Effects of geometries on three-dimensional slope stability

Yingbin Zhang; Guangqi Chen; Lu Zheng; Yange Li; Xiaoying Zhuang

doi:10.1139/cgj-2012-0279

Effects of geometries on three-dimensional slope stability

Yingbin Zhang, Guangqi Chen, Lu Zheng, Yange Li, Xiaoying Zhuang

Division for Experimental Natural Science

Research output: Contribution to journal › Article › peer-review

80 Citations (Scopus)

Abstract

This paper analyzes the effects of complex geometries on three-dimensional (3D) slope stability using an elastoplastic finite difference method (FDM) with a strength reduction technique. A series of special 3D slopes with various geometric configurations, including curving slope surface, turning corners, turning arcs, and turning forms, is presented in terms of factor of safety, shear slip surface, and deformed mesh. More than 180 cases with various geometries for different slope gradient (90°, 45°, and 26.57°) under different boundary conditions (smooth-smooth, rough-smooth, and rough-rough) are calculated and discussed in detail. Many interesting results are obtained and some of them appear to be surprising. These results can be used directly to offer suggestions for landslide hazard preparedness or safe and economical design of infrastructures, e.g., excavations, embankments, and so on.

Original language	English
Pages (from-to)	233-249
Number of pages	17
Journal	Canadian Geotechnical Journal
Volume	50
Issue number	3
DOIs	https://doi.org/10.1139/cgj-2012-0279
Publication status	Published - Mar 2013

All Science Journal Classification (ASJC) codes

Civil and Structural Engineering
Geotechnical Engineering and Engineering Geology

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10.1139/cgj-2012-0279

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abstract = "This paper analyzes the effects of complex geometries on three-dimensional (3D) slope stability using an elastoplastic finite difference method (FDM) with a strength reduction technique. A series of special 3D slopes with various geometric configurations, including curving slope surface, turning corners, turning arcs, and turning forms, is presented in terms of factor of safety, shear slip surface, and deformed mesh. More than 180 cases with various geometries for different slope gradient (90°, 45°, and 26.57°) under different boundary conditions (smooth-smooth, rough-smooth, and rough-rough) are calculated and discussed in detail. Many interesting results are obtained and some of them appear to be surprising. These results can be used directly to offer suggestions for landslide hazard preparedness or safe and economical design of infrastructures, e.g., excavations, embankments, and so on.",

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AU - Zhang, Yingbin

AU - Chen, Guangqi

AU - Zheng, Lu

AU - Li, Yange

AU - Zhuang, Xiaoying

PY - 2013/3

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Effects of geometries on three-dimensional slope stability

Abstract

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