The feasibility of middle_ deep hole blasting in roadway is discussed from present blasting apparatus, blasting technology and work way and the necessity of lifting excavation efficiency velocity and suitability.
英
美
- 從目前的爆破器材、破技術(shù)和作業(yè)方式等方面論述了平巷中深孔爆破的可行性,以及它對提高掘進(jìn)工效、度,適應機械化作業(yè)線(xiàn)施工的必要性。
