国外有不少矿床埋藏在河流、湖泊,水库、甚至海底下,有的先经河流改道、排干湖水、有的留保安矿柱,有的采取充填措施,都被安全开采。充填采矿已用于水下各种产状的矿体。矿岩稳固性较好时,以空场法回采,随后进行充填,如果稳固性较差,则采用胶结充填采矿法回采。 Many foreign deposits are buried in rivers, lakes, reservoirs and even under the sea, and some are diverted by rivers and drained away from the lake. Some of them leave pillars in place for security and some adopt filling measures and are safely exploited. Filling mining has been used for various underwater-producing ore bodies. When the stability of the ore rock is good, it is reclaimed in the open field method and subsequently filled. If the stability is poor, the method of cementing and mining mining is adopted.