摘要
高瓦斯矿井回采工作面采用"两进两回"巷道布置方式,辅助切眼受到回采全程影响,巷道收敛变形严重,维护难度大。通过现场实测,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。
High gas shaft adopt＂ two enter two exit＂ way to tarranging drift, auxiliary open-off cut is affected by whole journey. The drift is constringenced and metamorphosed deeply, and it is difficult to maintain. Through scene actual measurement, we summarized the metamorphose rule. Which provided parameter and basis on effective maintenance way.
出处
《煤》
2008年第9期20-22,共3页
Coal
关键词
大采高综放
辅助切眼
巷道变形规律
mining height fully-mechanized coal winning caving roof
auxiliary open-off cut
drift deformation rule
