急倾斜矿体矿房安全跨度与自稳时间研究  

Study on Mine Safe Span and Self-stabilization Time in Steeply Inclined Ore Body

作　　者：于少峰[1] 李公成[1] 隋永涛 姜欣欣[1] 

机构地区：[1]北京科技大学土木与环境工程学院,北京100083 [2]新疆伽师县铜辉矿业有限责任公司,新疆喀什844000

出　　处：《铜业工程》2014年第4期49-53,83,共6页Copper Engineering

基　　金：国家自然科学基金重点项目(50934002);国家自然科学基金项目(51074013);国家"十二五"科技支撑计划项目(2012BAB08B02)

摘　　要：新疆拜什塔木铜矿矿体破碎,节理裂隙较为发育,由于其自身原因与采矿方法技术参数运用不当,造成矿山生产过程中矿房垮塌,巷道变形严重等问题；为解决此种问题,在现场展开了工程地质调查；通过结构面产状调查与岩体取芯测RQD,结合矿房安全跨度理论得出该矿体的安全跨度约为4m；通过RMR岩体评价得出其值为43,岩体质量为一般,采用目前的采矿方案与技术参数,采空区稳定时间为1～3d ,难以保证矿石回采率与出矿安全性,故应对现有采矿方法进行优化。The orebody of Baishitamu Copper Mine in Sinkiang is broken, and its joint fissure is developed. Due to its own properies and improper use of technical parameters of mining method, the room collapsed and the roadway deformation was serious during the mine production process. In order to solve this problem, engineering geological survey was launched on the spot. By using structural plane occurrence investigation, calculating RQD, and combining mine safety span theory, safe span of the deposit is about 4 m. Re-sults show that the RMR rock mass evaluation is 43, and rock mass quality is ordinary. Under current mining scheme and technical pa-rameters, the gob stability time is 13 days, which can not ensure the ore recovery rate and mining safety. So the existing mining method is ought to be optimized.

关 键 词：节理裂隙 矿房垮塌 工程地质调查 安全跨度 空区稳定时间 

分 类 号：TD853[矿业工程—金属矿开采]