Rock mass-soil-plant-microorganism side slope ecological restoration system and construction method

Abstract

The invention provides a rock mass-soil-plant-microorganism side slope ecological restoration system and a construction method, and is characterized in that a multi-stage slope cutting ridge platform is arranged on a rock mass side slope for unloading, a longitudinal drainage ditch is arranged at the ridge platform for dredging and collecting water, washing of nutrient soil in a geocell is reduced, and the load weight of the geocell is reduced; grouting anchor rods are arranged, the earthwork standard rooms are tensioned and fixed through anchor rod-tie bar-cross-shaped clamping bars, and the adjacent earthwork standard rooms are connected through U-shaped steel bar nails. A soil-plant-microorganism integrated matrix is sprayed and seeded on the surface of the geocell, the plant survival rate and the growth speed are increased through plant-microorganism interaction, and the original plant community structure and the ecological system function are rapidly recovered.

Description

Technical Field

[0001] The present invention relates to the field of ecological restoration engineering of rock slopes such as mines and highways, and in particular to a rock mass-soil-plant-microorganism slope ecological restoration system and a construction method. Background Art

[0002] Social and economic development is inseparable from various development and construction projects. While promoting the rapid development of regional economy, development and construction projects also damage the natural ecological environment of the construction area and its surrounding areas. High filling and deep excavation in the construction of railways, highways, water conservancy, mining and other projects directly damage the surface, resulting in a large area of ​​exposed high and steep slopes, leading to the deterioration of the ecological environment around the project area. In particular, the addition of large areas of exposed slopes causes landscape imbalance and soil erosion, and even causes secondary geological disasters such as landslides and collapses; the main manifestations are changes in topography, disturbance of soil structure, destruction of plant communities, reduction of biodiversity, impact on regional climate, and the occurrence and aggravation of soil erosion. Therefore, ecological restoration and reconstruction of exposed slopes (also known as slope greening) is imminent.

[0003] At present, the slope regreening management technology on some special slopes at home and abroad is still relatively weak. For example, high and steep rock slopes as high as tens of meters or even hundreds of meters are mainly managed by slope cutting, setting up steps, hanging nets and spraying. There are still the following problems with the use of these technologies: (1) Since the geocell serves as the root soil skeleton of the regreening plants, it has a large bearing capacity and is easy to slide on large areas of high and steep rock slopes, making it difficult to install and fix. (2) Although traditional technologies also set up multi-level slope cutting platforms, the platforms lack effective longitudinal drainage ditches for timely drainage and water collection, which can easily cause two problems: ① Rainwater washes the planting soil layer backfilled in the geocell, resulting in a large amount of nutrient soil for plant growth being washed away; ② A large amount of collected water is contained in the planting soil layer of the geocell, which increases the load weight of the geocell and, in severe cases, tears the geocell. (3) The installation efficiency of the geocells at the joints is low and the connections are not firm. (4) Only plants are used to carry out ecological restoration of exposed slopes. The plant survival rate is low, the growth rate is slow, and the regreening efficiency is low, making it difficult to restore the original plant community structure and ecosystem functions.

[0004] Therefore, the main problems that need to be solved at present are how to improve the installation efficiency and fixity of geocells on large-scale steep rock slopes, reduce the washing of nutrient soil in geocells by rainwater, reduce the load weight of geocells, use new ecological restoration technologies to carry out ecological restoration of exposed slopes, improve plant survival rate and growth rate, and quickly restore the native plant community structure and ecosystem function. Summary of the invention

[0005] The purpose of the present invention is to provide a rock mass-soil-plant-microorganism slope ecological restoration system and construction method for solving the above-mentioned technical problems.

