Method for treating shallow disease of expansive soil slope

Abstract

The invention discloses a method for treating a shallow disease of an expansive soil slope. The method comprises the following steps of: 1, excavating the slope into different levels; 2, constructing a protection foundation by using cement mortar: uniformly painting a cement mortar layer on a slope base of each level of the excavated multi-level stepped slope to form a slope base protection foundation; 3, treating the slope level by level: treating the multi-level slope of the multi-level stepped slope level by level from top to bottom or from bottom to top, wherein for any level of the slope Ai, the treatment process comprises the following steps of: laying and fixing waste tires; overlaying a mixed material; covering geogrids; and paving non-woven fabrics; and 4, post-stage curing: curing the mixed material according to a conventional herbaceous plant curing method. The method for treating the shallow disease of the expansive soil slope has the advantages of novel and reasonable design, simple and practical operation, low cost, good treatment effect and capacity of effectively solving the problem of shallow diseases of the expansive soil slope.

Description

technical field [0001] The invention belongs to the technical field of expansive soil slope treatment, and in particular relates to a method for treating shallow-layer diseases of expansive soil slopes. Background technique [0002] Expansive soils are mostly distributed in arid and semi-arid areas. So far, expansive soils have been found in more than 40 countries, and more than 20 provinces in my country also have expansive soils. The mineral components of expansive soil are mainly montmorillonite and illite, which are strongly hydrophilic. Due to their significant expansion and contraction characteristics, they will bring great economic losses to engineering construction. After raining, a layer of shallow slope slippery disease with a thickness of less than 1m often appears on the surface of expansive soil slopes. Therefore, the stability of expansive soil slopes has always been a difficult problem for people. Because expansive soil has some different engineering characte...

AI Technical Summary

Problems solved by technology

However, the cost of this method is higher, and the construction technology requirements are also higher.

[0007] Fourth, water-proof sealing and seepage ditch drainage method: water-proof sealing is to use geotechnical waterproof cloth, lime and clay mixture and other materials to seal the slope surface water-proof, prevent the influence of climate dry-wet cycle on the water content of expansive soil, and achieve stability The purpose of the slope, but the construction process is more complicated

[0010] To sum up, the above-mentioned protection methods for expansive soil slope slopes currently used have defects and deficiencies such as large environmental impact, high cost, complicated construction, serious vegetation damage, and poor protection effect to varying degrees.

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