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本文以线弹性断裂力学的观点对重力坝上游坝面和坝踵水平进行了分析,结果表明:重力坝上游存在一个允许水平裂缝区;坝踵裂缝扩展是重力坝破坏的开始.应该用断裂力学方法校核坝踵裂缝的稳定性,并以此作为重力坝稳定的补充条件.
In this paper, the level of upstream dam surface and dam heel of gravity dam is analyzed from the point of view of linear elastic fracture mechanics. The results show that there is a horizontal fracture zone upstream of gravity dam and the crack propagation of dam heel is the beginning of gravity dam failure. Method to check the stability of the heel cracks as a supplement to the stability of the gravity dam.