东庞矿下组煤首采面底板导水通道注浆封堵技术

Tech. of dental work against floor water flowing fractured crack at primary face of lower seam at Dongpang Coal Mine

东庞矿下组煤首采工作面在底板注浆加固中,受底板地质条件的影响,局部底板出现涌水点;通过对出水点出水成因及导水裂隙的分析,制定了安全有效的封堵技术方案,彻底封堵了底板出水点。