Analysis of Shear Strength Parameters on Soft Clay Slope Stability at Short Term

Jing Fang Hou; Yong Hua Cao; Shu Wang Yan

doi:10.4028/www.scientific.net/AMM.170-173.1306

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 170-173Analysis of Shear Strength Parameters on Soft Clay...

Analysis of Shear Strength Parameters on Soft Clay Slope Stability at Short Term

Abstract:

The slope stability is an important problem for the slope building on the soft clay ground. At present, the vane shear strength is common used to calculate the factor of slope stability at short term. In fact, a lot of cases show that the vane shear strength underestimates the real shear strength of the sliding surface. Therefore, based on Mohr-Coulomb theory, and using the linear relation between the vane shear strength and the depth, a method of converting in-situ vane shear strength into undrained shear strength parameter is presented. Two shear strength parameters c and φ are from statistical regression analysis. The anisotropy, the lateral compression coefficient and the average consolidation degree of the soft clay are considered. The two shear strength parameters are used to calculate the short term safety factor of the slope stability. The safety factor is greater than 1.0 for steady slope.

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Periodical:

Applied Mechanics and Materials (Volumes 170-173)

Pages:

1306-1309

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.170-173.1306

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Online since:

May 2012

Authors:

Jing Fang Hou, Yong Hua Cao, Shu Wang Yan

Keywords:

Regression Analysis, Shear Strength Parameters, Slope Stability, Soft Clay, Vane Shear Strength

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