褶曲构造应力场对煤与瓦斯突出控制因素研究  

Research on the controlling factors of coal and gas outburst in the stress field of folded structure

作　　者：王海东 甄康哲 徐阿猛[1] 李军艺 姜琦 WANG Haidong;ZHEN Kangzhe;XU Ameng;LI Junyi;JIANG Qi(School of Safety Engineering,North China Institute of Science and Technology,Yanjiao,065201,China;Shanxi Pingshu Coal Industry,Co outburst prevention,Jinzhong,030600,China)

机构地区：[1]华北科技学院矿山安全学院,北京东燕郊065201 [2]山西平舒煤业有限公司防突部,山西晋中030600

出　　处：《华北科技学院学报》2023年第5期94-99,共6页Journal of North China Institute of Science and Technology

摘　　要：为探究褶曲构造区对煤层瓦斯赋存的控制作用,以平舒矿井为例,运用地质演化理论、实验室分析、数值模拟等手段对矿井15208掘进工作面过褶曲区段瓦斯突出影响因素进行分析,探究褶曲区瓦斯赋存规律。研究结果表明:褶曲构造区内应力分布不均,煤层坡度变化区域易出现应力集中;褶曲构造区内煤体受挤压影响,煤体裂隙分布不均匀,易于形成瓦斯富集区;褶曲构造区内的煤体变质程度高,对比非构造区煤体的孔隙结构较为发育,易于形成瓦斯流动的良好通道,有利于瓦斯的运移。In order to explore the control effect of folded structural areas on the occurrence of coal seam gas,taking Pingshu coal mine as an example,geological evolution theory,laboratory analysis,and numerical simulation are used to analyze the influencing factors of gas outburst in the folded section of the 15208 mining face,and to explore the control effect of folded areas on gas occurrence.The research results indicate that the stress distribution in the folded structure area is uneven,and the area with angle changes is prone to stress concentration.The coal body in the folded structure area is affected by compression and unevenly distributed with cracks that can be used for gas storage,making it easy to form gas enrichment areas;The coal bodies in the folded structural area have a high degree of metamorphism,and compared to non structural areas,the pore structure of the coal bodies is more developed,which is easy to form a good channel for gas flow and is conducive to gas migration.

关 键 词：瓦斯突出 瓦斯赋存 构造带 褶曲 应力 

分 类 号：TD713[矿业工程—矿井通风与安全]