Ezperimental study on the law of gas flow in coal body under action of true three dimension stress

摘要：

With the seepage equipment of the test system of gas and liquid relative permeability in coal body the law of gas flow in coal body under action of true three dimension stresses is studied. The research results show that when pore pressure is not change with the change of volume stress the permeability of coal body change with the negative index law and when volume stress is not change with the change of pore pressure the permeability of coal body change with the parabolic law. The research result have some refer ence significance for gas drainage in coal mine and coal-bed methane development.

关键词： coal body flow true three dimension stress

作者: Baisheng Nie Xueqiu He Xiangchun Li Fangbin Liu

作者单位: School of Resource and Safety Engineering, China University of Mining & Technology, Beijing 100083 , School of Resource and Safety Engineering, China University of Mining & Technology, Beijing 100083 , Planning, Design & Research Institute of Coal Industry, Beijing100011,China

会议类型: 国际会议

会议名称: 2009煤矿瓦斯灾害预防与控制国际研讨会(International Symposium on Prevention and Control of Gas Disaster in Coal Mine 2009)

会议地点: 重庆

会议语种:英文

页码: 347-352

在线出版日期: 2009-05-20（万方平台首次上网日期，不代表论文的发表时间）