摘要
为了研究演马庄矿井瓦斯赋存地质规律,采用瓦斯赋存构造逐级控制理论,研究了矿区地质构造控气特征,提出构造分区控制瓦斯分区的瓦斯分布特征;基于矿井地质构造特征,定性、定量分析了影响矿井瓦斯赋存的主要地质因素,预测了瓦斯含量、涌出量,编制了矿井瓦斯地质图。结果表明:井田具有张裂隙延展方向总体为NE向、NNE向展布的马坊泉断层为分划性断层,富水性强的L8灰岩为瓦斯运移的主要通道,构造煤主要分布于煤层的顶板的瓦斯赋存地质规律。
In order to master the regularity of the gas occurrence in Yanmazhuang Mine,gas containing characteristics of the geological structure in the mining area is studied by using the structure steady control theory for gas occurrence;gas distribution characteristics of structural zoning controlling gas zoning are put forward.Based on the tectonic setting characteristics of the mine,main geological factors affecting gas occurrence in the mine are qualitatively and quantitatively analyzed.The bearing capacity and emission of gas are predicted and mine gas geological map is compiled.The results suggest the following gas geological law： the extension of the tension crack of the coalfield is in NE direction on the whole,while the Mafangquan fault extending at NNE direction is decisive fault for geological demarcation,watery L8 limestone is the primary channel for gas migration,and deformed soft coal mainly distributes near the coal seam roof.
出处
《中国煤炭》
北大核心
2010年第8期83-86,共4页
China Coal
关键词
矿井瓦斯
瓦斯赋存
地质规律
构造控制
控气特征
mine gas
gas occurrence
geological regularity
structural control
gas controlling characteristics
