CN110593281A - Ecological Protection System and Construction Method for High and Steep Rock Slope - Google Patents

Abstract

The invention discloses an ecological protection system for a high and steep rocky slope and a construction method thereof, relates to the technical field of ecological protection, and provides an ecological protection system which is suitable for the high and steep rocky slope and is simple and convenient to construct. The side slope ecological protection system comprises a plurality of protection bodies, each protection body comprises a plant growth bag, a reinforcing rope, a metal flexible net and at least three anchor rods, the anchor rods are anchored on the side slope, plant growth bag spaces are formed among the anchor rods, the reinforcing ropes are connected with the anchor rods and surround the plant growth bag spaces, the metal flexible nets are unfolded and connected with the reinforcing ropes, the plant growth bags are located in the plant growth bag spaces and located between the side slope and the metal flexible nets, filling ports are formed in the plant growth bags, soil matrix is filled in the plant growth bags, the plant growth bags are connected with the anchor rods, and the plant growth bags are tightly pressed by the metal flexible nets; the protection bodies are closely arranged to form an ecological protection system covering the side slope. During construction, the anchor rods, the plant growth bags, the reinforcing ropes, the metal flexible nets and the like are arranged and then the soil-dressing matrix is filled.

Description

Ecological Protection System and Construction Method for High and Steep Rock Slope

technical field

The invention relates to the technical field of ecological protection, in particular to a slope ecological protection system and a construction method thereof.

Background technique

Slope flexible ecological protection is mainly to plant plants on the slope or combine plants with flexible structures, and use plant roots or flexible protection systems to consolidate the slope soil to effectively stabilize the slope, so as to achieve the purpose of protecting the slope. Ecological protection also plays an irreplaceable ecological function in terms of improving environmental quality, beautifying and purifying the environment, maintaining ecological balance, and coordinating the surrounding landscape. It is a green and environmentally friendly protection method.

At present, the commonly used ecological protection technologies for rocky slopes include spray planting technology, planting bags (strips, pots), floating table planting grooves, hanging cage bricks, hanging metal planting cages, planting hole planting, concrete frame beam method, etc. The Chinese patent with the application number 201811270047.4 discloses an ecological protection structure for rocky cutting slopes of high-speed railways, including N-level ecological protection slopes, where N is a positive integer; each level of ecological protection slopes includes the main body of the slope, multiple main anchors, A plurality of ecological bags and steel rope grid nets, the plurality of main anchor rods are inserted in the main body of the slope, anchor piers are arranged at the intersection of the main anchor rods and the surface of the slope main body, and anchor piers are arranged outside the anchor piers The head is closed; the plurality of ecological bags are evenly laid on the main body of the slope, and the outer sides of the plurality of ecological bags are laid with steel rope grids, and the steel rope grids are fixed by steel rope anchors; when N is greater than At 1 o'clock, a slope platform is provided between adjacent ecological protection slopes, and a platform intercepting ditch is provided on the slope platform. This patent mainly relies on stacked ecological bags for slope protection, and uses steel rope grids to prevent the ecological bags from falling off.

The excavation of mining, quarry, water conservancy and hydropower projects and other projects will form high and steep rock slopes with large height and slope, which puts forward higher requirements for the slope ecological protection system. When the conventional slope ecological protection system is applied to high and steep rocky slopes, it is easy to find that the foreign soil matrix is difficult to attach, coupled with the falling force of the vegetation itself, it is easy to fall off as a whole; due to natural effects such as rain erosion, wind, and ultraviolet rays, The flow of foreign soil matrix is gradually lost; under the action of foreign soil matrix, growing vegetation and geological disasters, the stability of high and steep slopes is reduced, and they are easy to collapse, requiring reinforcement and stability. However, when the above-mentioned patented technology is applied to high and steep rocky slopes, the ecological bag is easy to collapse during the stacking process, and the stacking process is relatively difficult, resulting in relatively difficult construction.

Contents of the invention

A technical problem solved by the present invention is to provide an ecological protection system suitable for high and steep rock slopes and easy to construct.

The technical solution adopted to solve the above problems is: the slope ecological protection system includes a plurality of protection bodies, the protection body includes planting bags, reinforcement ropes, metal flexible nets and at least three anchor rods, the anchor rods are anchored on the slope, each anchor A vegetation bag space is formed between the poles, the reinforcement rope is connected with the anchor rod and surrounds the vegetation bag space, the metal flexible net is deployed and connected with the reinforcement rope, the vegetation bag is located in the vegetation bag space and between the side slope and the metal flexible net, and the vegetation The bag is provided with a filling port, the vegetation bag is filled with guest soil matrix, the vegetation bag is connected with the anchor rod, and the metal flexible net compresses the vegetation bag; the protective bodies are closely arranged to form an ecological protection system covering the slope.

