摘要
为了确保某露天采空区内排土场后期的安全使用与边坡稳定,根据工程地质条件,采用有限差分程序FLAC2D和极限平衡法对该内排土场的边坡结构参数在天然、地震、降雨三种工况条件下进行稳定性计算。通过现状模拟结果表明:排土场边坡稳定性在三种不同工况下满足规范安全等级要求,该内排土场边坡处于稳定状态,具有一定的安全储备,说明该内排土场的堆排设计方案具有一定的可靠性和合理性,为废土石体堆排提供了指导依据,同时做好对该排土场边坡的变形监测。
In order to ensure the safe use and slope stability of the waste dump in an open-pit goaf,according to the engineering geological conditions,FLAC2D and limit equilibrium method are used to calculate the stability of the slope structure parameters of the waste dump under natural,earthquake and rainfall conditions.The simulation results show that,the slope stability of waste dump meets the requirements of safety grade in three different working conditions,the slope of the inner waste dump is in a stable state with certain safety reserve,which shows that the design scheme of the dump has certain reliability and rationality,which provides guidance for the dump of waste rock and provides a good deformation monitoring for the slope of the dump.
出处
《中国矿山工程》
2020年第2期9-11,共3页
China Mine Engineering
关键词
边坡
排土场
稳定性
安全系数
拦渣坝
slope
dump
stability
safety factor
debris retaining dam
