王坡煤矿综放工作面采动覆岩破裂高度研究  

Study on fracturing height of mining overburden strata above fully-mechanized top coal caving mining face in Wangpo Mine

作　　者：刘晓刚[1,2,3] 樊少武 汪东[2,3] 程志恒[2,3,4] 张浪[2,3] 季文博 

机构地区：[1]煤炭科学研究总院开采设计研究分院,北京100013 [2]煤炭科学技术研究院有限公司安全分院,北京100013 [3]煤炭资源高效开采与洁净利用国家重点实验室(煤炭科学研究总院),北京100013 [4]中国矿业大学(北京)资源与安全工程学院,北京100083

出　　处：《煤炭科学技术》2015年第4期35-38 62,62,共5页Coal Science and Technology

基　　金：国家重点基础研究发展计划(973计划)资助项目(2011CB201206);国家科技重大专项资助项目(2011ZX05040-001)

摘　　要：为了提高王坡煤矿3号煤层综放开采断裂带瓦斯抽采效率,准确找到断裂带高度位置。以王坡煤矿3215综放工作面为例,采用数值计算方法和双端堵水法对王坡煤矿3215综放开采工作面覆岩破裂高度进行了分析及实测研究,2种方法研究结果呈现了较好的一致性。研究结果表明:3215工作面覆岩破裂高度为54~57 m,数值计算和实测结果较为真实地揭示了该工作面覆岩破裂高度情况;证明了双端堵水法的井下实测断裂带位置的可行性,可为该矿及类似条件矿井高位瓦斯抽采钻孔层位参数优化提出了技术解决方案。In order to improve the gas drainage efficiency of the mining crack zone in the fully- mechanized top coal caving mining face in No. 3 Seam of Wangpo Mine,a high location of the crack zone was accurately found. Based on No. 3215 fully- mechanized top coal caving mining face of Wangpo Mine as the engineering background,a numerical calculation method and ' double end water sealing method' were applied to the analysis and site measured Analysis on the crack height of the overburden strata above No. 3215 fully- mechanized top coal caving mining face of Wangpo Mine. The Analysis results showed a good consistency. The Analysis showed that the crack height of the overburden strata above No. 3215 fully- mechanized top coal caving mining face was 54 ~ 57 m and the numerical value and the site measured results could actually reveal the crack height condition of the overburden strata above the coal mining face. The study verified the feasibility of the ' double end water sealing method' to measure the crack location in the underground mine and could provide technical solution to optimize the high level borehole stratum in the mine as well as the mine with the similar conditions.

关 键 词：断裂带高度 UDEC数值分析 双端堵水 体积分数法 

分 类 号：TD325.4[矿业工程—矿井建设]