Analysis of Secondary Catastrophes from Mine Fires in Tunnels

摘要：

Fires in the mine are a serious disaster for miners and safe production of coal mine. The normal operation of the ventilation system is critical to safe operation of the whole mine. Simulations were used to investigate the influence of fires on coal mine ventilation. The analysis considerod the basic conditions and possibilities of the secondary catastrophes caused by mine fires in tunnels when the ventilation tube was normal. The results show that the ventilation resistance increases during a fire with a larger increases as the fire intensity increases. The volumetric air flow rate 11~creases, but the decrease is small compared with the total volume. When fires occur, rollback flow of smoke appears. The temperature of most parts of the tunnel becomes quite high. But two factors for the combustion or explosion of mine gas, temperature and the gas concentration can not be satisfied simultaneously, so the secondary catastrophes such as gas explosion will not happen.

关键词： tunnel fire mine ventilation secondary catastrophe

作者: LI Kun YOU Changfu YANG Ruichang XU Xuchang

作者单位: Key Laboratory for Thermal Science and Power Engineering of Ministry of Education,Tsinghua University,Beijing 100084,China

会议类型: 国际会议

会议名称: The 2008 International Symposium on Safety Science and Technology(2008年安全科学技术国际会议)

会议地点: 北京

会议语种:英文

页码: 1362-1365

在线出版日期: 2008-09-24（万方平台首次上网日期，不代表论文的发表时间）