植物修复下露天矿弱层群顺层高边坡稳定性分析  

Stability analysis of high slope along weak strata group in open-pit mine under Phytoremediation

作　　者：贾起超 孙杰 郝喆 申城 JIA Qichao;SUN Jie;HAO Zhe;SHEN Cheng(College of Environment,Liaoning University,Shenyang 110036,China)

机构地区：[1]辽宁大学环境学院,辽宁沈阳110036

出　　处：《露天采矿技术》2023年第6期52-55,共4页Opencast Mining Technology

基　　金：辽宁省自然科学基金资助项目(20180550192);辽宁省科技计划资助项目(2019JH8/10300105,2019JH8/10300107,2020JH2/10300100)。

摘　　要：为了研究植物修复治理后露天矿弱层群顺层高边坡的稳定性变化规律,采用数值模拟的方法对阜新海州露天矿北帮顺层高边坡修复前、压脚整形后、覆土植物栽植后的稳定性进行分析。结果表明:在考虑非饱和渗流和正常水位工况下,原始边坡、压脚整形边坡、覆土植物栽植边坡3种状态的安全系数先提高后降低;覆土植物栽植边坡的安全系数比压脚整形边坡的安全系数有所降低,覆土植物栽植会影响露天矿边坡的边坡稳定性。In order to study the stability change law of the high slopes in the weak layer group of the open-pit after plant restoration,this article used numerical simulation to analyze the stability of the high slopes in the north slope of Fuxin Haizhou Open-pit Mine before restoration,after presser foot shaping and after planting.The results show that under the consideration of unsaturated seepage and normal water level conditions,the safety coefficients of the original slope,the pressurized foot shaped slope and the mulch planted slope increased and then decreased;the safety coefficient of the mulch planted slope was lower than that of the pressurized foot shaped slope,and the mulch planted slope affected the slope stability of the open-pit slope.

关 键 词：植物修复 顺层高边坡 弱层群 稳定性 非饱和渗流 压脚整形 

分 类 号：TD824.7[矿业工程—煤矿开采]