水力发电2011，Vol.37Issue(4)：35-38,4.
含不利组合结构面的高边坡开挖稳定性分析
Analysis on Excavation Stability of High Slope with Unfavorable Combination of Structural Planes
摘要
Abstract
The overall and local stabilities of slope are analyzed by finite difference method and block limit equilibrium theory respectively for a hydropower project. The results show that: (i) Local small faults do not pose a greater threat to the overall stability of slope, but some of areas which containing faults should be focused; (ii) The areas of displacement and tensile stress after excavation are smaller and should be reinforced as needed; (iii) In the excavation of the area between El. 430-460 m, the excavation profile may be composed unstable blocks with two sets of structural planes, so the direction and sequence of excavation should be paid attention to; and, (iv) Because two sets of structural planes after excavation are far away from the downstream excavation surface, it is unlikely to form a unstable block, but the drainage should be assured.关键词
边坡/稳定性分析/有限差分法/块体极限平衡理论Key words
slope/ stability analysis/ finite difference method/ block limit equilibrium theory分类
建筑与水利引用本文复制引用
党莉,刘军,刘海飞,卢鹏,陈星..含不利组合结构面的高边坡开挖稳定性分析[J].水力发电,2011,37(4):35-38,4.基金项目
国家自然科学基金(50909052) （50909052）
湖北省自然科学基金计划项目(2008CDB366) （2008CDB366）
峡大学硕士学位论文培优基金资助项目(2010PY018) （2010PY018）