Further, the protective body includes four anchor rods, a rectangular vegetation bag space is formed between the four anchor rods, and the shape of the vegetation bag is rectangular.

Further: the plant bag is made of non-woven fabric.

Further, the planting bag has a horizontal connection part and a vertical connection part, and the horizontal connection part and the vertical connection part separate the planting bag into multiple planting bag monomers.

Further, adjacent protective bodies share anchor rods, and the metal flexible nets of a plurality of adjacent protective bodies are integrated.

Further, the end of the anchor rod is provided with a pull ring, the reinforcement rope passes through the pull ring, and the edge of the planting bag is connected to the pull ring through a connecting ring.

Further, the guest soil matrix includes soil, seeds, fertilizers, water-retaining agents, organic matter and stabilizers.

Another technical problem solved by the present invention is to provide a construction method of the above-mentioned ecological protection system.

The technical solution adopted to solve the above problems is: the construction method of the slope ecological protection system includes the following steps:

A. Anchor the anchor rods on the slope, at least three anchor rods form a group of anchor rods, and a vegetation bag space is formed between a group of anchor rods;

B. Connect the reinforcement rope on the anchor rod, and the reinforcement rope corresponds to the vegetation bag space one by one and surrounds the corresponding vegetation bag space;

C. Planting bags are laid from top to bottom along the slope, and a planting bag is arranged in a space of a planting bag, and the planting bag is connected with the anchor rod, and a filling port is arranged on the planting bag;

D. Lay metal flexible mesh from top to bottom along the slope, the metal flexible mesh covers the planting bag, and the metal flexible mesh is connected with the reinforcement rope;

E. Fill the guest soil matrix into the planting bag through the mesh and filling port of the metal flexible net.

The beneficial effects of the present invention are as follows: 1. The protection body covers the slope, and has the effect of reinforcing the high and steep rocky slope with potential geological hazards on the slope surface. Vegetation bags can grow plants, and can carry out ecological restoration and regreening of high and steep rocky slopes. At the same time, the metal flexible mesh also has a stabilizing effect on the growing vegetation attached to the rock wall. It can be seen that the organic combination of slope reinforcement and ecological restoration in this application can play a very good role in ecological protection of the slope.

2. This application first lays and fixes the planting bags and metal flexible nets, and then fills them with foreign soil matrix. Compared with the cited patent construction of the background technology, the construction is simpler and more economical. Since there is no stacking of vegetation bags and no collapse of vegetation bags, it is more reliable in construction and use, and is more suitable for the terrain of high and steep rocky slopes.

Description of drawings:

Fig. 1 is a side view of the high and steep rock slope ecological protection system;

Fig. 2 is a side view of a single protective body;

Fig. 3 is the front view of the high and steep rocky slope ecological protection system;

Fig. 4 is the front view of the high and steep rock slope ecological protection system removing the state of the metal flexible net;

The marks in the figure are: protective body 1, anchor rod 11, metal flexible net 12, plant bag 13, plant bag unit 131, transverse connection part 132, longitudinal connection part 133, filling port 134, reinforcement rope 14, pull ring 15, Connecting ring 16, guest soil matrix 17, side slope 3, vegetation bag space 4.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figures 1 to 4: the slope ecological protection system includes a plurality of protective bodies 1, and the protective body 1 includes a vegetation bag 13, a reinforcement rope 14, a metal flexible net 12 and at least three anchor rods 11, and the anchor rods 11 are anchored on On the slope 3, a vegetation bag space 4 is formed between each anchor rod 11, the reinforcement rope 14 is connected with the anchor rod 11 and surrounds the vegetation bag space 4, the metal flexible net 12 is deployed and connected with the reinforcement rope 14, and the vegetation bag 13 is located in the vegetation bag space 4. The bag space 4 is located between the side slope 3 and the metal flexible net 12, the planting bag 13 is provided with a filling port 134, and the planting bag 13 is filled with guest soil matrix 17, and the planting bag 13 is connected with the anchor rod 11, and the metal flexible net 12 Compress the planting bag 13; each protective body 1 is closely arranged to form an ecological protection system covering the slope 3.

The protection body 1 of the present invention covers the side slope, and has the effect of reinforcing the high and steep rocky side slope with potential geological hazards on the slope surface. The vegetation bag 13 can grow plants, and can carry out ecological restoration and regreening of the high and steep rocky slope 3. Meanwhile, the metal flexible net 12 also has a stabilizing effect on the growing vegetation attached to the rock wall. It can be seen that the reinforcement of the slope 3 of the present application is organically combined with ecological restoration, which can play a very good role in ecological protection of the slope 3 .

