摘要
针对单一土层边坡,选取了边坡体坡度、土体材料的天然容重、凝聚力和内摩擦角四个主要影响因素,采用了Bishop的边坡稳定分析计算方法探讨了边坡的抗滑稳定安全系数在临水坡有水和无水状态下与每个因素之间的响应关系。研究结果表明:边坡抗滑安全系数与边坡系数、凝聚力和内摩擦角基本成正相关,而与土体容重成反比关系;四个因素中,边坡系数对安全系数影响最大,临水坡水位的高低对边坡稳定亦有较大的影响。该研究结果对实际工程具有现实的指导意义。
Aiming at the slope with one single soil layer ,the response relationship between the anti-sliding stability safety factor of slope and the slope gradient ,bulk density of soil ,cohesion and internal frictional angle in the upstream slope with water and without water condition is discussed .The Bishop method for slope stability analysis and calculation is used .The results show that a positive correlation can be found between the anti-sliding stability safety factor of the slope and the slope gradient ,cohesion and internal fric‐tional angle .On the contrary ,the safety factor of the slope is inversely proportional to the bulk density of soil .The slope coefficient is in the biggest influence on safety coefficient among the four influencing factors .And the water level on the upstream slope also has a great influence on slope stability .
出处
《中国农村水利水电》
北大核心
2015年第7期142-145,共4页
China Rural Water and Hydropower
关键词
边坡抗滑稳定
安全系数
坡度
容重
凝聚力
内摩擦角
slope anti-sliding stability
safety factor
slope gradient
bulk density
cohesion
internal frictional angle
