The relation of gas seepage and coal body damage under the true three dimension stress

摘要：

The law of gas flow is the basis of coal and gas outburst prevention and gas drainage rate increase. Thus the relation of gas seepage and coal body damage under the true three dimension stress is studied. The research results show that when volume stress is not change with the change of pore pressure the permeability of coal body change with the parabolic law. The relation of damage and permeability of coal body is established. It can be known that during load of coal body the greater the damage occur, the more the permeability of coal body after unload decrease than primary permeability of coal body.

关键词： coal body seepage damage gas

作者: LI Xiangchun NIE Baisheng LIU Fangbin Wang Guo Tian Jianwei Niu Pengpeng

作者单位: School of Resource and Safety Engineering, China University of Mining & Technology, Beijing 100083, Planning. Design & Research Institute of Coal Industry, Beijing 100011, China

会议类型: 国际会议

会议名称: The First International Symposium on Mine Safety Science and Engineering (首届矿山安全科学与工程学术会议)

会议地点: 北京

会议语种:英文

页码: 1331-1335

在线出版日期: 2011-10-27（万方平台首次上网日期，不代表论文的发表时间）