CN-224227819-U - Side slope structure for preventing and controlling water and soil loss in vegetation recovery initial stage

CN224227819UCN 224227819 UCN224227819 UCN 224227819UCN-224227819-U

Abstract

The utility model belongs to the technical field of side slope treatment, and particularly discloses a side slope structure for preventing and controlling water and soil loss in an initial vegetation recovery stage. The side slope structure comprises a side slope, a drainage ditch, a geomembrane, a percolation wall and a plant-growing blanket, wherein the drainage ditch is transversely arranged at the downstream of the side slope, the geomembrane is laid in the drainage ditch, the percolation wall is transversely extended and arranged between the slope foot of the side slope and the drainage ditch, the plant-growing blanket is made of plant fibers and internally provided with grass seeds, and the plant-growing blanket is fixed on the slope surface of the side slope through anchoring nails. The utility model adopts the vegetation blanket to lay the slope, not only can prevent and treat the soil erosion at the initial stage of the slope, but also can prevent and treat the soil erosion for a long time after the grass seeds grow up in the slope, and the infiltration wall at the downstream of the slope can block large-particle sediment generated in the natural recovery period so as to reduce the accumulation and blockage of the drainage ditch, and the drainage ditch is laid with the geomembrane to drain and guide the slope to come water, thereby having the characteristics of simple structure, low cost, rapid and flexible construction and good prevention and treatment effect.

Inventors

YUAN HAIHONG
ZHOU HONGFEN
WANG YUEBING
SHEN YUMING
QIU XUEYAO
ZHANG TAO
LIU JIAWEN
LUO XIANG
ZHANG SHIYAN
CHEN XIAO
ZENG SHAOBO
Cao Chunxian
TONG ZHILONG

Assignees

昆明有色冶金设计研究院股份公司

Dates

Publication Date: 20260512
Application Date: 20250508

Claims (9)

1. The side slope structure for preventing and controlling water and soil loss at the initial stage of vegetation recovery comprises a side slope (1), a drainage ditch (2) and a geomembrane (3), wherein the drainage ditch (2) is transversely arranged at the downstream of the side slope (1), and the geomembrane (3) is laid in the drainage ditch (2), and the side slope structure is characterized by further comprising a percolation wall (4) and a plant-growing blanket (5), wherein the percolation wall (4) is transversely extended and arranged between a slope foot of the side slope (1) and the drainage ditch (2), the plant-growing blanket (5) is made of plant fibers and is internally provided with grass seeds, and the plant-growing blanket (5) is fixed on the slope surface of the side slope (1) through anchor nails (6).
2. The side slope structure for preventing and controlling water and soil loss at the initial stage of vegetation restoration according to claim 1, wherein the original soil is compacted along a preset drainage ditch (2) at the downstream of the side slope (1) to form compacted soil (7), a ditch section is dug on the compacted soil (7) to form the drainage ditch (2), and the geomembrane (3) is laid in the ditch section of the drainage ditch (2).
3. The side slope structure for preventing and controlling water and soil loss in the initial stage of vegetation restoration according to claim 2, wherein the ditch section of the drainage ditch (2) is a trapezoid, a semicircle, a rectangle or an arc section.
4. The side slope structure for preventing and controlling water and soil loss at the initial stage of vegetation recovery according to claim 1, wherein the upper part of the vegetation blanket (5) extends to the top of the side slope (1) and the lower part extends to the corner of the percolation wall (4), and the vegetation blanket (5) is fixed on the slope surface and the top of the side slope (1) through a plurality of anchoring nails (6) arranged at intervals.
5. The side slope structure for preventing and controlling water and soil loss at the initial stage of vegetation restoration according to claim 4, wherein the anchoring nails (6) are wood nails, bamboo nails or metal nails.
6. The side slope structure for preventing and controlling water and soil loss at the early stage of vegetation restoration according to any one of claims 1 to 5, wherein the percolation wall (4) is a dry masonry structure or a concrete structure with water guide holes, and the cross section of the percolation wall (4) is rectangular, trapezoidal or parabolic.
7. The side slope structure for preventing and controlling water and soil loss in the initial stage of vegetation restoration according to claim 6, wherein the drainage ditch (2) is dug with a ditch on two sides of the section, and two sides of the geomembrane (3) laid in the drainage ditch (2) extend into the ditch and are compacted by using gravel soil (8).
8. The side slope structure for preventing and controlling water and soil loss in the early stage of vegetation recovery according to claim 7, wherein the ditch on one side of the drainage ditch (2) close to the percolation wall (4) extends to the lower part of the percolation wall (4), and the percolation wall (4) is arranged at the top end of gravelly soil (8) with the geomembrane (3) compacted on one side of the side slope (1).
9. The side slope structure for preventing and controlling water and soil loss in the early stage of vegetation recovery according to claim 7, wherein the strip groove is a step groove with an inverted L-shaped section, and the side edge of the geomembrane (3) is laid on the step surface of the step groove.

