Four major failure modes for high arch dams, namely destabilization dam lost stability failure, shearing-slipping failure, excess cracking and man-caused destruction, are presented by means of failure tree analysis.

• 摘要利用故障树分析法得出了高拱坝具有失稳溃坝、剪滑垮坝、超量开裂及毁坝等4种主要失效模式。