[0006] In order to solve the above technical problems, the present invention provides a construction method of a rock mass-soil-plant-microorganism slope ecological restoration system, comprising the following steps: Step 1: Slope cleaning: clean the floating stones on the rock slope, measure and mark out the location of each anchor rod, the excavation line of the slope cutting platform, the excavation line of the pit at the bottom of the slope, and the construction red line of the toe sliding wall; Step 2: Excavate the sills and pits: excavate the sills in stages from the top of the slope to the bottom according to the excavation line of the sills, excavate the longitudinal drainage ditch on each sill, and lay a layer of permeable geotextile on the top of the longitudinal drainage ditch; Step 3: Construction of toe sliding wall and drainage ditch: excavate the pit at the bottom of the slope according to the excavation line of the pit at the bottom of the slope, excavate several longitudinal drainage ditches at the bottom of the pit at the bottom of the slope, and excavate transverse drainage ditches at the bottom of the pit at uniform intervals; build the toe sliding wall according to the construction red line of the toe sliding wall; Step 4: Anchor bolt installation: Drill anchor bolt holes according to the anchor bolt positioning line, install anchor bolts, and inject cement slurry for anchoring. After the slope is cut, set the top anchor bolt guardrail, and lay several layers of steel mesh on the rock slope. Step 5: pouring ecological concrete: pour the ecological concrete layer from the bottom of the slope to the top of the slope. The ecological concrete layer will fully cover the steel mesh. The ecological concrete layer will be poured in sections and sections. The pouring thickness on the rock slope, the slope cutting platform, and the pit at the bottom of the slope will be consistent. Step 6: Install the reinforcement: install the anchor on the anchor rod, fix multiple reinforcements on the anchor, and evenly distribute the multiple reinforcements. Each reinforcement end is provided with a threaded enlarged head; Step 7: Lay fixed geocells in blocks: Lay geocells from top to bottom; Step 8: Prepare the nutrient soil layer: prepare the nutrient soil, stir the nutrient soil evenly and then sieve it; Step 9: Plant and microorganism screening: Select microorganisms and plant seeds according to local meteorological conditions and surrounding environment; Step 10: Spray the nutrient soil layer: spray the prepared nutrient soil evenly from the top to the bottom of the slope to fill the geocell; Step 11, spraying soil-plant-microorganism integrated matrix: evenly mix the selected plant seeds, microorganisms, and nutrients into an integrated matrix, spray the soil-plant-microorganism integrated matrix to the surface of the geocell, cover the nutrient soil layer, and lay a metal mesh on the soil-plant-microorganism integrated matrix; Step 12: Water spraying and maintenance: Use a mister to spray the soil-plant-microorganism integrated matrix on the geocell. After the seeds germinate, water them for maintenance. Under the interaction of plants and microorganisms, the slope will be regreened.

[0007] The beneficial effects of the present invention are: 1. The present invention arranges multi-level slope cutting platforms and pits at the bottom of the slope on the rock slope, longitudinal drainage ditches are arranged in the platforms, and longitudinal and transverse drainage ditches are arranged in the pits, which reduces the washing of nutrient soil in the geocell by rainwater and reduces the load weight of the geocell.

[0008] 2. The present invention adopts an anchor rod-tension bar-cross-type clamp structure to fix the geocell, and the tension degree of the cross-type clamp on the geocell is achieved by adjusting the nut, thereby improving the installation and fixing efficiency of the geocell.

[0009] 3. The adjacent geocells of the present invention are connected and fixed by U-shaped steel nails at the joints, and the adjacent geocells are connected efficiently and firmly without disconnection.

