金沙江大陆底滑坡稳定性评价  

STABILITY EVALUATION FOR THE DALUDI SLOPE ON JINSHA RIVER

作　　者：杨天勇[1] 余先华[1] 

机构地区：[1]成都理工大学环境与土木工程学院,成都610059

出　　处：《地质灾害与环境保护》2011年第2期88-91,共4页Journal of Geological Hazards and Environment Preservation

摘　　要：在缺少钻孔和平洞勘探资料的条件下,通过现场调查和测量获得的坡体特征确定滑面形态及位置。通过仿真压密试验,获得不同压力下滑带土的孔隙比,用有限元计算滑面正应力,根据仿真样剪切试验得到滑带土强度参数。在此基础上,刚体极限平衡法计算的稳定性系数表明,天然工况下坡体稳定,蓄水工况下将失稳破坏。The shape and position of the sliding slope were determined by its characteristics obtained through field investigation and measurement.Under different pressures,soil porosity ratios were received by compaction simulation test,normal stresses on sliding surface by finite element calculation and soil strength parameters by shear test on samples.Then,the rigid-body limit equilibrium method was used to calculate stability coefficients which indicate a stable slope under natural conditions and a failing one after the reservoir impounded.

关 键 词：大陆底 滑坡 强度参数 稳定性 

分 类 号：P642.22[天文地球—工程地质学]