• The quantity of explosives and the blast-hole spacing are dependent upon the type and structure of the rock and the diameter and depth of the blast holes.

    用药量炮眼间距取决于岩石范例和布局以及炮眼直径深度

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  • The traditional deep-hole blasting for tunnels USES pure clay to stem the blast-holes. The efficient energy availability of explosive is not high and the specific explosive consumption is large.

    传统隧道深孔爆破采用堵塞炮眼,炸药有效能量利用率炸药量大。

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  • Michael regards a big hole in the building where Christina was, but we see inside that Downey's body shielded Christina from the blast. Her finger begins to twitch.

    可望着建筑物的那个克里斯蒂娜在里面丹尼尸体爆炸冲击时挡住了克里斯蒂娜,手指骤然一动。

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  • The blast tore a six-metre (20ft) hole in the wall of the base, in the of the eastern province of Wardak.

    这个基地位于东部达克,基地的外墙一个6米的大洞

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  • This paper describes the theory, features and testing results of the air reverse circulation drilling process used in geo physical blast hole drilling.

    概述空气循环钻进工艺应用物探爆破施工原理特点及其试验应用情况。

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  • The mechanic affection on the blast hole walls is simply analysed and cracking propagation caused by shaped charge is explained in this paper.

    简单分析了爆破内爆破力学效应,阐明了聚能爆破对岩石定向破裂的控制机理。

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  • Medium and deep hole casting blast sublevel open stoping method is suggested and its suitability to the stope ground pressure is expounded.

    提出了抛掷爆破分段空场,并阐明采场地压的适应性

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  • The test results show that the technology of vertical deep hole presplitting blast is a feasible method in Shi Rengou Iron Mine.

    石人沟铁矿的试验结果表明采用垂直爆破技术在该矿一种可行方案

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  • The paper introduces the rock blasting technology and 3 kinds of blast hole distribution suitable to different rock, and its remarkable application effect in practice.

    文章介绍了针对不同矿岩条件进行的凿岩爆破工艺3典型方法,在实践中加以调整运用取得了显著成效

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  • The problems and the solution of blast furnace tuyere in the casting are introduced. Measurements on lowering gasser and needle hole is analysed.

    介绍了高炉风口铸造中遇到问题解决方法,讨论了降低气孔、针孔的工艺措施

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  • To investigate the parameters of parallel cut blast without empty holes, an advanced numerical method is used to study the explosion effect of charge in hole perpendicular to a free surface.

    为了考查直眼槽爆破参数采用数值模拟方法研究自由垂直爆炸作用问题。

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  • In addition, our experiments also indicate that the best depth of blast hole is close to shaft radius.

    此外试验表明最佳深度接近井筒半径。

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  • At present, in the design and construction of smooth blasting, considering few influence that main blast hole 'first blast damage to rock of smooth blasting parameters.

    目前光面爆破设计施工均未考虑孔先爆造成光爆层岩石损伤光面爆破参数影响

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  • This paper deals with the blasting parameters, working face blast hole patterns and the initiating system in the E-Bid section of the Furong Road Cable Tunnel Construction Project in Changsha.

    介绍长沙市芙蓉电缆隧道e标段掘进爆破参数工作面布置形式起爆方式。

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  • The results show that the blast hole diameter has little effect of the vibration level in production blasting, and the other factors should be considered in large scale delay blast design.

    结果表明,除孔径实际生产爆破振动影响不明显外,其它因素在大区微差爆破的设计都值得注意。

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  • The blast left a gaping hole in the front window and shattered a glass door, twisting and blackening its metal frame.

    爆炸窗户炸了一个玻璃门粉碎,金属框扭曲变黑。

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  • At present, tap hole drills used in blast furnace are classified as pneumatic, electric and hydraulic.

    目前高炉开铁机根据动力源可以分为气动电动、液压三种类型。

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  • The process of recovery of refractories for ladle and the application of recovery material in blast furnace tap hole clay are introduced emphatically.

    重点介绍用后钢包浇注料回收工艺回收物料高炉口炮中的应用

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  • The optimum design method and basic principles of main reducer of rotary blast hole drill are discussed, The main reducer is taken as a whole and is optimized by discrete Complex method.

    论述了牙轮钻机机构减速器优化设计方法基本原理主机构减速器作为整体进行优化,采用离散复合形算法。

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  • The results indicate that the decay coefficient of the peak value of blast wave with the distance will be reduced as the hole depth (charge length) is increased.

    计算表明,深度(装药长度)增大,爆炸应力波峰距离衰减指数减小

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  • The temperature gradient in blast hole was also measured and the temperature gradient was relative to the blast hole depth and its temperature.

    同时,进行了孔孔内温度梯度测量深度及其温度有关

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  • May operate air-track, rotary, down-the-hole or other drilling machines to drill blast holes or may direct drilling of blast holes.

    操作空气运作轨道,旋转,向下钻孔其他钻探机爆破洞或直接钻爆破洞。

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  • V-shaped notch blasting is that cutting slots with certain depth along axis -direction of the hole is determined according to the blast-crazing, and then load uncoupled charge and detonation.

    形刻爆破指在炮孔孔壁上爆破开裂方向,一定深度对称V,采用不耦合装药结构进行的一种断裂控制爆破。

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  • The single-hole casting blast experiment was conducted in lab. The formation process of blasting crater was observed and the casting velocity and its distribution rule was analyzed.

    实验室进行了单孔抛掷爆破试验观测台阶爆破漏斗形成过程分析了抛掷速度分布规律

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  • The tap hole gun mud made by our factory features high plasticity, fast drying and easy reopening and is now widely used in tap holes of large and medium blast furnaces at home.

    我厂生产的出铁口具有塑性,干结,再次开口容易等特点;目前广泛用于国内大中型高炉出铁口。

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  • The way this burner system melts metal is simply by pushing the flame exit port up against the hole in the furnace which ordinarily would hold the propane burner (or air blast on a charcoal furnace).

    这种燃烧器方式系统金属熔体火焰推出境口岸打击炉内通常举行木炭炉丙烷燃烧器。

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  • People there will be showers in the blast waigaoqia free remembers, choosing the love of search a hole in, shut up and oppose the ignorance regarding the life;

    必有踬踣疾风骤雨者,苟安者寻而居,闭塞昧一生;

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  • The temperature gradient in blast hole was also measured and the temperature gradient was relative to the blast hole depth and its tem...

    同时,进行了孔孔内温度梯度测量深度及其温度有关

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  • The temperature gradient in blast hole was also measured and the temperature gradient was relative to the blast hole depth and its tem...

    同时,进行了孔孔内温度梯度测量深度及其温度有关

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