Simulating the process of reservoir-impoundment-induced landslide using the extended DDA method
作者： Yu-Yong Jiao , Huan-Qiang Zhang , Hui-Ming Tang , Xiu-Li Zhang , Amoussou Coffi Adoko
DOI: 10.1016/J.ENGGEO.2014.08.016
关键词:
摘要: Abstract In this work, three extensions to the traditional discontinuous deformation analysis (DDA) method are tested simulate entire process describing behavior of landslides induced by reservoir impoundment. These include discretization area interest, block gluing and HM (hydro-mechanical) coupling approach. Several hydraulic boundary conditions introduced based on water level during dry rainfall seasons. As verification, processes for two practical landslides, Qianjiangping Majiagou which occurred in Three Gorges Reservoir (TGR) China, simulated. The simulation results agree well with observed failure modes, indicating that proposed methodology can intuitively reproduce impoundment landslide process.
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