基于数理统计理论的边坡安全系数新算法  

A new mathematic theory of statistics for calculating the safety factor of bank slope

作　　者：李启月[1] 罗章[1] 朱昌玉[2] 贾慧芹 

机构地区：[1]中南大学资源环境与建筑工程学院,湖南长沙410083 [2]水口山矿务局,湖南衡阳421500 [3]山东新城金矿,山东莱州260000

出　　处：《江西有色金属》2001年第3期8-10,共3页Jiangxi Nonferrous Metals

摘　　要：露天开采的最终边坡角既决定着边坡的安全 ,也直接影响着开采的经济效益。笔者在收集大量国外边坡工程实例的基础上 ,运用数理统计理论 ,归纳出边坡安全系数新算法。运用该算法校验了某矿开采设计的最终边坡角 ,当α=45°,安全系数F=1.49>Fmin,边坡稳定 ;但当α=50°,F=1.33>Fmin,边坡也稳定 。The final bank slope not only determines the slope stabilization but also direct offect the economic benefits of the mining. A new formula for calculating the safety factor of bank slope is induced from a lot of examples of slope engineering at abroad by means of statistics. With the application of the formula, the bank slope (α) of a certain surface mine is verified, the safety factor F=1.49 >Fmin, given α=45°,the side slope is stable, while F=1.33 >Fmin, given α=50°,the side slope is also stable.The formula indicates that the final bank slope angle can be enlarged.

关 键 词：露开开采 边坡角 安全系数 数理统计 

分 类 号：TD854.6[矿业工程—金属矿开采] O212[矿业工程—矿山开采]