复杂岩体深层滑动的瞬时转动分析法

Instantaneous rotation analysis of deep sliding in complex rock foundation

本文提出重力坝深层滑动稳定是绕某个瞬时中心作微小转动的过程，由滑动刚体力的平衡，确定任一瞬时该中心的位置，即可确定岩体内滑动面的滑动力矩和阻滑力矩，从而得到滑动稳定安全系数．计算表明该方法比较方便。

Based on the rigid block movement theory,the deep sliding of gravity dam can be regarded as rotation failure process around a certain instantaneous center. With the help of the balance of counter forces in the sliding surfaces and the external loads, this center can be determined and the sliding moment and anti-sliding moment can be found out easily, then the sliding safety factor can be obtatined. This method is available for all patterns of sliding surface.