Heavy layer flaking diseases method in loess slope

Abstract

The invention discloses a method for treating stripping diseases of medium bed in loess slopes. The method comprises the following steps: slopes are renovated; a layer of nutrient wheat straw mud which is formed by evenly stirring of a mixed material and water according to the volume rate of 2.5 : 3.5 to 1 is painted on the renovated slope; the mixed material is evenly mixed by wheat straw stalks, clay, mixed fertilizer and grass seeds according to the volume rate of 25-35:58-62:0.5-1.5:8.5-9.5; the mixed fertilizer is a chemical fertilizer or a fertilizer which is evenly mixed by the chemical fertilizer and farmyard manure according to the proportion of 15-25:5-15; the chemical contains 10 wt% to 15 wt% of nitrogen and 15 wt% to 20 wt% of potassium phosphate; a metal net is covered on the painted nutrient wheat straw mud layer; the covered metal net is laid with a layer of non-woven fabric; and maintenance is carried out to the nutrient wheat straw mud. The invention has simple and easy operation, low cost and good treating effect and can effectively solve the problem of stripping diseases of medium bed in loess slopes.

Description

technical field [0001] The invention relates to the technical field of slope engineering, in particular to a method for treating the spalling disease of medium-thick layers of loess slopes. Background technique [0002] In reality, the spalling diseases of loess slopes can be divided into three categories according to the thickness of spalled layers: surface crust peeling, middle layer spalling and thick layer slumping spalling. [0003] Among them, the main characteristics of the exfoliation of the surface crust are: the thickness is generally between 3-5cm, and the exfoliation crust is in the form of flakes, nearly round, and trapezoidal, which often occurs in old loess. Caused by erosion and other reasons. [0004] The main characteristics of the middle layer exfoliation are: the thickness of the middle layer exfoliation is 10-40cm, the appearance of the exfoliation is generally arc-shaped or rectangular, and the scale is generally (1.0-1.5m)×(2.0-4.0m); Wedge-shaped, t...

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Problems solved by technology

However, a survey in July 2008 found that because the reinforcement depth of plant roots sprayed with foreign soil is best in the range of 0.2-0.3m, new spalling has occurred

[0009] 3. Geocell, this method has a better effect on treating the peeling of the surface and middle layers of loess slopes, but the effect on thick layer peeling is not ideal, and the cost is higher

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