在多层薄矿脉露天开采中,采用孔内微差挤压爆破技术比原有的分层穿爆技术具有更大的伏越性,为进一步推动该项技术的向前发展,本文以昆阳磷矿的孔内微差挤压爆破生产实践为例,对上述观点进行阐述并提供点滴经验。 In the multi-layer thin veins open-pit mining, the use of holes within the micro-differential extrusion blasting technology than the original stratified through blasting technology has greater valence, in order to further promote the technology’s development, As an example, the production practice of micropore extrusion blasting in phosphate rock shows the above points and provides some experience.