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贝辰加镍矿公司露天矿的爆破作业十分复杂,其原因是:岩石非常坚硬;原生裂隙导致台阶坡角变缓,且底盘抵抗线增大(达20米);水文地质条件不好(强浸水型),渗水带比比皆是;零下温度季节长(10～5
Blasting operations at the Beichenka nickel mine open pit mine are complex because of the very hard rock; the primary cracks cause the step angle to slow and the chassis resistance line to increase (up to 20 meters); hydrogeological conditions are poor (strong Flooding), water seepage abound; zero temperature season (10 ~ 5