【摘要】 在介绍龙永煤田地质概况的基础上,分析了矿区瓦斯涌出特征;从煤层顶、底板岩性特征、地质构造、煤层埋藏深度和地下水等方面分析了影响瓦斯赋存的地质因素,对可能出现高瓦斯的井田(块段)或矿井进行了预测.更多还原

【Abstract】 According to a recent survey with gas?geological method in Longyong coalfield,characteristics of gas emission and gas?geological factors in gas occurrence are discussed.It analyses the petrologic features in roof and floor racks of coal layer,geoloical structure,the depth of coal occurrence and the ground water.The mines and regions of potential gas outburst danger are forecasted.更多还原