在新井设计和生产井准备新水平接替时,要确定瓦斯等级。在高瓦斯矿井,要按绝对瓦斯涌出量计算风量,因此,矿井绝对瓦斯涌出量 Q_瓦是计算矿井风量和选择机电设备型号的主要依据,它关系到矿井建设的投资及电耗。由于影响 Q_瓦的因素是多方面的,所以如何取得可靠的预测值,还是一个极待需要研究的课题。 When new well design and production well ready for new level takeover, determine the gas level. Therefore, the absolute gas emission Q_W is the main basis for calculating the air volume of the mine and selecting the type of mechanical and electrical equipment, which is related to the investment in mine construction and the power consumption. As the factors that affect Q_W are manifold, how to obtain a reliable prediction is still a subject that needs further study.