摘要
介绍了瓦斯含量直接快速测定工艺装备和基于瓦斯含量指标突出危险性深孔预测等方面研究所取得的新成果.利用新开发的取芯装备直接在井下取芯测定煤层瓦斯含量,取样深度超过了50 m,瓦斯含量测定时间一般不超过8 h.经过理论分析、数值模拟和现场考察对比试验结果表明:采用瓦斯含量指标预测突出危险性具有良好的敏感性,瓦斯含量指标预测突出危险在技术上是可行的.
Intruduced the new production technics and apparatus measuring gas content of coal by direct desorption method,and the new production of deep borehole outburst danger predicton by gas content.Gas content of coal was measured by new manufactured sampling apparatus at the mine.The sampling depth exceeds 50 m and the measuring time is less than 8 h.For the analysis of theory simulation and locale experiment,outburst danger prediction by gas content has good sensitivity,and it is feasible in technology for outb...
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
2007年第3期276-280,共5页
Journal of China Coal Society
基金
国家重点基础研究发展规划"973"基金资助项目(2005CB221500)
国家自然科学基金重点资助项目(2005E041503)
关键词
瓦斯含量
突出预测
取样工艺
敏感性
预测深度
gas content
outburst danger prediction
sampling technics
sensitivity
prediction depth
