摘要
采用流量法测定煤层抽采影响半径,结合实测数据和模拟软件,研究唐安煤矿3#煤层抽采影响半径和有效抽采半径。测定数据表明:抽采影响半径随着抽采时间增加逐渐增大,30d为3.11m,210d为3.96m;有效抽采半径随着抽采时间增加逐渐增大,30d为2.33m,210d为3.26m;实测数据与模拟数据具有较高的吻合性,测定结果可用作煤矿防突设计、日常瓦斯管理的依据,对矿井安全生产具有较强的实践意义。
The drainage influence radius was measured by flow method,and combined with the measured data and simulation software,the drainage influence radius and effective drainage radius of No.3 coal seam in Tang＇an Coal Mine were studied.The measurement data showed that the drainage influence radius increased with the increase of gas drainage time,when the drainage time was 30 days,it reached 3.11 m,and it reached 3.96 mafter 210 days;the effective drainage radius increased with the increase of drainage time,when the drainage time was 30 days,it reached 2.33 m,and it reached 3.26 mafter 210 days;the measured data was consistent with the simulation data,and the measurement results could be used as the basis for outburst prevention design and daily gas management of coal mines,and it was of practical significance for coal mine safety production.
作者
王忠忠
王晓丽
韩恩光
Wang Zhongzhong;Wang Xiaoli;Han Enguang(Tang＇an Coal Mine Branch Company of Shanxi Lanhua Sci-tech Venture Co.,Ltd.,Gaoping,Shanxi 048407,China;Industry and Information Technology Senior Technical School of Henan Province,Xinzheng,Henan 451199,China;College of Safety Science and Engineering,Henan Polytechnic University,Jiaozuo,Henan 454000,China)
出处
《中国煤炭》
2018年第10期158-162,共5页
China Coal
关键词
流量法
数值模拟
影响半径
有效抽采半径
抽采时间
瓦斯防治
flow method
numerical simulation
influence radius
effective drainage radius
drainage time
gas preventionand control