[0010] 4. The present invention selects excellent microbial agents and plant seeds with high survival rate and strong metabolic capacity through various tests, and evenly mixes the selected plant seeds, microorganisms and nutrients into an integrated matrix and sprays it on the surface of the geocell. Different types of vegetation provide good conditions for the growth of microorganisms. The roots of plants release a large amount of carbon sources. The decomposition and conversion of vegetation withering increases the content of nutrients such as carbon, nitrogen and phosphorus in the soil, affecting the metabolic activity of soil microbial communities. The development of soil microbial communities in turn promotes the growth of plants. The joint action of plants and microorganisms effectively improves the greening effect of the slope. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is the overall structural diagram of the rock mass-soil-plant-microorganism slope ecological restoration system of the present invention; Figure 2 It is a partial detailed diagram of the anchor rod-tension bar-cross-type clamping bar tightening and fixing the geocell of the present invention; Figure 3 It is a detailed diagram of the ecological restoration structure of the slope cutting platform of the present invention; Figure 4 It is a detailed diagram of the combined structure of the bottom pit and toe sliding wall of the present invention; Figure 5 This is a schematic diagram of the geocell division and block arrangement on the rock mass slope of the present invention; Figure 6 This is a schematic diagram of the splicing of adjacent geocells of the present invention; Figure 7 This is a diagram of the fixing connection of adjacent geocells with U-shaped steel bar nails according to the present invention; Figure 8 This is a structural diagram of a cross-shaped clamping geocell of the present invention; Fig. 9 It is a plane view of the connection between the cross-shaped clamp and the tie rod with threaded enlarged head of the present invention; Fig.10It is a structural diagram of the connection between the cross-shaped clamping bar and the tensioning bar with a threaded enlarged head of the present invention.

[0012] Among them: 1- rock slope; 2- anchor hole; 3- cement slurry; 4- anchor; 5- anchor guardrail on top of slope; 6- steel mesh; 7- ecological concrete layer; 8- steel wire rope; 9- steel plate; 10- anchor; 11- tie bar; 12- cross-shaped clamp; 13- geocell; 14- U-shaped steel nail; 15- step nail; 16- cut slope step; 17- permeable geotextile; 18- longitudinal drainage ditch of step; 19- pit at the bottom of slope; 20- transverse drainage ditch at the bottom of trough; 21- toe sliding wall; 22- PVC pipe; 23- drainage ditch; 24- natural ground; 25- longitudinal drainage ditch at the bottom of trough; 26- nut; 27- gasket; 28- threaded enlarged head; 29- thread. DETAILED DESCRIPTION

[0013] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0014] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0015] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0016] like Figure 1-Figure 10 The present invention provides a rock mass-soil-plant-microorganism slope ecological restoration system and construction method, comprising the following steps: Step 1: Slope cleaning: Be familiar with the design drawings and relevant document requirements, prepare the construction plan for the rock-soil-plant-microorganism slope ecological restoration system and the special plan for high-altitude operation safety, clean the pumice on the rock slope 1, measure and stake out the location of each anchor rod 4, the excavation line of the slope cutting platform 16, the excavation line of the pit 19 at the bottom of the slope, and the construction red line of the toe sliding wall 21 on site, and determine the number of blocks and the size of each block of the geocell 13 according to the size and slope of the rock slope 1.

[0017] Step 2, excavating steps and pits: using an excavator to excavate the slope-cutting steps 16 in stages from top to bottom along the excavation line of the slope-cutting steps 16, excavating the longitudinal drainage ditch 18 of the steps on each level of the slope-cutting steps 16, and laying a layer of permeable geotextile 17 on the top of the longitudinal drainage ditch 18 of the steps.

[0018] Step 3, construction of toe sliding wall and drainage ditch: excavate the pit 19 at the bottom of the slope according to the excavation line of the pit 19 at the bottom of the slope, excavate three longitudinal drainage ditches 25 at the bottom of the pit 19 at the bottom of the slope, excavate transverse drainage ditches 20 at the bottom of the groove at uniform intervals, the longitudinal drainage ditches 25 at the bottom of the groove and the transverse drainage ditches 20 at the bottom of the groove intersect each other, and lay permeable geotextile 17 on the upper part of the longitudinal and transverse drainage ditches at the bottom of the groove. Build the toe sliding wall 21 according to the construction red line of the toe sliding wall 21, install PVC pipes 22 in the toe sliding wall 21, and the PVC pipes 22 are connected to the transverse drainage ditches 20 at the bottom of the groove, and pour the drainage ditch 23 outside the toe sliding wall 21 to overlap the natural ground 24.

