Numerical analysis of oxidation zone variation in goaf

摘要：

A good understanding of seepage flow distribution and the situation of coal spontaneous three zones in the goaf is of great value to integrated control of coal spontaneous combustion. Based on the theory analysis of voidage and permeability coefficient of porous media in goaf, this paper sets up a seepage flow mathematical model and analyzes the air leakage flow field and oxygen concentration field of the goaf with numerical analysis software to reveal the variation law of oxidation zone with the change of wind velocity and voidage. It provides scientific basis for fire source locating and prevention of spontaneous combustion in goaf.

关键词： porous media permeability coefficient three zones numerical simulation

作者: Bo Tan Jing Shen Dongfang Zuo Xiapei Guo

作者单位: Resource and Safety Engineering Institute China University of Mining and Technology Beijing, 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: 679-684

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）