梯子岩危岩体位于凤冈县土溪镇，受河流下切的影响，坡体卸荷产生一系列变形。同时，常年性岩溶水对危岩体的冲蚀和梯子岩公路的通车，加剧了危岩体的不稳定性，为当地居民的生命财产安全埋下了巨大隐患。本文在野外调查的基础上，深入分析其形成机理，模拟其发展演变过程，运用极限平衡理论对其稳定性进行计算，并提出相应的防御对策。%The Tiziyan dangerous rock, located in the Tuxi town of Fenggang county, has developed a series of deformation resulted from river downcutting and slope unloading. At the same time, the perennial karst water erosion in the dangerous rock and the traffic running of Tiziyan road have exacerbated the instability of the dangerous rock, putting the safety of life and property of local residents at a huge risk. In this paper, formation mechanism of the Tiziyan dangerous rock was analyzed based on the field survey. Its development and evolution processes were simulated, and the limit equilibrium theory was applied in the stability analysis at the end with some corresponding preventing strategies presented.
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