[0019] Step 4: Anchoring: Drill anchor holes 2 according to the positioning line of anchor 4, install anchor 4, and inject cement slurry 3 for anchoring. After the slope is cut, set the top anchor guardrail 5. Lay steel mesh 6 on the rock slope 1. The steel mesh 6 is laid in three layers. The top of the steel mesh 6 is wrapped around the top anchor guardrail 5. Each anchor 4 passes through the grid of the steel mesh 6. A steel pad 9 is set on the anchor 4 to press the steel mesh 6 to prevent it from rebounding and bulging.

[0020] Step 5, pouring ecological concrete: pouring ecological concrete layer 7 from the bottom of the slope to the top of the slope, the ecological concrete layer 7 completely covers the steel mesh 6, and the ecological concrete layer 7 is poured in sections and sections, and the pouring thickness on the rock slope 1, the slope cutting platform 16, and the pit 19 at the bottom of the slope is consistent.

[0021] Step 6, installing the reinforcing bars: installing the anchor 10 on the anchor rod 4, fixing a plurality of reinforcing bars 11 on the anchor 10, the plurality of reinforcing bars 11 are evenly dispersedly arranged, and a threaded enlarged head 28 is provided at the end of each reinforcing bar 11.

[0022] Step 7, laying fixed geocells in blocks: laying geocells 13 from top to bottom according to the designed number and size of geocells 13 blocks, laying A1 blocks, B1 blocks, C1 blocks → A2 blocks, B2 blocks, C2 blocks → A3 blocks, B3 blocks, C3 blocks → A4 blocks, B5 blocks, C4 blocks from top to bottom, the top A1 blocks, B1 blocks, C1 blocks are all tied to the top anchor guardrail 5 through wire ropes 8, after the tie bars 11 pass through the grid of the geocell 13, the cross-shaped clamps 12 are put on the threaded enlarged heads 28 at the ends of the tie bars 11, and the nuts 26 and gaskets 27 are installed, after the cross-shaped clamps 12 are stuck on the grid on the geocell 13, the tightness of the nuts 26 is adjusted to make the cross-shaped clamps 12 press the geocell 13, thereby realizing the function of fixing the geocell 13 by the anchor rod-tie bar-cross-shaped clamp structure. U-shaped steel nails 14 are installed between adjacent geocells 13-A1 block and B1 block, A1 block and A2 block for connection, and vertical step nails 15 are driven at the slope cutting step 16 for reinforcement and locking. The U-shaped steel nails 14 and the step nails 15 need to be driven into the rock slope 1 to a certain depth.

[0023] Step 8. Prepare the nutrient soil layer: prepare the nutrient soil according to a certain proportion of local fertile soil, microbial organic fertilizer, compound fertilizer, water retaining agent, improver and other materials. After the nutrient soil is evenly stirred, it needs to be passed through a 1cm sieve to keep the prepared nutrient soil layer fine and uniform.

[0024] Step 9. Plant and microbial screening: Cultivate different types of microbial strains in the laboratory in combination with local climatic conditions, and select strains with high activity and strong vitality through relevant experiments; at the same time, mix plant seeds according to local meteorological conditions and surrounding environment, and select plant seeds that can promote the growth of microorganisms.

[0025] Step 10, spraying the nutrient soil layer: spray the prepared nutrient soil layer evenly from the top to the bottom of the slope through a sprayer to fill the geocell 13. The thickness of the sprayed nutrient soil layer must be uniform and consistent, 15cm-20cm.

[0026] Step 11, spraying soil-plant-microorganism integrated matrix: evenly mix the selected plant seeds, microorganisms, and nutrients into an integrated matrix, spray the soil-plant-microorganism integrated matrix to the surface of the geocell 13, cover the nutrient soil layer, and lay a metal mesh on the soil-plant-microorganism integrated matrix.

[0027] Step 12: water spraying and curing: spray the soil-plant-microorganism integrated matrix on the geocell 13 with a mister, and water the matrix after the seeds germinate, so that the slope can be quickly regreened under the interaction between plants and microorganisms.

