煤矿安全2012，Vol.43Issue(9)：34-36,3.
工作面宽度对采动裂隙“O”形圈发育形态的影响规律
The Influence Laws of Working Face Width on the Developmental Morphology of Mining Fissure ＂O - shaped＂ Circle
李新华 1许家林 2汪锋 2胡国忠2
作者信息
- 1. 阳煤集团（寿阳）开元矿业有限责任公司,山西寿阳045400
- 2. 煤炭资源与安全开采国家重点实验室,江苏徐州221008 中国矿业大学矿业工程学院,江苏徐州221116
- 折叠
摘要
Abstract
Taking K8206 working face of Yangquan No. 3 coal mine as engineering background. The influence laws of working face width on the developmental morphology of mining fissure ＂O - shaped＂ circles are studied by using discrete element numerical simulation software UDEC and laboratory similar simulation experiment. The simulation results show that the changes of working face width have significant impact on mining fissure ＂O - shaped＂ circle, and the width of mining fissure ＂O - shaped＂ circle will increase with the increasing of working face width under certain key stratum structual conditions. The working face width has little effect on the height of mining fissure ＂O - shaped ＂circle, and the height of mining fissure ＂O - shaped ＂circle is ended at the main key stratum of overly- ing strata when working face length changes within a certain range.关键词
工作面宽度/采动裂隙“O”形圈/发育形态/关键层Key words
working face width/mining fissure 'O - shaped' circle/developmental morphology/key stratum分类
矿业与冶金引用本文复制引用
李新华,许家林,汪锋,胡国忠..工作面宽度对采动裂隙“O”形圈发育形态的影响规律[J].煤矿安全,2012,43(9):34-36,3.
