急倾斜煤层巷道放顶煤回采工艺研究  

Study on Gateway Top Caving Technology for Steep-inclined Coal Seam

作　　者：霍丙杰[1] 张宏伟[1] 耿养谋[2] 

机构地区：[1]辽宁工程技术大学资源与环境工程学院,辽宁阜新市123000 [2]北京吴华能源股份有限公司,北京102300

出　　处：《矿业研究与开发》2009年第4期8-9,49,共3页Mining Research and Development

摘　　要：对大安山煤矿+800 m东二采区14槽急倾斜不稳定厚煤层,通过煤层区域地质条件分析,及现场工业性试验,确定采用巷道放顶煤采煤法回采。据煤层特征设计了采区巷道布置方案和回采工艺,确定了顶煤松动爆破工艺及参数,并用弹塑性理论分析计算了区段高度。Based on analysis on the geological conditions of the 14^# coal seam which is thick, steep- inclined and unstable, in the second winning area at ＋ 800 m, and commercial - scale field experiment, it was determined that gateway top c6al caving method is used to mine the coal seam. According to the characteristics of the coal seam, the roadway layout in the mining area and mining technology were designed, the technology and parameters of loose blasting for top coal were determined, finally, the sublevel high was calculated by elasto- plastic theory.

关 键 词：急倾斜煤层 巷道放顶煤 巷道布置 松动爆破 

分 类 号：TD323[矿业工程—矿井建设] TD353.6