潞宁矿深部煤层瓦斯抽放必要性与可行性分析

Analysis on Necessity and Feasibility of Gas Drainage for Deep Coal Seam in Luning Mine

通过对潞宁矿深部2#煤层瓦斯参数的测定、矿井瓦斯涌出量预测以及矿井瓦斯储量和可抽量的计算,根据瓦斯抽放系统建立的相关规定,进行了瓦斯抽放的必要性与可行性分析。结合实际情况分析认为,潞宁矿不具备建立地面永久瓦斯抽放系统的必要性,但因局部存在地质构造和瓦斯地质分布的不规律性等原因造成采掘工作面瓦斯涌出异常等问题,依靠通风方法难以完全解决瓦斯问题时,建立井下移动瓦斯抽放系统进行局部瓦斯抽放是有必要的。

The gas parameters of 2# coal seam in Luning Mine are measured,the gas emission is forecasted and the mine gas reserves and pumping capacity are calculated.According to the establishment of the relevant provisions for gas drainage system,the necessity and feasibility are analyzed.Based on site actuality,the author thinks that it isn＇t necessity for Luning Mine to establish a permanent gas drainage system on ground,excepting meeting abnormal gas emission problems on work face caused by geological structure and having no geological distribution regularity,and it is difficult to solve the gas problem by using the ventilation method,it is necessity to establish a moving underground gas drainage system for drawing out local gas.