Rheological Analysis of Preventing Coal and Gas Outburst for Excavation Coal Face

摘要：

According to the rheological theory and the hardening or softening effect on the creep process of coal containing gas, the three creep stages of coal containing gas is analyzed. The basic principle of controlling the catastrophic creep failure is theoretically proposed. Based on the stress-strain curve of the coal containing gas, the hardening or softening effect of non-equilibrium gas is discussed in the creep process. On the basis of these, the relationship between the creep process of coal in the front of mining face and the coal and gas outburst is studied. From the view of transformation of energy of outburst, energy dissipation balance equation of coal in the rheological process of coal is established, and the principle of preventing coal and gas outburst is also proposed.

关键词： time effect rheology of coal containing gas creep characteristics excavation coal face coal and gas outburst

作者: WANG Yungang LIU Yanwei WEI Jianping LIU Mingju

作者单位: School of Safety Science & Engineering, Henan Polytechnic University, Jiaozuo 454003, Henan, China

会议类型: 国际会议

会议名称: The 2010 International Symposium on Safety Science and Technology(2010 安全科学与技术国际会议)

会议地点: 杭州

会议语种:英文

页码: 1651-1655

在线出版日期: 2010-10-26（万方平台首次上网日期，不代表论文的发表时间）