薄基岩特厚煤层工作面提高开采上限综合研究  

Comprehensive Research on Improving Mining Limit of Coal Face of Thin Bedrock Extremely Thick Coal Seam

作　　者：鹿亮亮 邵明喜[2] 曹思文[2] 张锐[1] 刘彬 

机构地区：[1]中国矿业大学资源与地球科学学院,江苏徐州221116 [2]兖州煤业股份有限公司杨村煤矿,山东济宁272118 [3]江苏省地质矿产局第五地质大队,江苏徐州221000

出　　处：《煤炭技术》2016年第5期54-57,共4页Coal Technology

基　　金：中国博士后科学基金特别资助(2014T70669)

摘　　要：在详细分析第四系松散层上、中、下各组含水层间水位变化及底部黏土特征基础上,以杨村煤矿317工作面为地质背景,建立了3~#煤开采的工程地质模型,利用FLAC^(3D)软件模拟并求出了垮落带高度为33 m,再结合"三下"开采规程和相邻矿井的经验公式计算了留设防砂煤柱的具体高度,最终确定了该工作面的开采上限高度。Makes a detailed analysis of the Quaternary loose soils, each aquifer water level changes and characteristics on the basis of the bottom clay. By the establishment of No.3 coal mining engineering geological model and the FLAC3D software simulate and calculate the caving zone height about 33 m, which is based on 317 working face in Yangcun coal mine as the geological background. Further, combined with ＂under three ＂ mining regulations and the empirical formula from neighbouring mine, the concrete height of the sand prevention pillar is calculated. At last, the upper limit of the coal face is determined.

关 键 词：特厚煤层 防砂煤柱 开采上限 

分 类 号：TD821[矿业工程—煤矿开采]