龙口矿区瓦斯地质特征及赋存规律研究

龙口矿区是我国东部滨海矿区,主要开采新生代古近纪煤层。生产实践表明,龙口矿区总体瓦斯含量低,但矿区内各矿井开采过程中普遍存在采空区瓦斯含量相对较高的现象。本文在分析矿区地质构造和瓦斯地质特征的基础上,系统总结了瓦斯赋存规律及其主要控制因素,对矿区内各主要矿井瓦斯含量和危险性进行了初步评价,对矿区安全生产具有一定的指导作用。

RESEARCH ON THE GEOLOGICAL CHARACTERISTICS AND EXISTING LAWS OF GAS IN LONGKOU COAL MINING AREA

Longkou coal mining area is one of the few mining areas around the east sea line,which is focus on E coal measures.It is indicated by production practice that the main coal seam of Longkou coal mining area contains a low content of gas,but the excavated spaces always contain high content of gas in various coal mines.In this paper,based on analysis of the geological structures and gas geological characteristics,the existing laws of coal gas and their control factors have been summarized systematically,and the distribution of coal gas in different coal mines and their hazard have been assessed,which have important instruction for security production for coal mines.