1979年由冶金部下达科研任务,在寿王坟铜矿研究试验高端壁无底柱分段崩落采矿方法。 该法分段高度达40m,设2～3个凿岩水平,利用爆堆通风,铲运机出矿,多进路齐次爆破,铲运机出矿。与低分段无底柱分段崩落采矿方法相比具有下述优点: 1.矿块采矿强度高,生产能力达33万吨/年,约高一倍。 2.一次爆破量大,达5万吨,可充分利用大生产能力自行设备。有利于降低损失 In 1979, the Ministry of Metallurgy issued a scientific research mission to study and test the high-wall and pillarless subsidence mining method at Shouwangfen Copper Mine. The sub-paragraph height of 40m, set 2 to 3 drilling level, the use of blasting ventilation, scraper out of ore, blasting more than the way into the road, scraper out of ore. Compared with the low-section pillarless caving mining method has the following advantages: 1. The mining strength of ore block, the production capacity of 330,000 tons / year, about doubled. 2. A large amount of blasting, up to 50,000 tons, can make full use of large production capacity of their own equipment. Will help reduce losses