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Numerical Simulation of Toppling Rock Mass Deformation in the Right Dam Abutment of a Hydropower Station on the Lancang River

详细信息

责任者：Xie Li (State Key Laboratory of Geohazard Prevention and Geoenvironment Protection ; Chengdu University of Technology ; Chengdu 610059 ; China) ; Li Yusheng
刊名：Geology in China
出版年：2009
卷期：36(4)
关键词：边坡稳定性 ; slope stability ; 坝 ; dams ; 澜沧江 ; Lancang River
页码：p.907-914
图表：11 illus., 1 table, 10 refs.
分类号：1702
issnNo：ISSN1000-3657
isbnNo：CN11-1167/P

摘要

Steep and antithetic platy structure of rock mass and geomorphology of the longitudinal valley in the dam site area cause wide-range toppling deformation on the cross-strait slope. Aimed at solving problems of toppling deformation, the authors, in the light of regional engineering geological conditions, analyzed characteristics of toppling rock mass deformation, made degree classification of toppling ruptures, established discrete element slope models for excavation and failure mechanism, and detected characteristics of the excavated slope and four developing processes of failure mechanism. The results provide a scientific basis for stability evaluation of the dip-slip body and the excavation work.

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