桃园煤矿II 1042工作面煤层底板注浆量与富水性研究

Study on the Amount of Coal Floor Grouting and Water Enrichment in II 1042 Working Face at Taoyuan Colliery

桃园煤矿II 4采区主要充水含水层为二叠系主采煤层顶、底板砂岩裂隙含水层,以煤层底板注浆组钻孔数据为基础,研究煤层底板注浆量与富水性的规律。结果表明:II 4采区注浆量大的主要原因是灰岩溶隙、裂隙发育,水力联系畅通,注浆量大的区域与漏失点多、漏失量大的区域一致。

Taoyuan coal mine II 4 main water filling mining aquifer for Permian extracting seam roof and floor sandstone fissure aquifer, based on the coal floor grouting group of borehole data, studies the law of coal floor grouting volume and water content. The results show that the grouting II 4 mining area is the main reason of the large amount of ash karst gap, fracture, the hydraulic connection unimpeded, grouting quantity more than large area and the leakage points, a large quantity of leakage area.