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Expansion of the mechanical response of the excavation of soil cutting and Treatment Technique

Author: HuangJianHua
Tutor: FangLiGang；ChenFeng
School: Central South University
Course: Architecture and Civil Engineering
Keywords: Expansive soils Cut Landslide FLAC Treatment Measures
CLC: U416.13
Type: Master's thesis
Year: 2011
Downloads: 44
Quote: 0
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Abstract


Expansive soil is a special soil , overconsolidated , fissured and swelling and shrinkage characteristics of expansive soil cutting landslide problem has been one of the problems in the highway construction . Expansive soil cut early in the excavation is generally more stable , no handling experienced wet and dry cycle after slope instability and failure often occurs , to master the process and mechanism of landslide important guiding significance for the design of the slope reinforcement measures . (Ning ) south of the papers a hundred ( color ) Freeway expansion soil slope as the research object , based on the study of in situ tests and laboratory tests on expansive soil sections , master of the South, road expansion causes of soil types and basic physical and mechanical parameters ; view of the conventional limit equilibrium method can only analyze the overall stability of the slope using finite difference software FLAC expansive soil cutting excavation process stress, strain , displacement variation explore slope with open digging and progressive failure of the law , and also study the impact of the wet and dry cycle of expansive soil cutting analysis of wet and dry cycle posterior cutting instability , expansive soil slope provides a theoretical basis for governance ; south highway 100 part cutting due to excavation did not take timely precautions after experiencing wet and dry cycles that occur after a lot of landslide hazard , cutting landslide disaster prevention measures dynamic full line cutting slope , take the slope protection , surface water protection retaining structures and other measures combined to treat expansive soil slope , and received good results .

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CLC: > Transportation > Road transport > Road works > Roadbed, pavement engineering > Subgrade > Cut
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