露天矿深孔爆破是矿山生产的—个重要环节,直接影响矿山生产的正常与否和生产成本的高低。由于穿孔爆破工作在雨季也照常进行,而雨水流入深孔使之积水,无疑给装药爆破带来很大困 Opencast deep hole blasting is a mine production - an important part of a direct impact on mine production is normal or not and the level of production costs. As the perforation blasting work in the rainy season is also carried out as usual, and the rain into the deep hole so that water, no doubt to the demolition of explosives brought great difficulties