某地下矿采区测量及开采对地面影响  

The impact analysis of measuring and mining in the underground mining area

作　　者：贺跃光[1] 熊莎[1] 赫天沛 

机构地区：[1]长沙理工大学交通运输工程学院,湖南长沙410004 [2]宁夏回族自治区国土测绘院,宁夏银川750021

出　　处：《测绘工程》2013年第3期44-47,共4页Engineering of Surveying and Mapping

基　　金：黑龙江省教育厅科学技术研究项目(12511467);湖南省重点学科建设项目

摘　　要：通过测量工作获得矿区井下开采平面图、矿区地表平面图及矿区井上井下对照图,根据实际测量结果,结合该矿工程地质、水文地质条件及矿山开采现状,采用三带理论计算安全开采深度,并通过分析采场顶板稳定性、护顶层厚度、矿柱稳定性判定采空区稳定性。得出该矿2号井北东部采场出现部分越界现象;个别采场高度超过设计回采最大高度,并有可能存在护顶层厚度不足的安全隐患;以及个别采场宽度超过最大无支护跨度,采场顶板存在局部失稳的安全隐患。一旦失稳有可能波及地表,对地面民房造成影响,因而需要采取防护措施。By measuring the mine floor plan of underground mining, mine surface floor plan and comparison figure of the underground mine are acquired as well as Inoue. According to the actual measurement result, combined with mine engineering geological, hydro-geological conditions and the status quo of mining, a three-band theory is adopted to calculate safety mining depth. The stability of face roof, the thickness of the top layer and pillar stability are analyzed to determine the stability of mined-out area, where the No. 2 mine meets partial cross-border phenomenon in north eastern face and of which one individual face height is more than the top layer, and individual face width exceeds the maximum non-support span meaning the security risks of local instability. Once the instability spreads to the surface and impact houses on the ground, the measures are necessarily taken.

关 键 词：开采区 稳定性 安全隐患 

分 类 号：TD175[矿业工程—矿山地质测量]