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209国道K1661+370~420段滑坡位于湖北省宜昌市兴山县境内,受强降雨作用,坡体产生了较大变形,出现了古滑坡复活现象。通过地质条件分析,阐明了滑体的破坏机理,指出裂隙扩张、大气降水和人工扰动为其主控因素,并采用极限平衡法对坡体进行了稳定性评价,提出了钢轨桩与挡土墙相结合,辅以排水措施的加固方案。结果表明,滑坡经治理后达到稳定状态,该方案对本地区滑坡的防治具有借鉴意义。
209 National Highway K1661 + 370-420 landslide is located in Xingshan County, Yichang City, Hubei Province. Due to heavy rainfall, the slope body has been greatly deformed, resulting in the revival of the ancient landslide. Through the analysis of geological conditions, the failure mechanism of the sliding body is expounded, and the main factors of crack expansion, atmospheric precipitation and artificial disturbance are pointed out. The stability of the slope body is evaluated by the limit equilibrium method. Combined with drainage measures to strengthen the program. The results show that the landslide has reached a steady state after its treatment, and this plan can be used as a reference for prevention and control of landslides in this area.