瓦斯含量多元数据融合分析及突出临界值确定  

Multivariate data fusion analysis method of gas content and determination of outburst critical value

作　　者：单川 张亚洲 邹云龙[3,4] 覃木广 Shan Chuan;Zhang Yazhou;Zou Yunlong;Qin Muguang(CCTEG Energy Technology Development Co.,Ltd.,Tianjin 300461,China;Shanxi Tiandi Wangpo Coal Industry Co.,Ltd.,Jincheng 048000,China;State Key Laboratory of Gas Disaster Monitoring and Emergency Technology,Chongqing 400037,China;Chongqing Research Institute of China Coal Technology and Engineering Group,Chongqing 400037,China)

机构地区：[1]中煤科工能源科技发展有限公司,天津300461 [2]山西天地王坡煤业有限公司,山西晋城048000 [3]瓦斯灾害监控与应急技术国家重点实验室,重庆400037 [4]中煤科工集团重庆研究院有限公司,重庆400037

出　　处：《能源与环保》2023年第4期16-20,共5页CHINA ENERGY AND ENVIRONMENTAL PROTECTION

基　　金：重庆院自立重点项目(202001120);重庆院创新引导项目(2022YBXM48)。

摘　　要：新建矿井由于运行时间较短,对瓦斯含量和地质信息勘探较少,在煤与瓦斯突出预测中存在较大困难。以山西某矿为研究背景,利用地勘钻孔瓦斯含量、瓦斯涌出量反演瓦斯含量以及瓦斯压力正演瓦斯含量相结合的多元数据融合分析方法,对山西某矿瓦斯含量进行预测,对突出危险预测敏感指标及其临界值进行确定。采用3种方法对瓦斯含量进行多元对比分析,结果表明,山西某矿瓦斯含量符合常规瓦斯地质规律,即与标高呈正相关关系;三者数据样本稳定,使得多元数据综合预测瓦斯含量更为可靠;通过对山西某矿10号煤层瓦斯含量预测可知,百米瓦斯含量增加2.6 m^(3)/t,瓦斯风化下界为-257 m;根据邻近矿井煤与瓦斯动力参数与0.74 MPa下的瓦斯含量对比,确定瓦斯含量6 m^(3)/t为该矿发生瓦斯突出的临界值。Due to the short operating time and limited exploration of gas content and geological information in newly built mines,there were significant difficulties in predicting coal and gas outburst.The article took a certain mine in Shanxi as the experimental background,and used a multivariate data fusion analysis method that combined geological exploration drilling gas content,gas emission quantity inversion gas content,and gas pressure forward modeling gas content to predict gas content and determine sensitive indicators and critical values for outburst risk prediction in a certain mine in Shanxi.The article used three methods to conduct multivariate comparative analysis of gas content,indicating that the gas content of a certain mine in Shanxi conforms to conventional gas geological laws,which was positively correlated with elevation.The three data samples were stable,making the comprehensive prediction of gas content more reliable with multivariate data.According to the prediction of the gas content in the No.10 coal seam of a certain mine in Shanxi,it could be seen that the gas content has increased by 2.6 m^(3)/t per hundred meters,and the lower limit of gas weathering was-257 m.According to the dynamic parameters of coal and gas in the adjacent mine were compared with the gas content under 0.74 MPa,so that the critical value of gas outburst content was determined as 6 m^(3)/t.

关 键 词：煤层 瓦斯含量 多元数据 瓦斯突出 临界值 

分 类 号：TD712[矿业工程—矿井通风与安全]