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田陈煤矿主、副井筒深度分别为507米和468米,井筒穿过第四纪冲积层,风化带砂岩和3煤顶底板砂岩,裂隙发育,含水丰富,预计井筒涌水量850～920吨/小时。采用上部冻结、基岩预注浆的施工方法。注浆设备选用300型电动水泥泵,该泵系石油固井的专用设备,泵的压力高,能满足注浆工程的要求,但是泵的排出量太大,不适应地面预注浆工艺要求。因此枣庄矿务局地质队,
Tian Chen coal mine main and auxiliary shaft depth of 507 meters and 468 meters respectively, the wellbore through the Quaternary alluvial layer, weathered belt sandstone and 3 coal roof and floor sandstone, fracture development, rich in water is expected well bore water inflow 850 ~ 920 tons / hour. Using the upper part of the freezing, bedrock pre-grouting construction methods. Grouting equipment selection 300 electric cement pump, the pump is a cementing equipment, high pressure pump to meet the requirements of grouting project, but the pump discharge is too large, do not meet the ground pre-grouting process requirements. Therefore, Zaozhuang Mines geological team,