注浆加固防治底灰水技术优化

Discussion on Optimization Technology of Grouting Reinforcement Water Control in Coal Floor

同煤集团晋华宫矿井的地质条件比较复杂,煤层底板在承压水的作用下发生破裂,出现突水事故,因而需要对煤层底板进行注浆加固。通过对晋华宫矿近几年底板注浆加固工作面后仍然出现的突水事故进行调查分析,详细分析出现突水的工作面水源概况及突水原因,对注浆加固技术进行改进优化,并在实际中进行应用。结果表明,优化改进后的注浆加固技术,对工作面底板突水事故防治效果较好。

Aiming at the complex geology condition of Jinhuagong Colliery,Datong Coal Industry Group Co.,the author introduces water inrush accidents that still occurred after the grouting and reinforcement of the working face of Jinhuagong Colliery in recent years,analyzes the water source profile and the cause of the water inrush,improves and optimizes the grouting reinforcement technology,which has better prevention and control effect on water inrush accident at working face floor.