[0028] The present invention also discloses a rock mass-soil-plant-microorganism slope ecological restoration system, such as Figure 1-2 The partial detailed drawing of the anchor rod-tensioning-cross-type clamping bar tensioning and fixing geocell shown mainly includes a rock slope 1, anchor rods 4, slope top anchor rod guardrail 5, steel mesh 6, ecological concrete layer 7, steel pad 9, geocell 13, etc. A plurality of anchor rods 4 are driven on the rock slope 1, and the anchor rods 4 are driven at even intervals. A steel mesh 6 is laid on the rock slope 1, and the upper part of the steel mesh 6 is wrapped around the slope top anchor rod guardrail 5. The steel mesh 6 is compressed by the steel pad 9 on the anchor rod 4, an ecological concrete layer 7 is poured on the steel mesh 6, and a geocell 13 is laid on the ecological concrete layer 7.

[0029] like Figure 3 The detailed diagram of the ecological restoration structure of the slope-cutting platform shown mainly includes a rock slope 1, a steel mesh 6, an ecological concrete layer 7, a geocell 13, a platform nail 15, a slope-cutting platform 16, a permeable geotextile 17, and a longitudinal drainage ditch 18 for the platform. A multi-level slope-cutting platform 16 is excavated on the rock slope 1, and a longitudinal drainage ditch 18 for the platform is excavated on the slope-cutting platform 16. A permeable geotextile 17 is laid on the top of the longitudinal drainage ditch 18 for the platform. The steel mesh 6 and the ecological concrete layer 7 are located on the upper part of the permeable geotextile 17. Platform nails 15 are driven into the side of the longitudinal drainage ditch 18 of the platform, and the geocell 13 is strengthened and fixed by the platform nails 15.

[0030] like Figure 4 The detailed drawing of the slope bottom pit-toe sliding wall combination structure shown mainly includes a rock slope 1, a geocell 13-A4 block, a geocell 13-B4 block, a geocell 13-C4 block, a slope bottom pit 19, a transverse drainage ditch 20 at the bottom of the trough, a toe sliding wall 21, a PVC pipe 22, a drainage ditch 23, a natural ground 24, a longitudinal drainage ditch 25 at the bottom of the trough, etc. The slope bottom pit 19 is excavated at the bottom of the rock slope 1, and a transverse drainage ditch 20 and a longitudinal drainage ditch 25 at the bottom of the trough are excavated at the bottom of the slope bottom pit 19. Three longitudinal drainage ditches 25 at the bottom of the trough are arranged, and a plurality of transverse drainage ditches 20 at the bottom of the trough are arranged at even intervals, and the longitudinal drainage ditches 25 at the bottom of the trough intersect with the transverse drainage ditches 20 at the bottom of the trough. A toe sliding wall 21 is arranged outside the pit 19 at the bottom of the slope, a drainage ditch 23 is arranged outside the toe sliding wall 21 to overlap the natural ground 24, a PVC pipe 22 is arranged inside the toe sliding wall 21, and the PVC pipe 22 is communicated with the horizontal drainage ditch 20 at the bottom of the groove. The geocell 13-A4 block, the geocell 13-B4 block, and the geocell 13-C4 block at the bottom of the geocell 13 are all placed in the pit 19 at the bottom of the slope.

[0031] like Figure 5The schematic diagram of the zoning and block construction of geocells on the rock slope shown in the figure, the geocell 13 is arranged in multiple blocks along the rock slope 1, namely geocell 13-A1 block, geocell 13-A2 block, geocell 13-A3 block, geocell 13-A4 block, geocell 13-B1 block, geocell 13-B2 block, geocell 13-B3 block, geocell 13-B4 block, geocell 13-C1 block, geocell 13-C2 block, geocell 13-C3 block, geocell 13-C4 block, the geocell 13-A1 block, geocell 13-B1 block, geocell 13-C1 block at the top of the geocell 13 are fixed to the slope top anchor guardrail 5 by steel wire rope 8.

