煤矿安全2017，Vol.48Issue(6)：135-137,141,4.DOI:10.13347/j.cnki.mkaq.2017.06.036
抽采钻孔“二堵一注”带压封孔技术的研究与应用
Research and Application of "Two-sealing and One-grouting" Hole Sealing Technique with Pressure for Extraction Boreholes
谭永福1
作者信息
- 1. 黑龙江龙煤鹤岗矿业有限责任公司,黑龙江鹤岗154100
- 折叠
摘要
Abstract
The hole sealing technology is an important part for mining engineering of mine gas extraction,lax sealing and air leakage is easy to cause short circuit of drainage,low negative pressure of drilling orifices and low concentration,which directly affect the gas drainage effect.In Hegang Mining Area,affected by pressure relief zone cracks in roadway and the fractures of drilling pressure relief ring,fractures in the proximal end of the orifice are developed;adopting conventional drilling sealing technology,air tightness is poor and air leakage is obvious.In order to improve the situation,Hegang Mining Company carries out a comprehensive gas drainage technology research,uses "two-sealing and one-grouting" hole sealing technology with pressure to solve the problem of air leakage of gas drainage,and the negative pressure of drainage orifice is improved and the gas drainage concentration is increased.关键词
瓦斯抽采/封孔质量/二堵一注/带压封孔/抽采效果Key words
gas drainage/hole sealing quality/two-sealing and one-grouting/hole sealing with pressure/drainage effect分类
矿业与冶金引用本文复制引用
谭永福..抽采钻孔“二堵一注”带压封孔技术的研究与应用[J].煤矿安全,2017,48(6):135-137,141,4.
