Abstract: The effect of anchor failure caused by anchor lattice beam on the slope stability is analyzed by numerical simulation．The other anchor cables’stress change and slopes’failure situation are simulated，after the anchor failure of anchored slope from the loading to different ocations and orders． Mechanism of slope anchor failure influencing the slope stability is studied． Research results show that: in the situation of loading，the upper anchors of the slope are more inclined to anchor damage than the lower anchors，and the anchor force of the failed anchor will transfer to other anchors． Anchor damages at different locations of slope caused by line failure have different effect on the slope stability．

Key words: rock and soil engineering, slope anchor, failure mechanism, anchor failure, numerical simulation

摘要： 通过数值模拟分析设格子梁的锚失效对岩质边坡稳定性的影响。模拟了锚固边坡从加载到不同位置和顺序的锚失效后，其它锚索应力的变化以及边坡破坏情况; 研究了边坡锚索失效对边坡稳定性的影响机理。研究结果表明: 在荷载作用下，边坡上排锚索比下排锚索先破坏，失效锚索的锚固力会向其他锚索转移; 折线破坏的边坡不同位置锚索破坏对边坡稳定性的影响有所不同。

关键词: 岩土工程, 边坡锚固, 失稳机理, 锚索失效, 数值模拟