成庄煤矿区域瓦斯地质及瓦斯涌出特征与突出危险关系研究  

Study on the relationship between gas geology,gas emission characteristics and outburst risk in Chengzhuang coal mine

作　　者：和树栋[1,2] HE Shudong(State Key Laboratory of the Gas Disaster Detecting,Preventing and Emergency Controlling,Chongqing 400037,China;China Coal Technology and Engineering Group Chongqing Research Institute,Chongqing 400037,China)

机构地区：[1]瓦斯灾害监控与应急技术国家重点实验室,重庆400037 [2]中煤科工集团重庆研究院有限公司,重庆400037

出　　处：《中国矿业》2021年第7期161-165,共5页China Mining Magazine

基　　金：国家重点研发计划项目资助(编号:2018YFC0808305)。

摘　　要：为深入研究区域瓦斯地质背景条件下瓦斯涌出特征与突出危险之间的关系,采用定性分析、实验分析、数值模拟的手段,本着瓦斯涌出特征在井下采掘空间、实验室环境下、数值模拟等工况下的相似表征,在宏观层面上统计分析成庄煤矿区域瓦斯动力灾害特征,分析区域瓦斯地质规律,得到了影响成庄煤矿区区域瓦斯动力灾害的两个主控因素是煤体结构和瓦斯赋存,然后通过现场采取煤样实验分析的手段研究了煤体结构、吸附平衡压力对瓦斯解吸特征的影响,最后通过改变软分层厚度、瓦斯压力模拟分析了其余瓦斯涌出量特征之间的关系,进而得到了与突出危险之间的关系。研究思路与结果能够对成庄煤矿井下日常瓦斯灾害隐患及灾害防控起到积极作用,更能够对采用瓦斯涌出特征进行突出危险性预测预报的研究起到指导作用。In order to further study the relationship between gas emission characteristics and outburst risk under the regional gas geological background,qualitative analysis,experimental analysis and numerical simulation are used to analyze the gas dynamic disaster characteristics of Chengzhuang coal mine on the macro level based on the similar representation of gas emission characteristics in underground mining space,laboratory environment,numerical simulation and other working conditions.Based on the analysis of the regional gas geological law,two main factors influencing the regional gas dynamic disaster in Chengzhuang mining area are coal structure and gas occurrence.Then,the influence of coal structure and adsorption equilibrium pressure on gas desorption characteristics is studied by means of field coal sample experiment analysis.Finally,the remaining gas emission characteristics are analyzed by changing the thickness of soft layer and gas pressure simulation.The relationship between the symptoms and the prominent danger is obtained.The research ideas and results can play a positive role in the daily hidden danger of gas disaster and disaster prevention and control in Chengzhuang coal mine,and can also play a guiding role in the research of outburst risk prediction using gas emission characteristics.

关 键 词：区域瓦斯地质 规律分析 瓦斯涌出 突出危险 关联关系 

分 类 号：TD713[矿业工程—矿井通风与安全]