Slope greening method

Abstract

The invention provides a side slope greening method. The side slope greening method comprises the steps of side slope trimming, net laying operation, preparation, matrix spray-seeding, green binder spraying, preparation and seed sublayer spray-seeding. According to the greening method, the thickness of the matrix is small, the using amount is small, the local annual rainfall is 850-950 mm, the gradient of the soft rock slope is 1: (0.5-0.6), and the thickness of the spray-seeding matrix is 55-60 mm; the combination capacity of the substrate and the side slope is high, the rainwater washing resistance is high, the 30-day rainwater washing resistance strength is 150-160 mm / h, and the 180-day rainwater washing resistance strength is 230-240 mm / h.

Description

technical field [0001] The invention relates to a slope greening method, which belongs to the technical field of slope regreening. Background technique [0002] With the rapid development of my country's economic construction, human activities such as large-scale road construction, quarrying, and urban construction have produced a large number of exposed slopes, which seriously damaged the ecological environment of the area where the original natural mountain was located, and greatly affected the appearance. [0003] At present, various spraying methods are the main means of slope regreening in my country. According to engineering experience, for slopes with a slope greater than 1:1.0, the spraying substrate is prone to loss, resulting in poor repair effect, and the substrate in areas with large annual rainfall is prone to loss. Being washed away, causing the substrate to peel off and disintegrate. At present, only aggregate spraying and vegetation concrete spraying can achie...

AI Technical Summary

Problems solved by technology

[0002] With the rapid development of my country's economic construction, human activities such as large-scale road construction, quarrying, and urban construction have produced a large number of exposed slopes, which seriously damaged the ecological environment of the area where the original natural mountain was located, and greatly affected the appearance.

[0003] At present, various spraying methods are the main means of slope regreening in my country. According to engineering experience, for slopes with a slope greater than 1:1.0, the spraying substrate is prone to loss, resulting in poor repair effect, and the substrate in areas with large annual rainfall is prone to loss. Being washed away, causing the substrate to peel off and disintegrate. At present, only aggregate spraying and vegetation concrete spraying can achieve good results on slopes greater than 1:1.0 and less than 1:0.5, but aggregate spraying requires agglomeration reactions. The spraying matrix with a stable structure is formed, the process is complex, and the technical requirements are strict. The vegetation concrete spraying process is relatively simple, and the effect of anti-loss is better. It is currently the main spraying method, but its hardness is high, which is not conducive to Root development of woody plants, mainly herbaceous plants

[0004] CN107963838A discloses an ecological spraying anchor slope protection method. Firstly, the pore concrete is sprayed onto the slope surface, and then after the concrete strength is improved, the alkaline modified nutrient soil is injected into the concrete pores, and finally a layer of cement-enhanced alkaline modified soil is sprayed on the surface. Composite planting soil and seeds form the greening surface layer, which can make shrubs grow in the slope substrate with large slopes, but the amount of substrate used for spraying is large and the thickness is large, resulting in increased costs, and after the concrete is cured, improved nutrients are injected into the pores The soil process is complicated, the amount of concrete is large, and the construction cannot be completed at one time, and the construction period is long

[0006] (1) During spraying construction on slopes with large slopes and heavy rainfall, the thickness of the sprayed substrate is relatively large, the amount of substrate used is large, and the cost is high;

[0007] (2) When spraying on slopes with large slopes and heavy rainfall, the bonding ability between the cured matrix and the slope is poor, and it is not resistant to rain erosion;

[0008] (3) When spraying on slopes with large slopes and heavy rainfall, the strength of the matrix after curing is low