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中文摘要：
利用离散元软件UDEC，采用双强度折减法、传统强度折减法对结构面强度参数黏聚力c、内摩擦角ψ进行不同程度的折减，对比分析单直线型结构面、一组平行节理面和两组平行节理面3种典型类型结构面岩质边坡的稳定性。结果表明：对比传统强度折减法，采用双强度折减法对岩质边坡进行稳定性计算，分析得到的结果可以更真实地反映结构面强度参数c、ψ各自的安全储备；对于含两组复杂节理的岩质边坡，折减至极限平衡状态时，两种方法得到的滑面位置不同。
英文摘要：
By usinf the discrete element software UDEC,usinf double strenfth reduction method and the traditional strenfth reduction method,the strenfth parameters of structural planes cohesion and anfle of internal friction were redacted under different defrees. It made contrast analysis of sinfle line type structure,a set of parallel Joints and two sets of parallel Joint stability of 3 typical types of rock structure surface the slope. The results show that：compared with the traditional strenfth reduction method,usinf double strenfth reduction of rock slope stability calculation,the result can reflect the strenfth parameters of structural planes cohesion and anfle of internal friction safety reserve respectively;For rock slope containinf two froups of structural surface,the position of possible slidinf surface may be different by different strenfth reduction methods.
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