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