Analysis of slopestability under the rainfall infiltration

Author

Yang, Cuina ; Ma, Yun ; Jia, Yanhui

Author_Institution

Dept. of Civil Eng., Xinxiang Univ., Xinxiang, China

fYear

2012

fDate

21-23 April 2012

Firstpage

156

Lastpage

159

Abstract

The process of water distribution in slope is researched with the SWMS_2D model. The strength reduction of FLAC^2D, which is based on unsaturated soil shear strength theory, is used to analysis slope stability. An example of a slope of road is simulated. The results showed that for a given rainfall, the soil moisture content and the pore water pressure increase with the decrease in the suction pressure of the unsaturated soils. The results also showed that the slope safety factor decrease. In the simulation carried out, the safety factor dropped to the minimum of 1.09 in 25 hours after rainfall.

Keywords

geotechnical engineering; mechanical stability; porosity; rain; safety; shear strength; FLAC^2D; SWMS_2D model; moisture content; pore water pressure; rainfall infiltration; slope safety factor; slope stability analysis; unsaturated soil shear strength theory; water distribution process; Equations; Mathematical model; Numerical stability; Rocks; Safety; Soil; Stability analysis; SWMS_2D model; rainfall infiltration; slope stability; strength reduction FLAC^2D;

fLanguage

English

Publisher

ieee

Conference_Titel

Consumer Electronics, Communications and Networks (CECNet), 2012 2nd International Conference on

Conference_Location

Yichang

Print_ISBN

978-1-4577-1414-6

Type

conf

DOI

10.1109/CECNet.2012.6201830

Filename

6201830