三山岛金矿平里店矿区矿体为石英脉型缓倾斜薄矿脉，井下多中段开采，采矿方法为浅孔房柱法。自矿山投产至今，生产规模不断扩大，而地质储量日益不足。为了增加可采矿产资源，对采场采空区内的矿柱进行回采。经方案技术比较，采用全充填嗣后连续回采矿柱采矿法，该方法具有一次充填量大、回采安全和采矿连续进行的优点。该采矿工艺在平里店矿区进行采矿试验取得了良好效果，采场生产能力达到20 t/d，确保了平里店矿区生产的持续进行。

The orebodies in Pinglidian mining area of Sanshandao gold mine are the quartz vein type gently inclined thin veins.There are many middle rooms underground mining，and the pillar mining method is shallow hole room and pillar method.Since the mine production，the geological reserves are increasingly inadequate as the production scale expands unceasingly.To increase the exploitable mineral resources，the pillar was decided to  be re-explored in the goaf in mining field.After different scheme comparison，the mineral method of the full filling afterwards continuous re-exploitation pillar has been adopted.This method has the advantage of a large amount of filling，safety re-explored and continuous mining.The mining experiment was carried out in Pinglidian mining area used the mining technology，and has obtained a good effect.The stope production capacities reach 20 t/d，and ensure the stable mining production for Pinglidian mining area.