Mechanics Research on Rock Stress and Deformation of Lancang River Canyon's Large - Scale Dumping Deformation

Abstract:

This article is based on geological surveys combined with finite element and discrete element numerical simulation methods. In-depth analysis of the complex geological structure, deformation characteristics and stress - deformation problems of dumping rock, we clarify different deformation characteristics of deformable landslide inside, at the bottom and the deep part of trailing edge, and demonstrate the deformation will gradually shift from dumping to shear slip. Potential deformation failure mode will be dumped into the whole sliding - tension, which is controlled by the bottom broken belt, and potential deformation is mainly subject to the bottom fault F_207-3 of deformed rock and the dumping broken belt at the deep part of trailing edge.

• Periodical: Applied Mechanics and Materials (Volumes 353-356)
• Pages: 318-323
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.353-356.318
• Online since: August 2013
• Authors: Song Ye, Yu Sheng Li*, Qian Guo
• Keywords: Deformation, Displacement, Dumping, Numerical Simulation, Rock, Stress

References

[1] Zhuoyuan Zhang, Shitian Wang, Lansheng Wang. Principle of engineering geology analysis [M]. 2nd ed. Beijing: Geological Publishing House, 1994. (In Chinese).

[2] Guangming Ren, Min Xia, Guo Li, Chang Liu, Furong Zhang. Study on toppling deformation and failure characteristics of steep bedding rock slope [J]. Chinese Journal of Rock Mechanics and Engineering, 2009. 28(Supp. 1): 3193 – 3200 (In Chinese).

[3] TAMRAKAR N K，YOKOTA S, OSAKA O. A toppled structure with sliding in the Siwalik Hills, Midwestern Nepal [J]. Engineering Geology, 2002, 64(4): 339 – 350.

DOI: 10.1016/s0013-7952(01)00095-3

[4] Qing Zhou. etc. Evaluation report on reservoir induced earthquake and seismic safety of engineering site in Huangdeng's hydropower station of Lancang River [R] (Earthquake security evaluation.

[2006] 5) (In Chinese).

[5] Beichuan Han, Sijing Wang. Mechanism for toppling deformation of slope and analysis of influencing factors on it [J]. Journal of Engineering Geology, 1999, 7(3): 213-217(In Chinese with English abstract).

[6] Yuqian Li, Yusheng Li, Xiaofang Yang. Patterns and mechanism of slope deformation and failure of a certain hydropower station [J]. Journal of Water Resources and Architectural Engineering, 2008, 6(3), 39-46.