In order to simplify the arrangement of the anchor rods 11 and facilitate construction, the protection body 1 includes four anchor rods 11, and a rectangular vegetation bag space 4 is formed between the four anchor rods 11, and the shape of the vegetation bag 13 is rectangular. The transverse spacing of the anchor rods 11 is preferably 3-4 meters, and the longitudinal spacing is preferably 1-2 meters. The anchor rods 11 are existing anchor rods, which may be rigid anchor rods, preferably flexible anchor rods. The distance between the four sides of the planting bag 13 and the reinforcement rope 14 is preferably 0.2-0.3 meters, so as to reserve the vegetation crown growth radiation area.

The planting bag 13 is preferably made of non-woven fabric. Non-woven fabric is a kind of non-woven fabric, which directly uses high polymer chips such as polypropylene or polyester fibers, short fibers or filaments to form soft, breathable and planar structures through various web forming methods and consolidation techniques. new fiber products. The plant growth bag 13 is made of non-woven fabric and has the advantages of being able to permeate water and retain soil, anti-ultraviolet aging, and good material strength and flexibility.

If the vegetation bag 13 has only one accommodation space for the guest soil matrix 17, then the space is relatively large, and the guest soil matrix is easy to concentrate in the plant bag 13 bottom. In order to make the alien soil matrix 17 evenly distributed in the planting bag 13, the planting bag 13 has a transverse connecting portion 132 and a longitudinal connecting portion 133, and the transverse connecting portion 132 and the longitudinal connecting portion 133 separate the planting bag 13 into a plurality of planting bag monomers 131. In order to be able to fill the guest soil matrix 17 into the planting bag unit 131 , each planting bag unit 131 should be provided with a filling port 134 .

Adjacent protective bodies 1 can share anchor rods 11 . The metal flexible nets 12 of a plurality of adjacent protective bodies 1 are integrated, that is, a plurality of protective bodies 1 can share a large metal flexible net 12 .

The concrete mode that the anchor rod 11 is connected with the reinforcing rope 14 and the planting bag 13 is preferably as follows: the anchor rod 11 end is provided with a draw ring 15, the reinforcing rope 14 passes through the draw ring 15, and the edge of the plant growing bag 13 passes through the connecting ring 16 and the draw ring 15 connect. The reinforcement rope 14 can be only one, and can also be divided into several sections, for example, the reinforcement rope 14 includes a transverse reinforcement rope and a longitudinal reinforcement rope. The metal flexible mesh 12 can be connected with the reinforcement rope 14 by using sewing ropes. The reinforcement rope 14 may be a steel wire rope.

The guest soil matrix 17 may include soil, seeds, fertilizers, water-retaining agents, organic matter and stabilizers, and the components should be evenly mixed. Seeds should be selected from plant seeds suitable for local growth.

The construction method of the slope ecological protection system includes the following steps: A. Anchoring anchor rods 11 on the slope 3, at least three anchor rods 11 form a group of anchor rods 11, and a vegetation bag space 4 is formed between a group of anchor rods; B. 1. Connect the reinforcement rope 14 on the anchor rod 11, the reinforcement rope 14 corresponds to the vegetation bag space 4 one by one and surrounds the corresponding vegetation bag space 4; C, lay the vegetation bag 13 from top to bottom along the side slope 3, and a vegetation bag space 4 A planting bag 13 is arranged inside, and the planting bag 13 is connected with the anchor rod 11, and a filling port 134 is arranged on the planting bag 13; D, a metal flexible net 12 is laid from top to bottom along the side slope 3, and the metal flexible net 12 covers the planting bag 13, The metal flexible net 12 is connected with the reinforcing rope 14; E, filling the guest soil matrix 17 in the planting bag 13 through the mesh of the metal flexible net 12 and the filling port 134.

In the present application, the planting bag 13 and the metal flexible net 12 are laid and fixed first, and then the foreign soil matrix 17 is filled. Compared with the cited patent construction of the background technology, the construction is simpler and more economical. Since there is no stacking of vegetation bags and no collapse of vegetation bags, it is more reliable in construction and use, and is more suitable for the terrain of high and steep rocky slopes.

