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- Vertical upward hole blasting 顶孔垂直爆破
- ANALYSIS OF H-ANFO MANUFACTURAL TECHNOLOGY AND IT'S INFLUENCING FACTOR FOR VERTICAL UPWARD HOLE PNEUMATIC CHARGE 顶孔垂直压气装药用乳化铵油炸药的生产工艺及其影响因素分析
- 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。
- 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。
- Drift Flux Model for Vertical Upward Two-Phase Flow 垂直上升两相流漂移流模型研究
- 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。
- Bypasses are attached at the side of the main valve with the steam of both valves parallel, pointing vertically upward as shown below. 旁路阀与双平行阀的蒸汽,如下所示的立式标记一起附着在主阀的侧面。
- 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。
- The line of play extends vertically upwards from the ground, but does not extend beyond the hole. 击球路线从地面开始垂直向上延伸,但不能延伸到球洞以外。
- Tested and studied in this paper is the variation relationship of gas liquid two phase Strouhal number when a gas liquid two phase vortex street occurs for two types of T shaped cylinder in a vertically upward gas liquid flow. 试验研究了两种规格的T形柱体在垂直上升气液两相流中发生气液两相涡街时,气液两相斯托拉赫数的变化规律。
- His strength in a crisis is an ace in the hole. 临危不惧是他的看家本领。
- Pressure Fluctuations and Flow Regimes in Vertical Upward Multi Flow 气液固三相流中压力波动信号与流型
- MULTI-SCALE ANALYSIS OF PRESSURE FLUCTUATION IN VERTICAL UPWARD BUBBLY FLOW 垂直上升管泡状流压力波动的多尺度分析
- The vertical line meets the horizontal one here. 垂直线与水平线在此相交。
- Sprung Hole Blasting for Bursting Triangle Ore Body 利用药壶爆破法爆除残留三角矿体