【摘要】 基于危岩体特征，先将危岩体进行分区评价，并采用强度折减法验证边坡的稳定性，再采用荷载结构法验证隧道结构的安全性，进而提出合理的处治方案，保证隧道施工及运营安全。研究结果表明：1)分布范围广的危岩体，应结合裂隙发育状态、破坏方式等进行分区域评价，量化安全指标；2)针对节理裂隙发育、结构面切割作用强的危岩体，应采用锚固、嵌补、反压等措施相结合的综合处治方案；3)高陡边坡危岩体处治应综合监控量测数据进行处治效果后评价。基于构造分区的高陡坡面危岩体稳定性评价量化了安全指标，既可确保安全，又可避免因过度防护造成成本增加，可供类似工程参考。更多还原

【Abstract】 Based on the characteristics of unstable rock masses, the area is first evaluated by zoning, and the stability of the slope is verified using the strength reduction method. Then, the safety of the tunnel structure is verified using the load-structure method, leading to the proposal of a reasonable treatment plan to ensure the safety of tunnel construction and operation. The research results indicate that: 1) For unstable rock masses with a wide distribution, a zonal evaluation should be conducted considering the state of crack development and failure modes, and safety indicators should be quantified; 2) For unstable rock masses with well-developed joint cracks and strong structural plane cutting effects, a comprehensive treatment plan combining measures such as anchoring, embedding, and back pressure should be adopted; 3) The treatment of unstable rock masses on high and steep slopes should be followed by a post-evaluation of the treatment effectiveness based on comprehensive monitoring and measurement data. The stability evaluation of unstable rock masses on high and steep slopes based on structural zoning quantifies safety indicators, ensuring safety while avoiding cost increases due to excessive protection, which can serve as a reference for similar projects.更多还原