苏联磷灰石生产联合公司是苏联特大型独立矿山企业,既有大型露天矿,又有大型地下矿,年生产矿石5900万 t。矿山地处北极圈内,在使用溜井放矿方面积累了成功的经验,创造了一条溜井年溜放2750万 t 矿石的记录。露天矿采用高阶段排岩(沿山坡段高400～600m),还取得了安全排岩的经验。 The Soviet Union apatite production joint company is the Soviet Union’s large-scale independent mining enterprises, both large-scale surface mine, there are large underground mines, the annual production of 59 million tons of ore. Located in the Arctic Circle, the mine has accumulated successful experience in the use of chute ore draining and has created a record of rolling off 27.5 million tons of ore annually. Open-pit mines using high-stage row of rock (along the hillside section of 400 ~ 600m), but also made the experience of safety row of rocks.