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- hole blasting design 数值模拟
- 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。
- 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。
- 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。
- The millisecond blasting method with long-delay out-of-hole and short-delay in-hole detonators and one-through initiation was ado pted in blasting design. 设计采用孔内高段延期雷管、孔外低段延期雷管一次引爆的微差爆破。
- 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。
- Abstract: Take the quarrying of the Lagos harbor moles repairing project in Nigeria as example, this paper introduces the blasting design and construction technology. 摘 要: 以尼日利亚拉格斯防波堤修复工程石料开采为例,介绍石料开采爆破设计、施工工艺。
- The calculated results from the model were very conformable to the actual statistic results of the stope and were used to modify the blasting design of the ... 模型计算结果与采场实际统计结果十分吻合,利用该模型的计算结果对试验采场的爆破设计进行了改进,得到了令人满意的实际效果。
- To make their design rational,a knowledge based shaft drilling and blasting design expert system (SDBES) was developed using OEC,a tool for expert system. 为使其设计合理,利用专家系统工具OEC开发了立井钻眼爆破设计专家系统(SDBES)。
- The results show that the numerical simulation based on the engineering practice can be better revealing the dynamic course of fragmental rock,and helping to the blasting design. 结果表明,基于工程实践的数值模拟,能较客观地反映爆破破岩的动态过程,并为爆破设计提供理论依据。
- 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. 从目前的爆破器材、破技术和作业方式等方面论述了平巷中深孔爆破的可行性,以及它对提高掘进工效、度,适应机械化作业线施工的必要性。
- The paper analyse the mechanism of hole-bottom detonating and set forth the crushing mechanism of hole-bottom detonating in medium-length hole blasting decrease the production of big block ores. 分析了孔底起爆的作用机理,阐述了孔底起爆在上向扇形中深孔爆破中能降低大块产出的破碎机理;
- 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。
- In order to improve the blasting and increase loading efficiencey as well as to decrease mining cost,it is important to study the optimization of pattern parameters in undergroud bore hole blasting. 地下矿山中深孔爆破孔网参数优化研究对于改善爆破效果、提高铲装效率、降低采矿成本至关重要。
- This article introduces the blasting design and blasting parameters of a water tower with reinforced concrete frame in detail. It is of practical significance for the similar blasting engineering. 本文详细介绍了钢筋混凝土框架式水塔的定向拆除爆破方案及其爆破技术参数,该工程实践经验可作为类似工程的参考。
- His strength in a crisis is an ace in the hole. 临危不惧是他的看家本领。
- Sprung Hole Blasting for Bursting Triangle Ore Body 利用药壶爆破法爆除残留三角矿体
- Practice of DBS System to Chamber Blasting Design DBS系统在洞室爆破设计中的应用
- Improvement of medium-length hole blasting effect 中深孔爆破效果的改善