摘要
高瓦斯矿井大采高综放工作面采用"两进两回"巷道布置方式,即在工作面切眼及上下两巷一定宽度煤柱外分别平行布置一圈巷道。回采期间,外圈巷道要受到回采全程动压影响,巷道收敛变形严重,维护难度大。通过对现场实测数据进行分析,总结了巷道收敛变形规律,为采取有效的维护方式提供了参数和依据。
Application of ＂intake and back twice＂ drift layout way for high -gas coal mine with large mining height top -coal caving face, that is to cut in the face and up and down the two lane outside a certain width of coal pillars were arranged around parallel drift. During recovery, outer drift is subject to the impact of mining the whole dynamic pressure, convergence drift has serious deformation, difficult to maintain. Through on - site analysis of measured data, summed up convergence of roadway deformation, provide parameters and basis in order to take effective maintain way.
出处
《煤》
2009年第8期17-20,30,共5页
Coal
关键词
高瓦斯矿井
大采高综放
进风巷
巷道变形规律
high - gas coal mine
large mining height top - coal caving
intake airflow drift
drift deformation
