金口岭铜矿采空区对地表变形及建筑物稳定性影响  

Influence of Goaf on Surface Deformation and Building Stability in Jinkouling Copper Mine

作　　者：张赛 ZHANG Sai(Tongling Nonferrous Shares Tianmashan Gold Mining Co.,Ltd.)

机构地区：[1]铜陵有色股份天马山黄金矿业有限公司,安徽省铜陵市244000

出　　处：《现代矿业》2024年第10期189-193,共5页Modern Mining

摘　　要：地下矿山开采对地表变形及建筑物稳定性产生一定程度影响。以金口岭铜矿笔山矿为研究对象,在对矿区开采技术条件和工程地质条件进行调查的基础上,建立矿山三维数值计算模型,分析地下采空区对地表变形及地表建筑物稳定性的影响。研究结果表明,所有采空区形成后,地表最大水平位移和沉降值分别为6.0和-8.5 mm,铜都大道范围内最大水平位移和沉降值分别为1.15和1.09 mm,地表的倾斜、曲率和水平变形均小于各指标对应的限值,地表建筑物处于较为安全的状态,可为金口岭铜矿笔山矿下一步开展矿区闭坑方案研究提供理论依据。Underground mining has a certain influence on surface deformation and building stability.Taking Bishan Mine of Jinkouling Copper Mine as the research object,based on the investigation of mining technical conditions and engineering geological conditions,the three-dimensional numerical calculation model of mine is established to analyze the influence of underground goaf on surface deformation and surface building stability.The research results show that after the formation of all the goaf,the maximum horizontal displacement and settlement values of the surface are 6.0 and-8.5 mm,respectively,and the maximum horizontal displacement and settlement values within Tongdu Road are 1.15 and 1.09 mm,respectively.The inclination,curvature and horizontal deformation of the surface are all smaller than the corresponding limits of each index,indicating that the surface buildings are in a relatively safe state.It can provide theoretical basis for further research on mine closure scheme of Bishan mine in Jinkouling Copper Mine.

关 键 词：采空区 地表变形 建筑物稳定性 数值模拟 

分 类 号：TD325[矿业工程—矿井建设]