the sliding block 402 hinged with the push rod 405, and then connect the fitting block 403 with the elastic stainless steel rod 401 through the sleeve 408 and the support rod 409. At the same time, install the release mechanism 5, fix the mounting plate 501 on the surface of the slope body 1 through the anchor rod 2, connect the steel wire rope 505 with the corners of the vegetation net 3, and make the spring 504 in the initial force storage state.

[0042] Finally, cover the outer metal protection net 6, fasten the net body through the anchor rod 2, and fix the edges of the outer metal protection net 6 by using the pressing plate 506 and the second bolt 507 of the release mechanism 5. After the outer metal protection net 6 is tensioned, it exerts pressure on the fitting block 403, drives the fitting mechanism 4 to start, and at the same time, the release mechanism 5 adjusts the length of the steel wire rope 505 according to the fitting dynamics of the vegetation net 3. The three work together to complete the construction closed loop of "positioning-pressing-adjustment".

[0043] Dynamic adaptation stage The continuous pressure of the outer metal protection net 6 acts on the fitting block 403, which drives the push rod 405 in the strip-shaped groove 404 to rotate, and the push rod 405 pushes the sliding block 402 to slide along the elastic stainless steel rod 401: When there is a protrusion on the surface of the slope body 1, the sliding block 402 slides towards the protrusion, causing the corresponding part of the elastic stainless steel rod 401 to bend upwards and deform, thereby driving the vegetation net 3 to wrap the protruding surface and avoiding gaps between the net body and the protrusion; When there is a groove 101 or a depression on the surface of the slope body 1, the sliding block 402 slides towards the depression, causing the corresponding part of the elastic stainless steel rod 401 to bend downwards and deform, thereby pulling the vegetation net 3 to embed into the depression and ensuring that the net body is attached to the bottom of the depression; In this process, the steel wire rope 505 of the release mechanism 5 moves synchronously with the stretching / contraction of the vegetation net 3. When the vegetation net 3 is stretched, the steel wire rope 505 pulls the rotating rod 503 to rotate and stretch the clockwork spring 504, releasing the length margin. When the vegetation net 3 is contracted, the clockwork spring 504 resets to pull the rotating rod 503 to recover the steel wire rope 505, avoiding slack. At the same time, the reset spring 410 of the fitting mechanism 4 can slide up and down through the support rod 409, buffering the local stress of the slope surface, avoiding damage to the elastic stainless steel rod 401 or the push rod 405 due to stress concentration, and achieving dynamic adaptation to the irregular shape of the slope body 1.

[0044] Long-term protection stage After the vegetation net 3 is closely attached to the slope body 1, the honeycomb soil-containing cavities stably intercept soil, spray-broadcasting substrate, and grass seeds, and cooperate with the slowed water flow / wind erosion of the outer metal protection net 6, so that the grass seeds can germinate and grow smoothly, and the plant root system gradually interweaves with the vegetation net 3 to form a "root system-net body" composite layer, enhancing soil adhesion.

[0045] The elastic stainless steel rod 401 continuously maintains the fitting pressure on the vegetation net 3 by virtue of the elastic recovery ability of 304 stainless steel. Even if the slope body 1 slightly settles or deforms, it can still adjust and adapt through its own deformation, avoiding the vegetation net 3 from being detached from the slope surface. The outer metal protection net 6 continuously plays a protective role, resisting external force impacts such as rockfall and strong winds, protecting the internal vegetation net 3 and vegetation layer from damage. The barb structure of the anchor rod 2 long-term engages with the internal rock-soil of the slope body 1, ensuring the anchoring stability of the entire slope protection structure, and reducing the risk of protection failure caused by the loosening of the surface layer of the slope body 1.

[0046] In addition, the extrusion spring 406 and the reset spring 410 of the fitting mechanism 4 can long-term buffer the stress fluctuation of the slope surface, and the clockwork spring 504 of the release mechanism 5 maintains the appropriate tension of the steel wire rope 505. The components collectively form a long-term protection system of "dynamic fitting + external protection + stress buffering", effectively solving the problems of loose fitting, easy loss, and easy tearing of traditional vegetation nets, reducing the cost of secondary repair, and realizing the ecological restoration and long-term stability of the mine slope.

[0047] The above merely illustrates the further embodiments of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can make equivalent replacements or changes according to the technical solutions and concepts of the present application within the disclosed scope, which shall all fall into the protection scope of the present application.

Claims

1. A slope protection structure for mine geological environment management, comprising a slope body (1) and a groove (101) located on the surface of the slope body (1); Its characteristics are: Anchor rods (2), the anchor rods (2) are implanted into the slope (1) at intervals; A vegetation net (3), the vegetation net (3) is laid on the surface of the groove (101) and is initially positioned by the anchor rod (2), and the vegetation net (3) is in a movable state in the initial state; A laminating mechanism (4), the laminating mechanism (4) is arranged outside the vegetation net (3) and is distributed at intervals along the direction of the slope (1); A release mechanism (5), the release mechanism (5) is installed on the surface of the slope (1) and connected to the corners of the vegetation net (3); The outer metal protective net (6) covers the outside of the fitting mechanism (4) and is fixed to the slope (1) through the anchor rod (2). The outer metal protective net (6) applies pressure to the surface of the vegetation net (3) through the fitting mechanism (4). The vegetation net (3) is tightly fitted to the inner side of the groove (101). The release mechanism (5) provides an adjustment margin for the vegetation net (3) to adapt to the slope surface.

