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Study on Protection Type of Loess Subgrade Slope in Zhengzhou-Xi’an Passenger Line

Author: WangQiang
Tutor: ZhangJunYun
School: Southwest Jiaotong University
Course: Geotechnical Engineering
Keywords: loess slope stability protection type bio-slope-engineering
CLC: U213.1
Type: Master's thesis
Year: 2011
Downloads: 38
Quote: 0
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Abstract


The protection of the slope is an important measure to prevent diseases of the slop, guarantee the stability of slop, improve the environment landscape, and protect the ecological balance. At the present, in the form of loess subgrade slope protection has not too many studys based on the ecological protection. So the reasonable to design slope type, according to the hydrogeology conditions and slope type to select the right type of vegetation for the stability of the slope and ecosystem restoration is very important.At first, this thesis detailed investigations He Nan, Shan Xi and Shan Xi province as well as other loess highway areas, covering the protection of the slope design methods, Construction technology, applying effects and other technical data. According to the information, the loess slope disease can be divided into three types: Erosion damage at the face of the slop by rain, landslides of slop instability, the damage of erosion-losing stability.Summary the cosplay and difficulty of the protective of the loess slop.This thesis in ZhengZhou to Xi’An passenger line detailed on the basis of geological exploration, Select two representative types of the slope to stability analysis, subgrade and protection type design. According to the research of loess slope plant grow, from beneficial for plant growth and quickly to provide protection, suggest the slope ratio of the loess slopes not steeplier than 1:1; Then contrast the results of the numerical analysis software, finally get the optimal subgrade of loess slope section.According to the destruction mode research, cosplay protection, and stability analysis of the loess slope, sum up the choose of the protection of the Mian Ling of Zhen Zhou to Xi’An passenger line, and according to field trial, sum up the plant proportion of loess slop of the Mian Ling of Zhen Zhou to Xi’An passenger line.

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CLC: > Transportation > Rail transport > Railway Line Project > Line constructed > Subgrade
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