煤矿掘进工作面瓦斯涌出规律研究

Study on the gas effuse law in dig working face of coal mine

煤矿掘进工作面瓦斯涌出一般来说只与直接源瓦斯涌出量的大小有关;而在许多矿井的生产实践中,掘进工作面瓦斯涌出量却显示出与直接源涌出量不一致的特性,常常出现瓦斯涌出异常现象。本文通过对所谓"异常现象"进行观察研究,利用瓦斯监测系统和温度计、气压计对地面的气象状况进行观测,对所获得的数据进行综合分析,找出异常涌出瓦斯的来源、影响因素等,发现瓦斯涌出曲线呈现较为规律变化;经比较发现了与大气物理参数变化的关系。从而找出了掘进工作面的瓦斯涌出规律,即与大气物理参数变化之间的关系。为矿井制定生产规划、合理安排组织生产、减少瓦斯事故、保证矿井安全生产提供参考;在安全管理方面提出有针对性地加强瓦斯检查及其它措施。

Generally, the gas effuse amonnt in dig working face in mine relates to the gas fountain quantity. However in the productive practice of mining, the gas gush quantity in dig working face is different with the gas fountain, it often shows abnormity. In this paper, we studied the abnormity of gas effuse, the parameter of the atmosphere in the earth's surface measured using the system of gas watch, thermometer and barometer. The data were analyzed and the reasons for the gas gush abnormity were searched. The law of the change of the gas gush abnormity with the atmosphere was discovered.