摘要
本文分析了七星矿大面积采空区的漏风状况,利用渗流理论对漏风方向、漏风量等参数进行了电算,模拟了不同位置的自然发火源及火灾气体的扩散范围,最后对分析结果作了可靠性论证。
Qixing Colliery is a large colliery reconstructed from 4 small collieries with panel incline development, from which colliery annual output is 2.4Mt raw coal. Qixing Colliery is a colliery liable to spontaneous combustion, and has large goaf which is 10 km^2 in area. Air leakage among coal seams, panels and districts is a difficult problems in managing ventilation system underground, and one of main trouble threatening safety production underground. Fuxin Mining Institute co-operates with Shuangyashan Coal Administration in investigating and analysing reason formed large goaf and its harm. The paper goes into details in analysing in air leakage state in large area goaf, calculating direction of air leakage, valume of air leakage and other parameters with seepage flow theory by computer, simulating fire seats of spontaneous combustion in different places and fire gases spreading area, and testing and verifing reliability of analysing results finally.
出处
《煤炭科学技术》
CAS
北大核心
1992年第5期2-5,共4页
Coal Science and Technology
