论述了在深部矿井的沼气涌出及其井下各点一般的瓦斯平衡控制工程。采煤工作面沼气量的予测标准量是依煤层中天然气含有量所具有的特性而定。还报告了随着深度的变化煤层中的沼气含量变化的规律性。对从已采区的下或上邻近层的瓦斯湧出,依据于矿井各部的沼气含量,倾向于随着深度的增加有显著的增加。 The biogas emission in deep mines and the general gas balance control project at various points downhole are discussed. The standard amount of biogas for coal mining is determined by the properties of natural gas in the coal seam. The regularity of changes in biogas content in the coal seam as a function of depth was also reported. The gas emission from the lower or upper adjacent layers of the mining area has been increased significantly with the increase of depth according to the biogas content of each part of the mine.