摘要
结合广西百色水利枢纽坝址区地形地质特性，针对坝基含断续节理裂隙岩体的强度特点，运用三维非线性数学模型对右河床最危险坝段坝基稳定性展开系统研究，揭示该坝段地基变形与超载特性，给出坝基整体稳定的超载安全度、强度储备安全度及综合安全度，文中还根据数学模拟分析得到的坝基破坏模式，提出了进一步提高坝基稳定安全度的工程处理措施。
In consideration of the geological characterisitis and the existence of fractured rockmass, this paper systematically studied the most dangerous dam foundation part of right bankusing 3D nonlinear finite element model. The deformation and over-lOad features are alsostudied. The overload safety factor. the strength reservation safety factor, and the generalsafety factor are calculated. Based on the failure mechanism demonstrated by the model, somemeasures to improve.the stability factor are Proposed.
关键词
RCC重力坝
坝基
稳定性
有限元法
数值模拟
: RCC gravity dam
stability of dam foundation
over-load feature
finite elementmethod.
