露天矿倾斜内排压帮边坡稳定性控制方法研究

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ZHAO JianjiangCAOLanzhuMA WenzheetalResearchonstabilitycontrolmining methodofopen-pitopewithinclinednteraldischargetracingpreurea[J]ouaofiongcialUniversity（aturaiene）5，44（2）：5-65O96.issn.1008-0562.20240008

Research on stability control mining method of open-pit slope with inclined internal discharge tracking pressure wall ZHAO Jianjiang'， CAO Lanzhu2*，MA Wenzhe'，Maiwulanijiang Moheteer1 （1. Zhundong Open-pit Coal Mine， Guoneng Xinjiang Zhundong Energy Company Limited，

Changji83110，China;2.College ofMining，Liaoning Technical University，Fuxin，China）

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 twodimensional and three-dimensional methods，limit equilibrium method and numerical simulation method，and he optimaltracking 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 schemeof stope and internal dumping site is determined.The results show that theslope stabilityof theeast 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 50m ，and the direction of the internal drainage working lineis 22∘ .Compared with the parallel development scheme of the working line and stopeworking linein the inner dump，the safetyand economic benefitsare significantly improved.The research conclusion can provide anew solution for the technology of tracking pressure and walin open pit coal mine.

Keywords：open-pitcoal mine;horizontal miningand internal drainage; slope stability;tracking distance; layout of soil discharge line

0引言

露天矿在生产过程中会将剥离的土壤直接排弃到采场的采空区内，形成内排土场[1。（剩余11260字）