[0032] like Figure 6-7 As shown in the schematic diagram of splicing adjacent geocells, the geocells 13 are fixed between the adjacent geocells 13-A1 and 13-A2, and between the geocells 13-A1 and 13-B1, using U-shaped steel nails 14, and the U-shaped steel nails 14 must be driven into the rock slope 1.

[0033] like Figure 2 , 8 The partial detailed diagram of the anchor rod-tension bar-cross clamp tightening and fixing geocell shown in the figure includes an anchor rod 4, an anchor 10, a tension bar 11, a cross clamp 12, a geocell 13, etc. The anchor 10 is arranged at the end of the anchor rod 4, and a plurality of tension bars 11 are arranged at the end of the anchor 10. The tension bars 11 are dispersedly arranged along the slope surface, and the cross clamp 12 is fixed to the end of the tension bar 11, and the cross clamp 12 is clamped on the grid of the geocell 13.

[0034] like Figure 9-10 The cross-shaped clamp and the tension bar with threaded enlarged head connection diagram shown in the figure include tension bars 11, cross-shaped clamp bars 12, geocells 13, nuts 26, gaskets 27, threaded enlarged heads 28, threads 29, etc., wherein the threaded enlarged head 28 is arranged at the end of the tension bar 11, and the threaded enlarged head 28 is arranged with threads 29, the cross-shaped clamp bar 12 is sleeved on the threaded enlarged head 28, the gasket 27 is arranged at the back of the cross-shaped clamp bar 12, and the nut 26 is arranged at the back of the gasket 27, and the nut 26 can adjust the position of the cross-shaped clamp bar 12 on the threaded enlarged head 28, and the geocell 13 is fixed by tightening the cross-shaped clamp bar 12 through the tension bars 11, and the purpose of tightening and adjusting the geocell 13 by the cross-shaped clamp bar 12 is achieved by adjusting the nut 26, so as to realize the function of tightening and fixing the geocell by the anchor rod-tension bar structure.

[0035] like Figure 1The overall structure of the rock mass-soil-plant-microorganism slope ecological restoration system is shown in the geocell 13. The nutrient soil layer is sprayed in the geocell 13, and the surface layer is sprayed with the improved soil-plant-microorganism integrated matrix to improve the greening effect of the rock mass slope through the plant-microorganism interaction.

[0036] The present invention is not limited to the above-mentioned optimal implementation mode. Anyone can derive other various forms of products under the inspiration of the present invention. However, no matter what changes are made in the shape or structure, all technical solutions that are the same or similar to those of the present application fall within the protection scope of the present invention.

Claims

1. The construction method of the rock mass-soil-plant-microorganism slope ecological restoration system is characterized by: The following steps are involved: Step 1: Slope cleaning: clean the floating stones on the rock slope (1), measure and lay out the location of each anchor rod (4), the excavation line of the slope cutting platform (16), the excavation line of the pit at the bottom of the slope (19), and the construction red line of the toe sliding wall (21); Step 2, excavating steps and pits: excavating the steps (16) in stages from the top of the slope to the bottom according to the excavation line of the steps (16), excavating the longitudinal drainage ditch (18) on each step of the steps (16), and laying a layer of permeable geotextile (17) on the top of the longitudinal drainage ditch (18); Step 3, construction of toe sliding wall and drainage ditch: excavating the pit (19) at the bottom of the slope according to the excavation line of the pit (19) at the bottom of the slope, excavating a plurality of longitudinal drainage ditches (25) at the bottom of the pit (19) at the bottom of the slope, and excavating transverse drainage ditches (20) at the bottom of the pit at even intervals; and building the toe sliding wall (21) according to the construction red line of the toe sliding wall (21); Step 4: Driving anchor rods: drilling anchor rod holes (2) according to the positioning lines of the anchor rods (4), driving the anchor rods (4), and injecting cement slurry (3) for anchoring. After the slope is cut, a slope top anchor rod guardrail (5) is set, and several layers of steel mesh (6) are laid on the rock slope (1); Step 5: pouring ecological concrete: pouring an ecological concrete layer (7) from the bottom of the slope to the top of the slope, the ecological concrete layer (7) completely covers the steel mesh (6), and the ecological concrete layer (7) is poured in sections; Step 6, installing the reinforcing bars: installing the anchor (10) on the anchor rod (4), fixing a plurality of reinforcing bars (11) on the anchor (10), the plurality of reinforcing bars (11) being evenly dispersed and arranged, and a threaded enlarged head (28) being provided at the end of each reinforcing bar (11); Step 7: Lay and fix the geocells in blocks: Lay the geocells (13) from top to bottom; Step 8: Prepare the nutrient soil layer; Step 9: Plant and microorganism screening; Step 10: Spraying the nutrient soil layer; Step 11: Spraying the soil-plant-microorganism integrated matrix, and then laying the metal mesh; Step 12: water spraying and curing: spraying and curing the soil-plant-microorganism integrated matrix on the geocell (13).

