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Improvement of pseudo-static method for slope stability analysis

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Abstract

In this paper, two drawbacks of the traditional pseudo-static method (vertical slice method) in the slope stability evaluation have been studied. First, the sliding mass is divided into vertical slices according to this method, which is irrational to some extent in the seismic design of slope. Second, only peak ground acceleration (PGA) is considered, and the effects of shaking frequency and duration on slope stability are neglected. And then, based on the theory of elastic wave and the summarized geological model, this paper put forwards an improved method of pseudo-method by using the theory of elastic wave and Hilbert-Huang transform. The improved pseudostatic method gives reasonable considerations to the time-frequency effects of seismic wave and its rationality has been verified by the shaking table test. This method can evaluate the safety of a slope, the happening time and the scale of landslides. At the same time, this method also can improve the high accuracy of the evaluation of the safety of the slope.

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Authors and Affiliations

  1. School of Civil Engineering, Key Laboratory of Transportation Tunnel Engineering, Ministry of Education, Southwest Jiaotong University, Chengdu, 610031, China

    Chang-wei Yang, Jian-jing Zhang, Xiao Fu, Chuan-bin Zhu & Jun-wei Bi

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  1. Chang-wei Yang
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  2. Jian-jing Zhang
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  3. Xiao Fu
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  4. Chuan-bin Zhu
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  5. Jun-wei Bi
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Correspondence to Jian-jing Zhang.

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Yang, Cw., Zhang, Jj., Fu, X. et al. Improvement of pseudo-static method for slope stability analysis. J. Mt. Sci. 11, 625–633 (2014). https://doi.org/10.1007/s11629-013-2756-8

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  • DOI: https://doi.org/10.1007/s11629-013-2756-8

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