【摘要】 影响边坡稳定性的因素众多,故有必要对该影响因素进行敏感性分析,而以往研究针对库水边坡敏感性研究较少。基于Geo Studio软件的极限平衡分析法,对影响水库边坡变形6个主要因素敏感性大小采用正交设计和灰色关联法进行研究。分析结果表明,各种因素的敏感性排序为:内摩擦角>黏聚力>渗透系数>下降速率>坡度>库水下降幅度。正交设计和灰色关联法的结合不仅可以考虑各影响因素之间的相互作用,较大程度地消除试验产生的误差,而且可以克服传统数理统计分析的缺点,具有高效性。研究结果为库区涉水边坡支护及防治工作提供一定的参考和借鉴。更多还原

【Abstract】 Orthogonal experiment and grey correlation analysis method are coupled to make sensitivity analysis on six main influence factor for a homogeneous slope in reservoir area using GeoStudio-based limit equilibrium analysis method. The sensitivity of slope stability factors ranks in the order of internal friction angle,cohesive force,permeability coefficient,rate of reservoir water level drawdown,slope angle,and degree of declining in reservoir water level. The combination of orthogonal design and grey correlation method could,to a large extent,eliminate the errors generated by tests by taking the interactions among factors into consideration,and could also overcome the shortcomings of traditional mathematical statistics analysis. The results offer reference for the support of reservoir slope and prevention works.更多还原