By measuring goaf gas concentration distribution in 3205 working face of Taopinggou coal mine, we initially identified gas concentration distribution rules in coaf of room and pillar working face, therefore provided scientific basis to prevent and cure ga
By measuring goaf gas concentration distribution in 3205 working face of Taopinggou coal mine, we initially identified gas concentration distribution rules in coaf of room and pillar working face, therefore provided scientific basis to prevent and cure ga
摘要通过对桃坪沟煤矿3205回采工作面采空区瓦斯浓度分布的实际测定，初步查明了房柱式回采工作面采空区瓦斯浓度的分布规律，为今后此类工作面采空区瓦斯防治、防止采空区瓦斯事故的发生提供了科学依据。