摘要
针对塔山煤矿采高4.5 m、放煤高度10.5 m的特厚煤层,采用相似材料放煤试验和PFC3D软件对一刀一放开采时不同放煤方式(单轮顺序放煤、单轮间隔放煤、多轮间隔放煤、第一轮顺序第二轮间隔)的放煤过程进行了分析,获得特厚煤层大采高放顶煤开采的基本规律及最优的放煤方式,为大采高特厚中硬煤层放顶煤开采实践提供了指导。
A The mining height in Tashan Coal Mine is 4.5 m,the height caving coal of thick coal seam is 10.5 m,the similar material experiment and PFC3D software on a knife open mining different caving method （single wheel, single wheel spacer sequence of caving coal, coal, the first round round interval sequence of the second round interval） caving process was analyzed and the way to obtain coal thick coal seam mining basic rules and optimal high caving mining. This provide guidance for mining thick coal seam fully mechanized top coal caving mining practice.
出处
《煤炭技术》
CAS
北大核心
2017年第3期35-38,共4页
Coal Technology
基金
国家自然科学基金(51574055
51374046)
辽宁省教育厅科学研究一般项目(L2013474)
校大创项目(2016036)
关键词
大采高
特厚煤层
放煤方式
回收率
一刀一放
large mining height
extra thick coal seam
caving method
rate of recovery
one knife one caving
