斜沟煤矿采空区煤自燃“三带”分布规律研究  

Study on the distribution law of coal spontaneous combustion Three Zonesin goaf of Xiegou Coal Mine

作　　者：郭玉峰 周鑫[2] 鲁岩[2] GUO Yu-feng;ZHOU Xin;LU Yan(Shanxi Xishan Jinxing Energy Limited Liability Company,Lüliang 033602,China;China University of Mining and Technology,Xuzhou 221116,China)

机构地区：[1]山西西山晋兴能源有限责任公司,山西吕梁033602 [2]中国矿业大学,江苏徐州221116

出　　处：《煤炭科技》2021年第3期61-65,75,共6页Coal Science & Technology Magazine

基　　金：国家自然科学基金资助项目(51774280)。

摘　　要：基于斜沟煤矿18108综采放顶煤工作面的实际情况,利用FLAC3D软件对采空区松散度进行模拟,分析倾向、走向的垮落情况,计算得出采空区孔隙率分布规律,利用FLUENT软件模拟得出采空区气体流场分布规律,再经综合模拟分析,得到了斜沟煤矿采空区煤自燃"三带"分布规律,研究结果得到了现场验证。研究结果对于类似综采放顶煤工作面采空区自然发火防治工作具有指导意义。Based on the actual conditions of the 18108 fully-mechanized top coal caving face of Xiegou Coal Mine,the looseness of the mined-out area was simulated by FLAC 3D software,and the collapse of the trend and direction was analyzed,and the porosity distribution of the mined-out area was calculated.Using FLUENT software to simulate the gas flow field distribution law in the goaf,and then through comprehensive simulation analysis,the Three Zones distribution law of coal spontaneous combustion in the goaf of Xiegou Coal Mine was obtained,and the research results were verified on site.The research results had a guiding significance for the prevention and control of spontaneous combustion in the goaf of similar fully-mechanized caving face.

关 键 词：采空区 松散度 气体流场 煤自燃“三带” 分布规律 

分 类 号：TD75[矿业工程—矿井通风与安全]