【摘要】 地震震裂山体是四川"5·12"地震灾区发育的具有"裂"而未"滑","松"而未"动"特征的一类典型滑坡地质灾害。通过对绵竹市清平乡三兴庙滑坡区的地形地貌和地质构造的详细描述,着重分析了地震震裂山体——三兴庙滑坡变形的破坏机制和影响因素。综合运用参数反演和室内试验等方法确定了滑体和滑带土的物理力学参数,采用滑坡推力法建立了滑坡稳定性分析模型,对5个潜在滑动带进行了不同工况计算,提出了三兴庙滑坡的综合治理方案:结合地表排水工程,在滑坡变形区主滑段前缘设置抗滑桩,通过抗滑桩将滑坡下滑力传递至深部稳定地层,并满足上部滑体不产生越顶现象;在已滑塌区后缘设置板桩式挡墙,清除危岩,平整坡面,一方面起到保护坡脚安置区的作用,另一方面可以将滑塌物质固定在上部,起到回填压坡脚之功效,促使滑体逐渐发展为自然稳定状态。更多还原

【Abstract】 The earthquaked shattering mountains were typical landslide geological hazards, which were cracked but not slipped or loosened but not moved in the earthquake developed areas. Through a detailed description of the topography and geomorphology, and geological structures against the background of Sanxing Temple landslide area, the authors emphatically analyzed the destruction mechanism and affecting factors that caused the deformation of the shattering mountain:Sanxing Temple landslide. The physical and mechanical parameters of slipping body and sliding-zone soil were determined by using parameter inversion and laboratory test. A landslide stability analysis model was established through landslide-thrust method and five potential sliding zones were calculated in different conditions and the comprehensive treatment plans were proposed.更多还原