2. The construction method of the rock mass-soil-plant-microorganism slope ecological restoration system according to claim 1 is characterized by: In step 3, the longitudinal drainage ditch (25) at the bottom of the trough and the transverse drainage ditch (20) at the bottom of the trough intersect each other, a permeable geotextile (17) is laid on the upper part of the longitudinal and transverse drainage ditches at the bottom of the trough, a PVC pipe (22) is installed in the toe sliding wall (21), the PVC pipe (22) is connected to the transverse drainage ditch (20) at the bottom of the trough, and a drainage ditch (23) is poured outside the toe sliding wall (21) to overlap with the natural ground (24).

3. The construction method of the rock mass-soil-plant-microorganism slope ecological restoration system according to claim 1 is characterized by: In step 4, the top of the steel mesh (6) is wound around the slope top anchor guardrail (5), each anchor (4) passes through the grid of the steel mesh (6), and a steel pad (9) is arranged on the anchor (4) to press the steel mesh (6).

4. The construction method of the rock mass-soil-plant-microorganism slope ecological restoration system according to claim 1 is characterized by: In step seven, A1 block, B1 block, C1 block → A2 block, B2 block, C2 block → A3 block, B3 block, C3 block → A4 block, B5 block, C4 block are laid in order from top to bottom, and the top A1 block, B1 block, C1 block are all tied to the slope top anchor guardrail (5) through steel wire ropes (8).

5. The construction method of the rock mass-soil-plant-microorganism slope ecological restoration system according to claim 1 is characterized by: After the tie bars (11) pass through the grids of the geocell (13), the cross-shaped clamp bars (12) are put on the threaded enlarged heads (28) at the ends of the tie bars (11), and nuts (26) and gaskets (27) are installed. After the cross-shaped clamp bars (12) are clamped on the grids of the geocell (13), the tightness of the nuts (26) is adjusted so that the cross-shaped clamp bars (12) press the geocell (13), thereby realizing the anchor rod-tie bar-cross-shaped clamp bar structure to fix the geocell (13).

6. The construction method of the rock mass-soil-plant-microorganism slope ecological restoration system according to claim 4 is characterized by: U-shaped steel bar nails (14) are installed between adjacent A1 blocks and B1 blocks, and A1 blocks and A2 blocks for connection. At the same time, vertical step nails (15) are driven at the slope cutting step (16). The U-shaped steel bar nails (14) and the step nails (15) are driven into the rock mass slope (1).

7. The construction method of the rock mass-soil-plant-microorganism slope ecological restoration system according to claim 1 is characterized by: In step ten, the thickness of the nutrient soil layer sprayed is 15cm-20cm.

8. A rock mass-soil-plant-microorganism slope ecological restoration system, characterized by: The method is obtained by constructing the rock-soil-plant-microorganism slope ecological restoration system according to any one of claims 1 to 7.

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