煤田地质与勘探Issue(4)：59-63,5.DOI:10.3969/j.issn.1001-1986.2014.04.013
煤层底板超前注浆加固定向孔注浆工艺技术
The grouting technology of directional borehole for pre-grouting reinforcement in coal floor
摘要
Abstract
Water inrush from coal floor is one of the main disasters in mine construction and mine production, brings great risks and losses to the coal mine safe production with huge destruction, floor grouting reinforcement technology is an important measure and method for water prevention. Using directional borehole to conduct reinforcement by pre-grouting will be an important development and promotion direction of floor grouting reinforcement technology in the future. According to the characteristics of directional drilling, this paper has systematically studied selection of grouted horizon and grouting materials, grouting technology, evaluation criterion of grouting effect, grouting reinforcement technology is formed. The tests in face 11 151 of Zhaogu mine show that the grouting technology is reliable and advanced to ensure grouting and drilling, the effect of grouting reinforcement is evident, achieves the goal of reinforcement by in-advance regional grouting in working face.关键词
煤层底板/超前注浆加固/定向孔/注浆工艺技术Key words
coal floor/pre-grouting reinforcement/directional borehole/grouting technology分类
矿业与冶金引用本文复制引用
李长青,方俊,李泉新,姜文浩,张洪健..煤层底板超前注浆加固定向孔注浆工艺技术[J].煤田地质与勘探,2014,(4):59-63,5.基金项目
国家科技重大专项课题(2011ZX05041-001) （2011ZX05041-001）
