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- step long hole blasting 台阶深孔爆破
- Blasthole deflection is an severe adverse factor when mining is carried out using large diameter long hole blasting . 在大直径深孔采矿中 ,炮孔偏斜是非常不利的因素。
- In this paper, designing and processing technique of a detonating cord of low initial capacity are presented. The detonating cord can satisfy the requirements for long hole blasting in mine. 介绍了一种低起爆能力导爆索的设计、性能及生产工艺。该产品克服了普通导爆索在露天爆破工程中的各种特殊环境和装药条件下的缺陷,能够满足矿山深孔爆破的要求。
- Way to Reduce the Large Fragment Rate in Long Hole Blasting 降低中深孔爆破落矿大块率的途径
- Exploding technology about long hole blasting in rock roadway 岩巷中深孔爆破技术
- Application of Spacing Technique in Long Hole Blasting of Openpit Bench 间隔技术在露天台阶深孔爆破中的应用
- APPLICATION OF LONG HOLE BLASTING TECHNOLOGY IN IMPROVING PRODUCTION CAPACITY OF JIADA QUARRY 深孔爆破技术在提高嘉达采石场生产能力中的应用
- Research and Application of Crushing Pit Excavation by Controlled Long Hole Blasting 深孔控制爆破开挖破碎井技术的研究及应用
- Keywords rock mass constitution face;medium and long hole blasting;line of least resistance;quasi-cratering effect; 岩体结构面;中深孔爆破;最小抵抗线;似漏斗效应;
- EARTHQUAKE EFFECT OF HIGH-LEVEL LARGE-DIAMETE R LONG HOLE BLAST IN ANQING COPPER MINE 安庆铜矿高阶段大直径深孔爆破地震效应的浅析
- long hole blasting [采矿]深孔爆破
- The blasting effect of this project prove that long hole loose millisecond controlled blasting is a new technology extraordinarily suitable for rock excavation,and worth to be widely spread. 该工程的爆破效果有力地证明了深孔松动微差控制爆破技术是非常适合岩石开挖工程的一门新技术,值得推广。
- The new method adopted roof presupporting,deep and medium hole blasting,LHD ore removal and tailings filling. 该采矿方法采用采场预控顶技术，中深孔爆破，铲运机出矿，尾砂充填。
- A supermassive black hole blasting is destroying everything in its path with a deadly beam of energy. 超大规模黑洞爆发产生的致命能量束能摧毁一切。
- Linear charge blasting at the net of highway to Zhuhai aerodrome and the hole blasting at underground stope in Gaofen mining company have been design by the expressions. 按推导的计算式设计了珠海西区机场路垭口条形药包爆破和高峰矿业有限责任公司地下采场浅孔爆破。
- The influence factors of rock fracture weak face on cut hole blasting are analysed,suit-able hole distributing method based on fracture distribution is put foreward. 分析了岩体中裂隙弱面对掏槽孔爆破的影响因素，并根据裂隙的分布情况提出相应的布孔方法和原则，对岩巷掘进施工具有实际指导意义。
- It takes some question,such as: long hole 、HTHP、solidity delay.Those instance and characteristic require cement slurry kept pumpability in a given time. 井段长、高温高压、延迟固井等情况和特点要求水泥浆在一定时期内保持可泵性。
- He bounced into the room with a springy step. 他以轻快的跑步跳进房间。
- There was a long lag in forwarding mail to us. 转寄给我们的邮件晚了很久才拿到。
- You can keep my book as long as you like. 我的书你要借多久都随你的便。
