摘要
通过对平煤五矿己四采区己_(15)煤的坚固系数,瓦斯放散初速度,煤层瓦斯压力和含量等瓦斯基础参数的实际测定,并结合五矿己四采区瓦斯地质特征和己_(15)煤层破坏情况,采用瓦斯参数结合瓦斯地质分析法与工程类比法对平煤五矿己四采区己_(15)煤层煤与瓦斯突出危险性进行区域预测,确定己四采区己_(15)煤层在原煤瓦斯含量达到5.4m^3/t,绝对瓦斯压力0.79MPa为突出危险区的下限指标,对应煤层底板标高-600m,在标高-600m以浅为无突出危险区,-600m以深为突出危险区。
According to the prediction data of Jims coal seam of Ji4 mining area in Pingdingshan No. 5 Coal Mine, including the robust coefficient of coal and the gas basic parameters of the gas diffuse early speed, gas pressure and gas content, the paper analyzes the geological characteristics of Ji4 Mining Area, No. 5 Coal Mine and the destruction condition of JilsCoal Seam. Gas geological analysis combining gas parameters and engineering analogue method are applied to forecast the coal and gas outburst risk of Jils Coal Seam in Ji4 Mining Area. Thresholds with gas content 5.4 m^3/t and absolute gas pressure of 0. 79MPa have been identified to assess the outburst potentials of mining areas in Ji15 Coal Seam in Ji4 Mining Area of No. 5 Coal Mine, which are the area with coal seam floor elevation below 600 meters has outburst potential, and the area above 600 meters has not.
出处
《中国煤层气》
2014年第3期25-29,共5页
China Coalbed Methane
