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以贵州境在建杭瑞高速公路某大型滑坡作为研究对象,在综合分析已有的工程地质勘探资料的基础上,对滑坡产生的原因进行了剖析。同时运用极限平衡法,分析了滑坡变形破坏的模式及滑坡稳定性,提出了强支挡、削坡减载+抗滑桩及全削坡减载等3种滑坡治理措施。在此基础上对不同整治措施的技术可行性及经济指标进行比较分析,优选削坡减载+抗滑桩方案。实践表明,削坡减载+抗滑桩方案是一种治理滑坡性价比很好的方法。
Taking a large-scale landslide in Hangjing Expressway under construction in Guizhou Province as a research object, the causes of landslides are analyzed based on the comprehensive analysis of existing engineering geological exploration data. At the same time, the limit equilibrium method is used to analyze the deformation and failure modes of landslide and the stability of the landslide. Three kinds of landslide control measures are proposed, such as strong support, slope loading + anti-slide piles and full-slope loading. Based on this, the technical feasibility and economic indexes of different remediation measures are compared and analyzed. Practice shows that cutting slope loading + anti-slide piles program is a good way to control landslide cost.