边坡下矿体回采过程的数值分析  

Numerical Simulation of Ore-body Stoping Process under Slope

作　　者：王立君[1] 曹希[2] 

机构地区：[1]东北大学 [2]山东黄金集团有限公司

出　　处：《金属矿山》2010年第11期16-20,共5页Metal Mine

基　　金：国家高技术研究发展计划(863计划)项目(编号:2007AA06Z107);"十一五"国家科技支撑计划项目(编号:2008BAB34B01;2008BAB34B02);教育部新世纪优秀人才支持计划基金项目(编号:NCET-07-0163);国家自然科学基金项目(编号:50974031);中央高校基本科研业务费项目(编号:N090401006)

摘　　要：针对山东黄金集团归来庄金矿西部高陡边坡下矿体的回采设计,分析了回采与边坡的相互影响。首先在现场工程地质调查,以得到研究范围内岩体结构特征。然后,分析回采作业对边坡的影响因素,设计工程部位计算模型,通过分析单元的破坏研究边坡的破坏范围。最后,对回采过程中引起边坡破坏的重要区域进行分析,为合理的支护手段提供论据。分析结果表明,边坡整体稳定性较好,坑底向下开采会对边坡产生较大的影响,回采边坡内的矿体对边坡的影响不大。破碎条带灰岩中破坏单元集中,回采下部的矿体可能导致边坡局部的失稳,及时充填可以保证边坡的长期稳定。所得结论可为同类工程的设计、施工和研究提供有益的借鉴和参考。Mainly aiming at the mining design of ore-body under the high-steep slope in Guilaizhuang gold mine,the influence between mining and slope is analyzed.First,on the basis of slope engineering geological investigation,the rock mass structural features of engineering areas is obtained.Second,considering the influencing factors of stoping,a slope engineering rock mass model of FLAC3D is designed.Through analyzing elemental fracture,the destroy range of slope is studied.Finally,in order to design the rational support,the important destroy range during stoping is analyzed.The results show that the slope is stable from the overall aspect.The impact of digging trench（seam road） on the stability of rock slope is relatively obvious,while the stoping inside the slope less affects the stability of the slope.Since most of the failure elements like limestone are concentrated,the recovery of the lower ore-body is likely to result in landslide,and subsequent filling will effectively make the stability of the slope be improved.The conclusion can be used as a reference for the design,construction and research of similar engineering.

关 键 词：充填采矿法 数值模拟 边坡 

分 类 号：TD[矿业工程]