滑坡运动过程仿真分析

殷坤龙; 姜清辉; 汪洋

Volume 27 Issue 5

Sep. 2002

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Article Navigation > Earth Science > 2002 > 27(5): 632-636

YIN Kun-long, JIANG Qing-hui, WANG Yang, 2002. Simulation of Landslide Movement Process by Discontinuous Deformation Analysis. Earth Science, 27(5): 632-636.

Citation:

YIN Kun-long, JIANG Qing-hui, WANG Yang, 2002. Simulation of Landslide Movement Process by Discontinuous Deformation Analysis. Earth Science, 27(5): 632-636.

YIN Kun-long, JIANG Qing-hui, WANG Yang, 2002. Simulation of Landslide Movement Process by Discontinuous Deformation Analysis. Earth Science, 27(5): 632-636.

Citation:

YIN Kun-long, JIANG Qing-hui, WANG Yang, 2002. Simulation of Landslide Movement Process by Discontinuous Deformation Analysis. Earth Science, 27(5): 632-636.

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Simulation of Landslide Movement Process by Discontinuous Deformation Analysis

1.
Engineering Faculty, China University of Geosciences, Wuhan 430074, China
2.
College of Water Conservancy and Hydropower Engineering, Wuhan University, Wuhan 430072, China

Received Date: 2002-03-12
Publish Date: 2002-09-25

Abstract

Abstract

Landslide is a dynamic process. The movement of landslide body is a complex dynamic process composed of sliding, rotational, and tensile movements. Either the traditional limit equilibrium calculation or finite element analysis cannot be used to describe the characteristics and process of landslide movements. The discontinuous deformation analysis (DDA), a new discrete numerical simulation method, incorporates both the massive dynamic theory and the numerical analysis, so as to make a static and dynamic calculation of the massive body. In this paper, the discontinuous deformation analysis is applied to the numerical simulation of the dynamic movement process of Xintan landslide in the Three Gorges reservoir. This simulation classifies the landslide profile as 504 units in terms of geology, topography, soil and rock body types and geological structural surface types. The simulation results show that the Xintan landslide started with the partial failure of the Jiangjiapo belt in the middle of the landslide, and then the upper part of the landslide was further trailed upward and the lower part of the landslide was further pushed downward. Both the displacement variation curves and the sliding speed variation curves of the representative massive units show that the deformation of the massive body system of the sliding slope is discontinuous in the sliding process, and that the movements of different masses are quite different in shape, reflecting well the whole dynamic process of the landslide and revealing the dynamic mechanism of the landslide.
- landslide,
- simulation,
- discontinuous deformation analysis

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References(7)

References

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