辽宁工程技术大学学报（自然科学版）2025，Vol.44Issue(2)：157-165,9.DOI:10.11956/j.issn.1008-0562.20240008
露天矿倾斜内排压帮边坡稳定性控制方法研究
Research on stability control mining method of open-pit slope with inclined internal discharge tracking pressure wall
摘要
Abstract
In order to study the stability control mining method of the inner row tracking pressure slope in the inclined coal seam of the open-pit mine,the east slope of the first mining area of the Zhundong open-pit mine is taken as the engineering background.The stability of the east slope is analyzed by combination of two-dimensional and three-dimensional methods,limit equilibrium method and numerical simulation method,and the optimal tracking distance of the inner row pressure slope is determined.Based on the en-gineering conditions of maximizing the utilization of internal dumping space,the mathematical expression of dumping line layout is established,and the working line layout scheme of stope and internal dumping site is determined.The results show that the slope stability of the east side of the first mining area is negatively correlated with the tracking distance and slope angle.The optimal tracking distance of the internal drainage pressure wall is 50 m,and the direction of the internal drainage working line is 22°.Compared with the parallel development scheme of the working line and stope working line in the inner dump,the safety and economic benefits are significantly improved.The research conclusion can provide a new solution for the technology of tracking pressure and wall in open pit coal mine.关键词
露天煤矿/横采内排/边坡稳定性/追踪距离/排土线布置Key words
open-pit coal mine/horizontal mining and internal drainage/slope stability/tracking distance/layout of soil discharge line分类
矿山工程引用本文复制引用
赵建疆,曹兰柱,马文哲,买吾拉尼江·莫合特尔..露天矿倾斜内排压帮边坡稳定性控制方法研究[J].辽宁工程技术大学学报（自然科学版）,2025,44(2):157-165,9.基金项目
国家自然科学基金项目(52204136) （52204136）
