山子涧矿床封水实践

有些开采多年的老矿山，矿床开采完了，矿床外围又发现新矿床，新矿床的开采又借用老矿床的井口，提升，排水等设施，但老矿床几十年开采形成的采掘空间，往往涌水量较大，增加了新矿床的开采成本，如何兴利除弊，对老矿床封水？沂南金矿做了大胆实践，效果很好。

Practice of sealing water in Shanzijian mineral deposit

Some new mineral deposits can be found beside the old mineral deposits,Which bad been exploited for many years and have no value to continue mining.The new mineral deposits can exploite the pitheads,elevators,draining water equipment and other facilities of the old deposits.But usually,there is a large quantity of water in the old mineral deposits because of the existing of the digging space formed during the mining in the dozens of years.This will raise cost of the exploitation of the new deposits.How can the water in the old deposits be sealed?Yinan Gold Mine Company has proactised with great courage,which brings about a gold result.