摘要
正在建设中的西南某水电站,在开挖过程中,右坝肩岩体的不同部位出现了不同程度的变形破坏迹象,局部出现了小规模的跨塌现象。为了评价开挖对边坡的影响,根据施工开挖的顺序,应用三维弹塑性有限元数值法对坝肩边坡开挖后的变形、应力状况及破坏区分布进行模拟,揭示边坡可能的失稳的部位,并对边坡的支护方案提出建议。
Some evidences of failure by rupture appeared on the right dam abutment slope of a southwestern hydropower station during the excavation, and collapses took place in some local zones. In order to evaluate the effect of excavation, according to the order of the excavation, the method of 3-D elastoplastic finite element analysis is used to simulate the deformation, the distribution of stress and failure area, so the possible failure location of the slope can be revealed, moreover table a proposal about the support blue-print.
出处
《水土保持研究》
CSCD
北大核心
2007年第3期95-97,共3页
Research of Soil and Water Conservation
关键词
开挖边坡
三维有限元分析
坝肩槽
边坡稳定性
excavated slope
3D finite element analysis
dam abutment
stability of slope