露天和地下联合开采可有效地利用这两种开采工艺的特点。首先是露天矿利用地下坑道排水、转运矿石、供电、供水、供压缩空气及加强露天矿通风,等等。例如,列宁诺戈尔斯克多金属公司工业区中心的列宁诺戈尔斯克矿安德烈耶夫斯克露天采场利用汽车将矿石运至选矿厂,运输工作相当艰巨。而露天和地下联合开采,则利用地下坑道转运矿石,建立将露天采场的 Combined open-pit and underground mining can effectively exploit the characteristics of both mining processes. The first is that open pit mines use underground tunnels to drain water, transport ore, supply electricity, supply water, supply compressed air and enhance open air ventilation. For example, the open field of the Andreyevsk Mine in Leninogorsk, the Leninogorsk Mine in the industrial zone of the Leningoregorsk Polymetral Company, uses cars to transport ore to the concentrator and the transportation work is quite daunting. The joint open-air and underground mining, the use of underground tunnel transport ore, the establishment of open pit mining