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铀矿和普通金属矿的开采方法基本相同,但由于铀矿存在放射性防护问题,因此,在通风防护方面有其特殊的要求。我国目前铀矿床90％以上是地下开采,采用充填法、空场法、长壁法、留矿法和分层崩落法等采矿方法。国外露天开采比例较大。美国1975年地下开采约占58％,露天开采约占40％,溶解开采占2％。今后我国铀矿床开采的发展方向是由地下转向露天,用大型机械开采。铀矿开采除有一般矿山都有的粉尘、炮烟、柴油机废气等有害因素外,还有各种放
Uranium mining and general mining methods are basically the same, but due to the existence of radioactive uranium mine protection issues, therefore, ventilation protection has its special requirements. At present, more than 90% of the uranium deposits in our country are underground mining, and the mining methods such as filling method, open-field method, longwall method, retention method and caving method are adopted. A large proportion of open-air mining outside. In 1975, the United States accounted for about 58% underground mining, open mining accounted for about 40%, dissolved mining accounted for 2%. In the future, the development direction of uranium deposit in our country will be turned from open ground to open air and large-scale machinery will be used for mining. Uranium mining in addition to the general mine dust, gun smoke, diesel exhaust and other harmful factors, there are a variety of release