新元矿9104工作面过陷落柱注浆加固技术应用研究

Application of Grouting Reinforcement Technology for the 9104 Working Face Passing Through Collapse Column in Xinyuan Coal Mine

为了解决新元煤矿9104首采工作面受地质构造影响存在工作面底板涌水的问题,设计采用无线电波坑道透视仪对回采工作面范围内的地质构造进行定位。在井下进行钻探确定陷落柱的发育情况,在相应位置对陷落柱进行超前注浆加固,提高煤层陷落柱位置煤岩体的整体性,增强其隔水能力,有效地防止了底板突水的发生,取得了良好的治理效果。

Affected by geological structure,water inrush from floor in the 9104 first mining face of Xinyuan Coal Mine exists.In order to solve the problem,an underground radio-wave penetration instrument is designed to locate the geological structure in the mining face,the development of collapse column is determined by drilling in underground,and the collapse column is reinforced by advance grouting at given positions.In this case,the integrity of coal and rock mass is improved,and its water resistant is enhanced,which prevents water inrush from the floor effectively and obtain good results.