三峡大学学报（自然科学版）2012，Vol.34Issue(6)：12-16,5.
考虑流固耦合的水位降落期坝坡稳定分析
Analysis of Dam Slope Stability During Drawdown of Reservoir Water Level Considering Fluid-solid Coupling
田江 1沈长松 1王栋良2
作者信息
- 1. 河海大学水利水电学院,南京210098
- 2. 中国水电顾问集团华东勘测设计研究院,杭州 310014
- 折叠
摘要
Abstract
Analysis of earth-rock dam slope stability during drawdown of reservoir water level is one of important contents in earth-rock dam design and reinforcement projects. In order to accurately and reasonably analyze the dam slope stability during drawdown of reservoir water level, this paper applies finite element method to analyze the dam slope stability for a dilapidated reservoir, based on the fluid-solid coupling theory of unsaturated soil. The results are compared with the traditional limit equilibrium method. The effect of material parameters on slope stability is analyzed. The results show that the finite element method based on unsaturated soil fluid-solid coupling theory is an convenient and reasonable method. The distribution of pore water pressure and the stability factor of dam slope calculated by this method are well consistent with practice. The internal friction angle and the cohesion has much larger influence on the stability factor of dam slopes the Poissons ratio has relatively small influence ,but the Young's modulus almost has no influence on the stability factor.关键词
坝坡稳定/流固耦合/水位降落/有限元法Key words
stability of dam slope/fluid-solid coupling/drawdown/finite lement method分类
建筑与水利引用本文复制引用
田江,沈长松,王栋良..考虑流固耦合的水位降落期坝坡稳定分析[J].三峡大学学报（自然科学版）,2012,34(6):12-16,5.
