基于AHP-FCA的矿井煤层瓦斯灾害风险性评价  

DisasterRisk Assessment of Coal Seam Gas in Mine Based on AHP-FCA

作　　者：刘鹏 王英虎 薛涛 LIU Peng;WANG Yinghu;XUE Tao

机构地区：[1]开滦(集团)有限责任公司东欢坨矿业分公司,河北唐山064002

出　　处：《中国矿山工程》2022年第6期1-6,共6页China Mine Engineering

基　　金：中央高校基本科研业务费专项资金资助(2022YJSAQ15)。

摘　　要：针对东欢坨矿采掘深度增加、煤层瓦斯灾害风险可能增大的现实问题,通过现场测定和实验室试验获得东欢坨矿7^(#)、8^(#)、9^(#)、11^(#)、12^(#)煤层的煤体瓦斯放散初速度、煤体的坚固性系数、煤层瓦斯压力和煤层瓦斯含量等瓦斯基础参数,采用层次分析-模糊数学综合评价方法(AHP-FCA)开展了煤层瓦斯风险性评价。研究表明:依据层次分析法可以确定瓦斯突出危险性评价指标权重,得出煤层瓦斯压力对东欢坨煤层瓦斯突出灾害影响最大,建议应加强对瓦斯压力的监测与管理。结合模糊数学综合评价方法能有效对各个煤层瓦斯突出危险性进行综合评价。该评价方法能够对瓦斯危险性进行定量化描述,直观地反映煤层危险程度。东欢坨煤矿各煤层瓦斯突出危险性均处于较轻程度范围内,发生瓦斯灾害的可能性较低,预测结果与实际情况较为符合。In view of the actual problems of increasing mining depth and possible increase of coal seam gas disaster risk in Donghuantuo Mine,the basic gas risk evaluation of coal seam such as the initial velocity of coal gas dispersion,the solidity coefficient of coal body,coal seam gas pressure and coal seam gas content of Donghuantuo Mine 7^(#),8^(#),9^(#),11^(#)and 12^(#)coal seam was obtained through on-site measurement and laboratory tests,and the analytic-fuzzy mathematical comprehensive evaluation method(AHP-FCA)was used to carry out the coal seam gas risk evaluation.The results show that according to the analytic hierarchy method,the weight of gas outburst risk evaluation index can be determined,and it is concluded that coal seam gas pressure has the greatest impact on the gas outburst disaster in Donghuantuo coal,and it is suggested that the monitoring and management of gas pressure should be strengthened.Combined with the fuzzy mathematical comprehensive evaluation method,the comprehensive evaluation of the outburst risk of gas in each coal seam can be effectively evaluated.This evaluation method can quantitatively describe the gas hazard and visually reflect the degree of coal seam danger.The results of each coal seam showed that the outburst risk of gas in each coal seam in Donghuantuo Coal Mine was within a relatively mild range,and the possibility of gas disaster was low,and the prediction results were more consistent with the actual situation.

关 键 词：瓦斯灾害 瓦斯基础参数测定 层次分析法 模糊数学综合评价 

分 类 号：TD712.6[矿业工程—矿井通风与安全]