凿岩爆破 meaning in English

waste firing

Optimization of drilling and blasting parameters of taochong iron mine
桃冲铁矿凿岩爆破参数优化
Drilling and blasting technology for hard rocks in new inclined ventilation shaft of zhangxin mine
张新矿新斜风井坚硬岩石凿岩爆破技术
With computer imitation and laboratory physical analog as the lead and on the basis of test ore blocks and industrial blownoff - ore rock tests , study on the enlarged - structure parameters of sublevel caving in meishan iron mine was carried out , which included single tests of drilling and blasting parameters ， transition sublevels and equipment complementation . the timely popularization of this enlarging structural parameter technique has greatly improved the performances of the sublevel caving mining and promoted the technological advance of underground mining
梅山铁矿加大无底柱分段崩落法采矿结构参数研究，采用计算机仿真、实验室物理模拟为先导，试验矿块、工业放出体试验为基础，分别进行了采场凿岩爆破参数、过渡分段、设备配套等单项试验，并在全矿及时进行了推广应用，极大地改善了矿石开采过程中的各项指标，促进了地下矿山开采的技术进步。