摘要
瓦斯赋存规律反映了煤层内瓦斯含量的分布和特点,掌握该规律对矿井瓦斯的科学预测和防治有着非常积极的意义。本文根据潞宁煤矿2号煤层地勘时期的瓦斯参数和多年来矿方或科研院所井下实际测定瓦斯参数,绘制了井田内煤层瓦斯含量的等值线图。从瓦斯分布来看,2号煤层瓦斯含量由四周向井田中部的向斜轴部逐渐增大,整个井田瓦斯含量总体呈现四周低中部高,最大瓦斯含量地点出现在二三采区和二四采区之间区域。从瓦斯含量与煤层埋深的关系来看瓦斯含量随埋深的增加而增加,预测2号煤的最大瓦斯含量为4.15 m^3/t,瓦斯风化带的埋深为298 m。研究结果给潞宁煤矿深部开拓开采的瓦斯防治工作提供了可靠依据,也对邻近矿井的瓦斯治理有一定的借鉴作用。
Gas occurrence regularity reflects the distribution and characteristics of the gas content in the coal seam. Grasping the regularity has a very positive significance for the scientific prediction and prevention of mine gas. According to the gas parameters of geological survey and the ones measured by the mine or scientific research institute for many years of the coal seam in Luning coal mine, the contour map of gas content in the coal seam is drawn in the paper. From the gas distribution, the gas content of 2# coal seam increases gradually from all around to the synclinal axis of the coal mine central part. The gas content of the whole field appears low all around and high in the center, and the maximum gas content appears between the two -three mining ar- ea and two -four mining area. From the relationship between gas content and coal seam burial depth, the gas content increases with the increase of burial depth. The maximum gas content of 2# coal seam is predicted to be 4. 15m3/t, and the depth of gas weathering zone is 298m. The results provide reliable basis for gas prevention and control in deep mining of Luning coal mine, and also have reference effect for gas control of adjacent mine.
出处
《华北科技学院学报》
2016年第6期1-7,共7页
Journal of North China Institute of Science and Technology
关键词
瓦斯含量
埋深
瓦斯赋存规律
瓦斯防治
gas content
burial depth
gas occurrence regularity
gas prevention and control
