A parametric study of the stability of unsaturated soil slope under rainfall condition

碩士 === 國立臺北科技大學 === 土木與防災研究所 === 102 === Abundant rainfalls often resulted in the rapid rising of water table, and many shallow landslides were encountered during or after these abundant rainfall. In this study, the solid mechanics equations and seepage partial differential equation that representin...

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Bibliographic Details
Main Authors: Bo-yuan Huang, 黃柏源
Other Authors: 魏敏樺
Format: Others
Language:zh-TW
Published: 2014
Online Access:http://ndltd.ncl.edu.tw/handle/byy442
Description
Summary:碩士 === 國立臺北科技大學 === 土木與防災研究所 === 102 === Abundant rainfalls often resulted in the rapid rising of water table, and many shallow landslides were encountered during or after these abundant rainfall. In this study, the solid mechanics equations and seepage partial differential equation that representing the transient flow of water in unsaturated soil medium have been solved using a numerical tool. The study used shear strength reduction technique and coupled hydro-mechanical analysis to examine stability of model slope. The numerical result was compared in term of pore-water pressure, effective stress, displacement and factor of safety. The effects of slope height, slope angle, and elastic modulus on the stability patterns were also examined.