Study on Gas Content Critical Value for Regional Prediction in Hebi Area
Accurately defining gas content critical value of regional prediction is important directive function to improve targeted outburst prevention and reduce the cost. Using Hebi area as case study, the outburst characteristics were analyzed, and the adsorption characteristic of Ⅱ1 seam was studied, lots of gas contents and working face prediction indexes were measured and its relation was studied. The relationship among gas pressure, gas contents and desorption index of drill cuttings was studied in laboratory. The results show that the metamorphism degree of Hebi Ⅱ1 seam is high with strong adsorption ability, and it can adsorb more methane in the same gas pressure condition, eventually determine that the critical value of gas content is 9.0m3/t, which provides technical basis for mine scientific management and improving economic benefit.
coal and gas outburst gas content critical value adsorption constant adsorption characteristic
Lijuan Sun Baisheng Nie Cui Ding Caihong Zhao Zhang Qinqin Qian Li
School of Resource and Safety Engineering, China University of Mining and Technology (Beijing), Beijing 10083, China
国际会议
The First International Symposium on Mine Safety Science and Engineering (首届矿山安全科学与工程学术会议)
北京
英文
868-872
2011-10-27（万方平台首次上网日期，不代表论文的发表时间）