摘要
滑坡稳定性受多种内外因素的影响。运用因素敏感性分析方法,对滑坡稳定性有较大影响的因素进行检查和分析,可以确定影响滑坡稳定性的最敏感和较敏感因素,从而更加有针对性地进行滑坡监测和防治工作。文章在宏观工程地质条件分析的基础上,运用正交试验设计方法对草街子双堰塘滑坡进行了影响因素敏感性分析,最后的极差分析和方差分析结果表明,内聚力、库水位变化和内摩擦角是影响该滑坡稳定性的最为显著和敏感的因素。因此,避免地表水下渗对滑带土的软化,以及做好库岸防护以防止库水位升降对滑坡稳定性的不利影响,对于保持该滑坡的稳定具有十分重要的意义。
This paper analyses the Caojiezi\|Shuangyantang landslide sensitivity factors with orthogonal experiment design method on the basis of analyzing engineering geological conditions synthetically.The results of range analysis and variance analysis show that cohesion,the changing of water level in the Three\|Gorge Reservoir and internal friction angle of soil and rock are the dominant sensitivity factors which affected the landslide stability.Therefore,in order to maintain the stability of the landslide,it is important to avoid soil softening in the slide plane caused by the surface water infiltrating and make the reservoir banks protection work better.
出处
《中国地质灾害与防治学报》
CSCD
2003年第2期15-18,共4页
The Chinese Journal of Geological Hazard and Control
