Self-pressurization protecting device and method thereof for keeping expansive soil cut slope stable

Abstract

The invention discloses a self-pressurization protecting device and method thereof for keeping an expansive soil cut slope stable. The device comprises an anchor rod, a first circular plate, a second circular plate and a high-strength spring, the anchor rod is sleeved with the first circular plate and the second circular rod, the high-strength spring is arranged between the first circular plate and the second circular plate, a nut is arranged on the first circular plate, and the anchor rod is fixedly sleeved with the nut. By means of the self-pressurization device, the problem that the expansive soil cut slope tends to be unstable under the action of atmosphere is solved, the device is applicable to various types of expansive soil, meanwhile, the arrangement form is simple, the construction operation is simple and convenient, the device can be used for provisional protection as well, and the construction application prospect of the device is broad. The action mechanism of the protecting device conforms to the working rules of the expansive soil cut slope, and engineering characteristics of the expansive soil are taken into full consideration in the protection design; the construction efficiency is high, the arrangement is flexible, and the device is applicable to various soil layers; the device can be made of metal materials or bamboo or wood according to the protection time length, and the effect to the environment is little.

Description

technical field [0001] The invention relates to construction technology in the field of civil engineering, and is mainly used for slope engineering design and construction, in particular to a self-pressurizing protective device and method for maintaining the stability of expansive soil cutting slopes. Background technique [0002] With the development of social economy, the operation or construction of a large number of roads, railways and water conservancy projects in expansive soil areas, as well as the construction process of urbanization in expansive soil areas, have created a large number of expansive soil cutting slopes. The formation process of expansive soil cutting slope is the result of human transformation of nature, which often destroys the original stable state of natural materials and lays hidden dangers for slope catastrophe. Under the influence of the atmosphere, as the number and magnitude of the dry-wet cycle increase due to evaporation and rainfall, the re...

AI Technical Summary

Problems solved by technology

Under the influence of the atmosphere, as the number and magnitude of the dry-wet cycle increase due to evaporation and rainfall, the repeated expansion and contraction of the expansive soil causes criss-cross cracks in the soil, the soil becomes loose, and its strength decreases. In addition, weathering further destroys the The integrity of the soil mass makes the expansive soil cutting slope tend to be unstable, which in turn leads to failure

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