露天采矿技术2024，Vol.39Issue(6)：36-39,4.DOI:10.13235/j.cnki.ltcm.2024.06.008
胜利东二号露天煤矿采场南帮局部边坡变形治理
Deformation control of local slope in the south slope of stope in Shengli East No.2 Open-pit Coal Mine
摘要
Abstract
In response to the problem of double-step deformation on the west slope of the south slope landslide area of Shengli East No.2 Open-pit Mine,the article qualitatively analyzes the slope stability,selectes the typical section and establishes two-dimensional slope model.The article determines potential landslide mode using discrete element numerical simulation,calculates the slope stability based on the rigid body limit equilibrium method,and accordingly proposes a slope trimming and reshaping treatment scheme.The results show that the deformation zone's failure mode is circular sliding.The slope stability coefficient before treatment is 0.993,and it is 1.102 after the slope trimming and reshaping treatment.The local slope angle is reduced to 18°,meeting the safety reserve coefficient requirements.关键词
软岩边坡/PFC2D/强度折减法/剪切破坏/整形设计Key words
soft rock slope/PFC2D/strength reduction method/shear failure/plastic surgery design分类
矿业与冶金引用本文复制引用
王守功..胜利东二号露天煤矿采场南帮局部边坡变形治理[J].露天采矿技术,2024,39(6):36-39,4.基金项目
国家自然科学基金资助项目(52374124) （52374124）
鄂尔多斯市科技重大"揭榜挂帅"资助项目(JBGS-2023-003) （JBGS-2023-003）