2. The slope protection structure for mine geological environment management according to claim 1, characterized in that: The laminating mechanism (4) comprises an elastic stainless steel rod (401), a slider (402), a laminating block (403), a strip groove (404), a push rod (405) and an extrusion spring (406). The elastic stainless steel rod (401) is cross-shaped and fixed at the corners of the vegetation net (3). The ends of the elastic stainless steel rod (401) are all slidably provided with sliders (402). The laminating block (403) is parallelly provided at the middle position of the outer side of the vegetation net (3). The bottom of the laminating block (403) is provided with strip grooves (404) in an annular array. The interior of the strip grooves (404) is hingedly provided with push rods (405). The bottom ends of the push rods (405) are respectively hinged to the sliders (402). An extrusion spring (406) is provided between the inner end of the strip groove (404) and the push rod (405).

3. The slope protection structure for mine geological environment management according to claim 2, characterized in that: The fitting mechanism (4) further comprises a threaded hole (407), a sleeve (408), a support rod (409), and a return spring (410). The sleeve (408) is threadedly mounted at the middle position of the bottom of the fitting block (403). The bottom of the fitting block (403) is provided with a threaded hole (407) that cooperates with the sleeve (408). The interior of the sleeve (408) is slidably provided with a support rod (409). A return spring (410) is provided between the support rod (409) and the inner top of the sleeve (408).

4. The slope protection structure for mine geological environment management according to claim 3 is characterized by: A first bolt (411) is installed at the bottom end of the outer side of the sleeve (408), a pressing block (412) is fixed to the bottom end of the support rod (409), and a pressing groove (413) is provided at the bottom of the pressing block (412) to cooperate with the elastic stainless steel rod (401).

5. The slope protection structure for mine geological environment management according to claim 1, characterized in that: The release mechanism (5) comprises a mounting plate (501), a wire-releasing groove (502), a rotating rod (503), a spring spring (504) and a steel wire rope (505). The mounting plate (501) is attached to the surface of the slope (1). The end of the anchor rod (2) passes through the middle of the mounting plate (501) and fixes the mounting plate (501). A wire-releasing groove (502) is provided inside the mounting plate (501). A rotating rod (503) is vertically rotated inside the wire-releasing groove (502). A spring spring (504) is provided between the top end of the rotating rod (503) and the inner side of the wire-releasing groove (502). A steel wire rope (505) is wound around the bottom end of the rotating rod (503). The end of the steel wire rope (505) slides and extends to the outside of the mounting plate (501) and is connected to the edge of the vegetation net (3).

6. The slope protection structure for mine geological environment management according to claim 5, characterized in that: A pressing plate (506) is provided parallel to the top of the mounting plate (501), the outer metal protective net (6) is located between the mounting plate (501) and the pressing plate (506), a second bolt (507) is installed between the pressing plate (506) and the mounting plate (501), and the second bolt (507) passes through a hole in the outer metal protective net (6).

7. The slope protection structure for mine geological environment management according to claim 1, characterized in that: The vegetation net (3) adopts a modified polyethylene three-dimensional vegetation net with a mesh size of 10-15 mm and a thickness of 5-8 mm. The vegetation net (3) is interwoven to form a honeycomb soil cavity for enhancing the attachment stability of soil, spraying matrix and grass seeds.

8. The slope protection structure for mine geological environment management according to claim 1, characterized in that: The anchor rods (2) are threaded steel anchor rods with a diameter of 20-25 mm and are distributed in a plum blossom array along the slope direction of the slope body (1). The horizontal spacing between two adjacent anchor rods (2) is 1.5-2 m, and the vertical spacing is 1-1.2 m. The depth of the anchor rods (2) implanted into the slope body (1) is not less than 0.8 m, and the implantation end of the anchor rods (2) is provided with a barb structure to improve the anchoring strength.

9. The slope protection structure for mine geological environment management according to claim 1, characterized in that: The elastic stainless steel rod (401) is made of 304 stainless steel, has a diameter of 8-12 mm, a bending deformation angle range of 0-45°, and can be restored to its original shape after deformation, and is used to maintain the fitting pressure on the vegetation net (3) for a long time.

10. The slope protection structure for mine geological environment management according to claim 1, characterized in that: The outer metal protective net (6) is woven from hot-dip galvanized steel wires with a diameter of 3-5 mm, a mesh having a square structure and a side length of 50-80 mm, and a tensile strength of not less than 500 MPa.

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