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正确的确定露天矿爆破警戒距离不仅是一个保证人身安全的问题,而且还是一个减少对生产的影响、提高劳动生产率的问题。因此,海州矿多年来对爆破警戒距离根据生产实践不断地加以修订见表1。由表1可知爆破警戒距离在1959年10月
Correctly determining the blasting clearance of an open pit mine is not only a matter of ensuring personal safety, but also a problem of reducing the impact on production and raising labor productivity. Therefore, Haizhou mine blasting distance for many years according to production practice constantly revised Table 1. Table 1 shows the blast warning distance in October 1959