摘要
稳定性分析是边坡工程一项重要的工作,目前在工程设计中常用的边坡稳定分析方法为安全系数法,它是经过长期工程实践证明的一种有效设计方法。由于现阶段只有理论上计算边坡安全系数的公式,并不能直观感性的认识,不便于工程实践上应用。针对影响边坡稳定性的主要参数,采用极限平衡原理、强度折减法对土的抗剪强度指标粘聚力c和内摩擦角φ,边坡的坡角α和坡高H进行分析,通过不断改变单一变量的值,得出其与边坡安全系数的关系,并采用软件分析拟合出公式,从而得出简单可行的判断边坡安全系数的方法。
Slope stability analysis is an important work project,now commonly used in engineering analysis of slope stability safety factor method,which is the result of long-term project proved an effective design method.Because at this stage,only the theoretical slope safety factor calculation formula,and not intuitive perceptual knowledge,engineering practice is not easy application.In this paper,the main parameters affecting slope stability,using the limit equilibrium principle,strength reduction of soil shear strength parameters c and the slope of the slope angle and slope height H analysis,by changing a single variable,was out its relationship with the slope safety factor,and using software to analyze the fitting formula to arrive at a simple and feasible method to determine the slope safety factor.
出处
《水土保持研究》
CSCD
北大核心
2011年第4期273-276,共4页
Research of Soil and Water Conservation
基金
山西省水利厅资助项目(晋坝科070301)
关键词
边坡稳定
极限平衡原理
强度折减法
slope stability
limit equilibrium method
strength reduction method
