摘要
为提高上社煤矿突出危险性预测的准确性,根据上社矿15#煤层的特点,在实验室试验的基础上,应用"四率法"对掘进工作面敏感指标及其临界值进行分析研究。研究结果:瓦斯解吸K1值和钻屑量S指标均具有敏感性,其临界值分别为0.55 m L/(g.min1/2)、6kg/m,可在瓦斯放散初速度大、瓦斯解吸指标随瓦斯压力变化明显的掘进工作面中应用。
In order to improve the accuracy of the prediction of the outburst risk in Shang- she Coal Mine, based on the characteristics of 15# coal seam, the four rate method is applied to the analysis and study of the sensitive index and the critical value of the heading face. The results show that the Ks value of gas desorption and the S index of drilling cuttings are all sensitive, and the critical values are 0.55 mL/ （ g. min1/2 ） and 6kg/m respectively, which can be used in the heading face with large initial speed of gas diffusion and gas desorption index with obvious change of gas pressure.
作者
刘兴
LIU Xing(Yangquan Shangshe Coal industry Co.,Ltd.,Yangquan 045200,China)
出处
《沈阳理工大学学报》
CAS
2018年第4期88-91,共4页
Journal of Shenyang Ligong University
关键词
敏感指标
临界值
四率法
突出预测
sensitive index
critical value
four rate method
prediction
