西安科技大学学报2017，Vol.37Issue(5)：623-629,7.DOI:10.13800/j.cnki.xakjdxxb.2017.0504
瓦斯抽采钻孔封孔质量检测技术与应用
Gas extraction drilling hole sealing quality detection technology and application
摘要
Abstract
Mine gas is one of the important factors threatening the safe production of coal mines,while improving the efficiency of coal mine gas extraction is an important means to secure the safe production of coal mines.Therefore,it is very important to check the sealing quality and gas leak position of the sealing section of gas extraction drill-holes.Field tests have been conducted on N1101 return airway in YuWu coal mine in Shanxi Province,and drill-hole sealing gas leak detection devices have been used to measure the parameters such as gas concentration,extraction negative pressure at different measurement points and determine the gas leak conditions of the control area of corresponding measurement points by detecting the different depths of extraction drill-holes at the normal negative pressure of extraction drillholes.The results show that there is only slight change in gas concentration with less gas leaking channels and better sealing quality within the range of 16 m drill-holes,while there is gas leakage in the range of 16 ～ 23 m.The existing sealing process and materials can provide good sealing quality with better sealing effect.The quality inspection methods and devices of extraction drill-holes provide scientific basis for improving the sealing process and parameters and upgrading the sealing quality.关键词
抽采钻孔/瓦斯/漏气位置/检测Key words
extraction borehole/gas/leak location/detection分类
矿业与冶金引用本文复制引用
张天军,宋爽,李树刚,包若羽,尚宏波..瓦斯抽采钻孔封孔质量检测技术与应用[J].西安科技大学学报,2017,37(5):623-629,7.基金项目
国家自然科学基金(51374168,51474172,51327007) （51374168,51474172,51327007）
