Computational Analysis on the Instability Mechanism of Liujiatai Landslide

The stability of unsaturated soil slope will decrease gradually with the decrease of matric suction. This paper develops the relevant computational software of the transfer coefficient method in the condition of taking matric suction into consideration, makes an analysis on stability of Liujiatai sl...

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Bibliographic Details
Published in2015 International Conference on Intelligent Transportation, Big Data and Smart City pp. 220 - 224
Main Authors Chen, Yaqin, Liu, Junding, Zhang, Yuan, Li, Rongjian
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.12.2015
Subjects
Finite element analysis
Mathematical model
Matric Suction
Safety
Sarma Method
Slope
Soil
Stability analysis
Stress
Terrain factors
Transfer Coefficient Method
Unsaturated Soil
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Summary:The stability of unsaturated soil slope will decrease gradually with the decrease of matric suction. This paper develops the relevant computational software of the transfer coefficient method in the condition of taking matric suction into consideration, makes an analysis on stability of Liujiatai slope, and then makes a comparative study with the computational results based on Sarma method. It is proved that, the transfer coefficient method and the Sarma method have the basically same computational results during the matric suction's weakening, and the safety factor of the unsaturated soil slope gradually decreased. However, the transfer coefficient method has obvious limitations in the analysis of local sliding slope, while the Sarma method can be used in the slope stability problems in any shape of slip surface, which can determine the safety factor of the slope.
DOI:10.1109/ICITBS.2015.61