重力坝深层抗滑稳定的数值分析

重力坝的深层抗滑稳定性是坝基设计中的重要问题。对于深层抗滑稳定问题比较严重的重力坝,数值分析是作为校核、验证或深入研究的重要手段。重力坝深层抗滑的数值模拟,其核心的问题归结为如何模拟坝基中软弱结构面。通过算例分析说明对软弱结构面采用接触处理法能更好的模拟坝基深层抗滑稳定问题,并把此接触处理法引入对武都17#坝段的数值模拟。

Numerical analysis of gravity dam stability against deep level sliding

The stability of gravity dam against deep level sliding is an important issue in foundation design. For the more serious gravity dams having deep sliding stability, numerical analysis is key means with verifica tion, validation or in-depth study. During Numerical simulation of gravity dam, the core of the problem comes down to how to simulate the layer of soft foundation. The analysis shows that the layer of the soft foundation by contact approach to better simulate the deep foundation stability against sliding, and it was applied into numerical simulation of Wudu 17 # Section.