边坡稳定性积分解法的可靠度研究及应用  

Reliability of Slope Stability Based on the Integral Method and Its Application

作　　者：陈泽观[1] 林从谋[1] 

机构地区：[1]华侨大学土木工程学院,福建泉州362021

出　　处：《华侨大学学报（自然科学版）》2007年第4期430-432,共3页Journal of Huaqiao University(Natural Science)

基　　金：华侨大学高层次人才科研启动项目资助(02BS204)

摘　　要：运用边坡稳定性积分解法的解析表达式,整理得到与滑裂面圆心有关的可靠度指标表达式,通过计算可得到最小可靠度指标βmin为3.53,以及相应的最小稳定安全系数Fmin为1.316.结合可靠度理论的验算点(JC)法,分析边坡的稳定性并合理解决边坡中多种不确定因素对其稳定性的影响.实例验证表明,得到的安全系数值介于力矩和力平衡条件求得的安全系数值之间,又比简化的Bishop积分法的值小,更符合实际,结果也更能反映工程的实际情况.Based on the analytical formulas of the integral method for slope stability, the expression of reliability index related to the circle center of the slip surface is obtained. The minimum reliability index βmin is 3. 530 and the corresponding minimum safety factor （From） is 1. 316. Applying the checking points （JC） method of reliability theory to analyze the stability of slope, the influence of several uncertain factors on the stability is solved reasonably. The calculation result of practical engineering indicates： the value of safety factor is between the two values obtained by force and moment equilibrium conditions respectively, the value is also less than the one calculated by the integration method of simplified Bishop method. Therefore, this value is more close to the actual engineering, can reflect the actual situation better.

关 键 词：边坡稳定性 积分解法 可靠度 验算点法 

分 类 号：TD824.71[矿业工程—煤矿开采]