Before step A, the floating soil and pumice that threaten the construction safety in the slope protection area should be removed, and the local terrain (local accumulations and protrusions, etc.) that are not conducive to construction and installation and affect the normal function of the system after installation should be properly trimmed. In step A, the position of the bolt hole can be determined by setting out the line. According to the terrain conditions, the hole spacing can be adjusted by 0.3m. Within the allowable adjustment range of the hole spacing, the bolt hole position should be selected as natural Dimples. Drill the bolt hole according to the design depth and clean the hole, the hole diameter should not be less than Under the premise of ensuring that the angle between the anchor rod 11 and the horizontal plane is not less than 15°, it should be as perpendicular to the side slope 3 as possible. After the bolt holes are drilled, slurry and insert the bolt 11. Cement mortar or cement slurry with a strength grade not lower than M20 should be used to ensure that the slurry is full, and the grouting body should be cured for no less than three days before the next process.

In step B, existing rope clips can be used to fix the reinforcement rope 14 . In step C, if necessary, a temporary short anchor rod can also be added to fix the planting bag 13 . In step E, when filling the guest soil matrix 17, the metal flexible mesh 12 can be pulled up to prevent the metal flexible mesh 12 from pressing the planting bag 13 to affect the filling, and a funnel can be used for filling. After filling, the metal flexible net 12 rebounds and can play the role of compressing the planting bag 13 .

Claims (8)

1. High steep rock matter side slope ecological protection system, its characterized in that: the protective device comprises a plurality of protective bodies (1), wherein each protective body (1) comprises a plant growing bag (13), a reinforcing rope (14), a metal flexible net (12) and at least three anchor rods (11), the anchor rods (11) are anchored on a side slope (3), plant growing bag spaces (4) are formed among the anchor rods (11), the reinforcing ropes (14) are connected with the anchor rods (11) and surround the plant growing bag spaces (4), the metal flexible nets (12) are unfolded and connected with the reinforcing ropes (14), the plant growing bags (13) are located in the plant growing bag spaces (4) and located between the side slope (3) and the metal flexible nets (12), filling ports (134) are formed in the plant growing bags (13), foreign soil matrixes (17) are filled in the plant growing bags (13), the plant growing bags (13) are connected with the anchor rods (11), and the plant growing bags (13) are compressed by the metal flexible nets (12); the protection bodies (1) are closely arranged to form an ecological protection system covering the side slope (3).

2. The high steep rocky slope ecological protection system according to claim 1, wherein: the protection body (1) comprises four anchor rods (11), rectangular plant growth bag spaces (4) are formed among the four anchor rods (11), and the plant growth bags (13) are rectangular.

3. The high steep rocky slope ecological protection system according to claim 2, wherein: the plant growth bag (13) is made of non-woven fabrics.

4. The high steep rock slope ecological protection system of claim 3, characterized in that: the plant growth bag (13) is provided with a transverse connecting part (132) and a longitudinal connecting part (133), and the transverse connecting part (132) and the longitudinal connecting part (133) divide the plant growth bag (13) into a plurality of plant growth bag single bodies (131).

5. The high steep rocky slope ecological protection system according to claim 1, wherein: the adjacent protection bodies (1) share the anchor rod (11), and the metal flexible nets (12) of the plurality of adjacent protection bodies (1) are made into a whole.

6. The high steep rocky slope ecological protection system according to claim 1, wherein: the end part of the anchor rod (11) is provided with a pull ring (15), the reinforcing rope (14) penetrates through the pull ring (15), and the edge of the plant growth bag (13) is connected with the pull ring (15) through a connecting ring (16).

7. The high steep rocky slope ecological protection system according to claim 1, wherein: the soil dressing matrix (17) comprises soil, seeds, fertilizer, water-retaining agent, organic matter and stabilizer.

8. The construction method of the high and steep rock slope ecological protection system is characterized by comprising the following steps: the method comprises the following steps:

A. anchoring bolts (11) on the side slope (3), wherein at least three anchoring bolts (11) form a group of anchoring bolts (11), and a plant growth bag space (4) is formed between the group of anchoring bolts;

B. the anchor rods (11) are connected with reinforcing ropes (14), and the reinforcing ropes (14) correspond to the plant biological bag spaces (4) one by one and surround the corresponding plant biological bag spaces (4);

C. plant biological bags (13) are paved from top to bottom along the side slope (3), one plant biological bag space (4) is internally provided with one plant biological bag (13), the plant biological bag (13) is connected with the anchor rod (11), and the plant biological bag (13) is provided with a filling port (134);

D. a metal flexible net (12) is laid from top to bottom along the side slope (3), the plant growth bag (13) is covered by the metal flexible net (12), and the metal flexible net (12) is connected with a reinforcing rope (14);

E. the plant growing bag (13) is filled with a foreign soil matrix (17) through the mesh holes of the metal flexible net (12) and the filling port (134).