Division of Spontaneous Combustion Three-zone in Goaf of Fully Mechanized Coal Face with Big Dip and Hard Roof

摘要：

　　The risk of spontaneous combustion in goaf of fully mechanized coal face with big dip and hard roof is high,and gas monitoring is more difficult.The method of dividing spontaneous combustion three-zone by temperature rise and CO concentration in goaf was presented in this paper.Tubes and temperature probes were buried in goaf at NO.7162 fully mechanized coal face in Longdong Coal Mine to monitor the temperature and gas concentration in goaf.The regularity of temperature and gas concentration changing with the advancing face was analyzed.According to the change of temperature and CO concentration in goaf,the range of spontaneous combustion three-zone was determined and verified by oxygen concentration.The method of dividing three-zone by temperature rise and CO concentration is simple,accurate and reliable,and provides scientific basis for spontaneous combustion prevention in goaf.

关键词： Big dip and hard roof Goaf Spontaneous combustion Three-zone division

作者: Zhenhua Xie Jin Cai Yu Zhang

作者单位: Civil and Environmental Engineering Institute, University of Science and Technology Beijing, 30 Xueyuan Road Haidian District,Beijing 100083, China

会议类型: 国际会议

会议名称: 2012 International Symposium on Safety Science and Engineering in China (2012安全科学与工程国际会议)

会议地点: 北京

会议语种:英文

页码: 82-87

在线出版日期: 2012-11-07（万方平台首次上网日期，不代表论文的发表时间）