煤炭与化工2026，Vol.49Issue(3)：31-35,5.DOI:10.19286/j.cnki.cci.2026.03.007
魏家地煤矿东1104运输顺槽掘进工作面动力现象事故分析
Accident analysis of dynamic phenomenon in east 1104 transportation tunneling face of Weijiadi Mine
寇德瑞 1朱亚娟 2金辰睿 1苗在全 3李文忠3
作者信息
- 1. 兰州煤矿设计研究院有限公司,甘肃兰州 730000
- 2. 兰州石化职业技术大学,甘肃兰州 730060
- 3. 靖煤能源有限公司魏家地煤矿分公司,甘肃平川 730900
- 折叠
摘要
Abstract
In order to clarify the causes and characteristics of the dynamic phenomenon in the east 1104 transport roadway heading face of Weijiadi Coal Mine,and to provide reference for the safety of mine excavation under similar complex geological conditions,the accident was systematically analyzed based on the field monitoring data and geological data.The geological structure of the east 1104 transport trough is complex and the stress environment is harsh.It is adjacent to many goafs and is affected by multiple reverse faults.The thickness of the coal seam varies greatly and is soft and broken.On December 15,2025,in the middle shift,a roof fall and extrusion accident occurred during the face-to-face work of the working face,and the peak concentration of the T1 methane sensor reached 42.56％.Through the analysis of the accident process,dynamic phenomenon characteristics and influencing factors,it is determined that the direct causes of the accident include complex stress superposition,abnormal thickening of coal seam thickness,tectonic extrusion,insufficient stress unloading and untimely advance support.The abnormal gas emission is derived from the gas desorption of the caving coal body and the surrounding unloading coal body.The research results show that the accident is a dynamic phenomenon of abnormal gas emission caused by roof caving,which provides theoretical basis and practical guidance for the safety prevention and control of mine excavation in complex geological areas.关键词
工作面/瓦斯超限/动力现象/构造/冒顶/支护Key words
working face/gas overrun/dynamic phenomenon/structure/roof fall/supporting分类
矿业与冶金引用本文复制引用
寇德瑞,朱亚娟,金辰睿,苗在全,李文忠..魏家地煤矿东1104运输顺槽掘进工作面动力现象事故分析[J].煤炭与化工,2026,49(3):31-35,5.
