摘要
通过理论分析,确定了一种常用的间接测定煤层瓦斯含量的方法,结合井下实测确定瓦斯压力与煤层底板标高之间的数值关系,推算出瓦斯含量与煤层底板标高之间的曲线关系。结合煤层坚固性系数,得出3号、4号煤层煤的瓦斯放散初速度,从而确定3号、4号煤层有突出危险性,应当采取相应预防措施。
Determined by theoretical analysis,a kind of common method of indirect determination of coal seam gas content,combined with downhole measurement to determine the gas pressure and the numerical relationship between the coal seam floor elevation,calculate the gas content and the curve of the relationship between coal floor elevation.Combined with consistence coefficient of coal seam,it is concluded that No.3,No.4coal seam gas radiation initial velocity,so as to determine the No.3,No.4coal seam outburst danger,should take corresponding preventive measures.
出处
《机械管理开发》
2016年第1期122-124,共3页
Mechanical Management and Development
关键词
瓦斯赋存
突出
坚固性系数
gas occurrence
highlight
firmness coefficient