Description

Side slope structure for preventing and controlling water and soil loss in vegetation recovery initial stage Technical Field The utility model belongs to the technical field of side slope treatment, and particularly relates to a side slope structure for preventing and treating water and soil loss in an early vegetation recovery stage, which has the advantages of simple structure, low manufacturing cost, rapid and flexible construction and good prevention and treatment effect. Background Temporary slopes formed by excavation of soil and stone sides and stacking of soil and stone sides, and permanent storage yard slopes such as a soil discharge yard, a waste stone yard and a gangue yard, wherein before vegetation is restored (namely, the initial stage of vegetation restoration), if the temporary slopes are not well treated, soil erosion is obvious, serious water and soil loss is caused, soil fertility is damaged, facilities such as drainage ditches and channels are easily silted up, and disasters such as landslide and collapse are even induced, so that water and soil conservation and prevention are particularly needed in the initial stage of vegetation restoration of the side slopes. At present, the measures for preventing and controlling the water and soil conservation of the side slope mainly comprise grass planting protection, soil engineering net pad protection, grass filling mixed protection, climbing plant protection, slurry rubble protection, bamboo pile protection, steel wire net gabion protection and the like. Although the prevention measures can effectively reduce the water and soil loss of the side slope to a certain extent, thereby protecting the ecological environment and improving the soil fertility, the problems of slow construction, slow effect, insignificant treatment effect of the early water and soil loss and the like exist, and part of prevention measures also have the problems of high cost, large maintenance workload and difficult recovery of later vegetation. Although the measures can be combined to make best use of the shortages according to different projects and different application scenes, the construction process is complicated, so that the construction period is further delayed and the construction cost is further increased. In the prior art, in order to solve the defects of the prevention measures, an ecological bag slope protection technology is adopted, ecological bags filled with mixed materials such as soil, fertilizer and grass seeds are stacked on a side slope according to a certain rule to form a slope protection structure, the construction is fast, the manufacturing cost is low, the prevention effect is obvious, the ecological bags have the characteristic of permeable and impermeable soil, the root systems penetrate through the ecological bags to interweave with each other along with the growth of plants, the ecological bags and soil bodies are tightly combined, the stability of the side slope is enhanced, the soil loss is reduced, but loose and falling easily occur between piled or simply connected ecological bags with larger water flow velocity and larger flow rate, the protection effect is reduced, the soil washed down by the water flow on the side slope is easy to run off, and facilities such as drainage ditches and channels are easy to be silted up. In addition, the three-dimensional net structure is paved on the slope, then soil is filled in the net, and then grass seeds or plants are sown to form a three-dimensional vegetation net slope protection technology with a root system and a net pad combined. Therefore, in order to reduce the water and soil loss of the side slope, reduce the cost of the side slope water and soil conservation prevention measures, improve the effect of the side slope water and soil conservation prevention measures, and research on a side slope structure which can be obtained locally as much as possible, is quick and flexible in construction and has good prevention effect is very important. Disclosure of utility model In order to solve the problems in the background art, the utility model provides a side slope structure for preventing and controlling water and soil loss in the early stage of vegetation recovery, which has the advantages of simple structure, low manufacturing cost, rapid and flexible construction and good prevention and control effect. The side slope structure for preventing and controlling water and soil loss in the initial stage of vegetation recovery is realized by comprising a side slope, a drainage ditch and a geomembrane, wherein the drainage ditch is transversely arranged at the downstream of the side slope, the geomembrane is laid in the drainage ditch, the side slope structure also comprises a percolation wall and a plant-growing blanket, the percolation wall is transversely arranged between the slope feet of the side slope and the drainage ditch in an extending mode, the plant-growing blanket is made of plant fibers a