清江水布垭工程坝址岩体稳定性三维数值模拟研究

3-D NUMERICAL SIMULATION ON ROCK STABILITY OF SHUIBUYA HYDROELECTRICAL PROJECT ON THE QINGJIANG RIVER

清江干流水布垭水电枢纽是与隔河岩、高坝洲水电枢纽并重的国家级大型水电工程 ,坝址区高边坡稳定性问题是水布垭坝址主要的工程地质问题之一。采用三维有限元数值模拟方法 ,对坝址区岩体应力场和位移进行了研究 ;探讨了岩体三维应力、应变分布与岩体变形破坏的关系 。

The Shuibuya hydroelectric project on the Qingjiang River is as important as Geheyan and Gaobazhou hydroeletric projects in China.The stability of rock slope is one of main engineering problems in Shuibuya dame site. In this paper,the authors study stress and strain field of rock body in dam site using 3- D finite- element simulation method,discuss the correlation3- D stress and strain of rock body to rock failure,and evaluate the stability of rock body.