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针对救援通道位置和断面形状选择两个在决策中必然触及的问题,首次在阐明断层破碎带的垮冒空间特征、堆积体堆积特征、堆积体边界力学特征的基础上,通过数值模拟对比分析,给出了救援通道的优选位置及其断面的宜选形状.研究表明:因自然冒落平衡拱的存在,断层破碎带的垮冒具有有限性,仅限于椭圆形轨迹线以内.垮冒堆积体边界受力为被动抗力,源于堆积体堆积过程中的边坡滑移效应.基于减少对堆积体扰动且保持其内部块体间维系原有自然平衡的稳定、巷道原支护体失稳堆积以及通道开挖过程中的破拆问题,救援通道的位置宜选择避开支护体堆积区的堆积体中中部,而救援通道的断面形状则应优先考虑采用直墙拱形和直墙尖顶形断面.“,”This paper is a response to the fault fracture zone with the greatest vulnerability to collapse-caving of roadways The first-of-its-kind study is focused on determining the optimization location and appropriate section shape of rescue channel by the numerical simulation analysis, coupled with a better insight into collapse-caving spatial characteristics of fault fracture zones, and accumulation characteristics of accumulation body, and border mechanics characteristics of accumulation body.The research demonstrates that the occurrence of natural balance arch tends to leave the collapse-caving of fault fracture zones limited to the elliptical line within;the boundary of the collapse-caving accumulation body is subjected to a force-a passive resistance force coming from the slope slip effect of accumulation body;and the attempt to reduce the disturbance to accumulation body and maintain the original natural stability of inner rocks, along with the consideration of the instability accumulation and forcible entry of support during rescue channel excavation requires that preferential location for the rescue channel be kept in the middle part of accumulation body area away from support accumulation, and in considering the appropriate section shape of rescue channel, a top priority be given to the straight wall arch and straight wall tip-top section shape.