基于瓦斯地质单元划分的瓦斯赋存规律与瓦斯治理策略  

Gas Occurrence Law and Control Strategies Based on Gas-geology Unit Division

作　　者：徐明 张新过 贾军辉 郭帅昌 贾天让[2,3] XU Ming;ZHANG Xinguo;JIA Junhui;GUO Shuaichang;JIA Tianrang(Xinqiao Coal Mine,Yongmei Group Co.,Ltd.,Henan 476600;College of Safety Science and Engineering,Henan Polytechnic University,Henan 454003;State Key Laboratory Cultivation Base for Gas Geology and Gas Control(Henan Polytechnic University),Henan 454003)

机构地区：[1]永煤集团股份有限公司新桥煤矿,河南476600 [2]河南理工大学,安全科学与工程学院,河南454003 [3]河南省瓦斯地质与瓦斯治理重点实验室-省部共建国家重点实验室培育基地(河南理工大学),河南454003

出　　处：《中国煤层气》2024年第5期38-42,共5页China Coalbed Methane

摘　　要：搞清井田瓦斯赋存规律是瓦斯治理的基础,瓦斯地质单元的划分是研究煤层瓦斯地质规律的基础。以永夏煤田新桥煤矿为例,分析了矿井地质构造与瓦斯分布特征,将井田划分为4个瓦斯地质单元;分别讨论了4个瓦斯地质单元内煤层埋深、顶板岩性和煤厚等对瓦斯赋存的影响,研究结果表明:在构造影响区以外,煤层埋藏深度是影响区内瓦斯赋存状态的主要控制因素,并进行了二2煤层瓦斯含量预测。依据矿井瓦斯地质单元及其瓦斯地质规律,制订了新桥煤矿瓦斯精准防治策略。Understanding the gas occurrence law in the mining field is the basis of gas control,and the division of gas-geology units is the basis of studying the geology law of coal seam.Taking Xinqiao Coal Mine in Yongxia Coalfield as an example,the geological structure and gas distribution characteristics of the coal mine are analyzed.The mining field is divided into four gas-geology units.The effects of coal seam burial depth,roof lithology,and coal thickness on gas occurrence in four gas-geology units are dis-cussed respectively.The results show that outside the tectonic influence zone,the burial depth of the coal seam is the main controlling factor affecting the gas occurrence state in the area,and the gas content of II2 Coal Seam is predicted.According to the gas-geology units and their gas geological laws,the gas pre-cise prevention and control strategy for Xinqiao Coal Mine is developed.

关 键 词：瓦斯赋存 瓦斯地质单元 低瓦斯矿井 精准防治 

分 类 号：TD7[矿业工程—矿井通风与安全]