1)Medium-length hole blasting中深孔爆破
1.Practice of reducing tight bottom block of medium-length hole blasting降低中深孔爆破大块根底的实践
2.In this paper, the application and improvement of medium-length hole blasting in Piaotang mine area are introduced, the main problems of applying medium-length hole blasting in Piaotang mine area are pointed out and analysed, and some measures of improving blasting quality are put forward.概述了漂塘矿区中深孔爆破的应用与改进,分析指出了漂塘矿区中深孔爆破中存在的主要问题,并提出了提高中深孔爆破质量的有关措施。
3.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 ;提出了在工业爆破中具体实施该技术之前应解决的问题 ,介绍了具体的操作办法 ,同时也列举了可能出现问题的注意事项。
英文短句/例句
1.On the Application of Outer-hole Blast in Medium Length Hole孔外延期爆破在中深孔爆破中的应用
2.Research on Mechanics of Charging Structure of Bottom Gas-Space in Deep-hole Blasting Engineering;中深孔爆破孔底空腔装药机理的研究
3.Application Research on Medium-length Hole Blasting in Hard Rock Drift Excavation中深孔爆破在硬岩施工中的应用研究
4.Middle-Deep Bore Blasting Experimental Study on Hard Rock Tunnel Heading硬岩巷道掘进的中深孔爆破试验研究
5.Main Factor of Affecting the Underground Medium- length Hole Dynamiting Effect影响地下中深孔爆破效果的主要因素
6.Experiment and Research on Deep Borehole Blasting in Mine Rock Roadway with Thick Soft and Weak Parting厚软弱夹层岩巷中深孔爆破试验研究
7.Research on the Optimization of Medium-length Hole Blasting Technique in Small Mines小型矿山中深孔爆破工艺的优化探索
8.Discussion on Excavation of Drift Using Medium-to-Long Hole Blasting In Xiangtan Manganese Mine湘潭锰矿推广应用中深孔爆破掘进平巷的探讨
9.Study on Underground Mining Middle-depth-hole Blasting Vibration in Chengchao Iron Mine;程潮铁矿地下开采中深孔爆破震动研究
10.A Research of Expert System about Medium-depth Holes Blasting Design of Underground Mine;地下矿山中深孔爆破设计专家系统研究
11.Underground Deep Hole Blasting Parameter Optimization in Chengchao Iron Mine程潮铁矿井下中深孔爆破参数设计优化
12.Experience on Blasting Vibration Decreasing of Mid-length Hole in Complex Environment复杂环境中深孔爆破减振措施试验研究
13.Application of Mesohole Explosive Technique at Caving Coal Face中深孔爆破技术在放顶煤工作面的应用
14.Test and Analysis on Mid-deep Hole Blasting in Zijin Collery中深孔爆破技术在紫金矿现场试验效果分析
15.Application of Smooth Blasting with Medium Deep Holes in Mine Excavation中深孔光面爆破在煤矿掘进中的应用
16.Study on Fragmentation Forecasting for Length Hole Bench Blasting;中深孔台阶爆破块度分布预测的研究
17.Middle and Deep Hole Controlled Blasting of Rock Cut in the Complicated Surroundings;复杂环境下路堑土岩中深孔控制爆破
18.Application of the Blasting Technique about Medium Depth Bore and Post Hole Joint Control中深孔与浅孔联合控制爆破技术的应用
相关短句/例句
medium-deep hole blasting中深孔爆破
1.After explosive properties and charging explosive structure are changed,for decreasing the big blasting block of medium-deep hole blasting the Houzhuang mine destrict of Jinling iron mine has taken some steps,for example to increase properly density factor value of blasting hole,etc The big block ratio is decreased from 25% to below 10金岭铁矿侯庄矿区在炸药性能和装药结构发生变化后，为减少中深孔爆破大块，采取了适当加大炮孔密集系数ｍ值，采用孔底起爆加孔内双起爆药包相向同段起爆等措施，大块率由２５％左右降低到１０％以下。
2.As a case study on slope improvement in a scrap mine,the design of medium-deep hole blasting parameter of network and safety proofreading are mainly presented,and the blasting results are analyzed.以一具体废弃矿山边坡治理为例,论述了中深孔爆破孔网参数设计、安全技术措施,并对爆破效果进行了分析,说明中深孔爆破技术在废弃矿山边坡治理中可以取得良好效果。
3)middle-deep hole blasting中深孔爆破
1.Apply "three small" technology and technology of middle-deep hole blasting to realize fast excavation in rock roadway;应用“三小”技术及中深孔爆破技术实现岩巷快速掘进
4)medium and deep hole blasting中深孔爆破
1.The traditional method of hole-location in medium and deep hole blasting were according to engineer′s rough estimation for blasting region landform by eyenaked or with some simple measures, by this mean the parameters were made out and then adjusted in practice.哈尔乌素项目部采用现代电子测绘技术与爆破技术相结合,提出一种中深孔爆破炮孔精确定位的新方法,很好地解决了这一问题。
2.The basic theories of layered charging and layered tamping and the influences of explosive specific charge on distribution of explosive rock blocks for medium and deep hole blasting are discussed.以两个装药层为例阐述中深孔爆破中分层装药分层填塞的基本原理以及炸药单耗对分层装药结构和爆岩块度的影响,并借助爆炸应力波理论和爆生气体膨胀理论分析合理进行分层装药分层填塞对于中深孔控制松动爆破爆炸效果的影响。
5)Moderate-long hole blasting中深孔爆破
1.Application of small blasting crater testing technology in moderate-long hole blasting;小型爆破漏斗试验技术在中深孔爆破中的应用
6)medium depth holes millisecond blasting中深孔微差爆破
1.The valuabe reference are provided for similar engineering of medium depth holes millisecond blasting.爆破效果表明 ,所确定的爆破方案及设计参数是有效的 ,为类似的中深孔微差爆破工程提供了有益的参
延伸阅读
深孔爆破 孔深在5m以上的钻孔爆破技术。深孔爆破具有单位钻孔量小和炸药单位耗量低、生产效率高和便于采用综合机械化施工进行爆破、 挖装、 运输作业等优点，广泛应用于露天和地下开挖工程。深孔爆破可与预裂爆破、光面爆破和毫秒爆破等技术相结合，以获得开挖面平整、围岩稳定、提高工程施工质量的效果。 进行深孔爆破，通常把开挖区按深度分成若干高为8～15m的梯段，逐梯段进行爆破，称深孔梯段爆破。在每一梯段，用潜孔钻或多臂钻车等沿开挖自由面布钻一排或数排垂直、倾斜或水平的深孔，前后排孔位可对应布置或相错成梅花形，用毫秒雷管控制进行爆破。梯段要素为：梯段高度H，前排孔底部抵抗线w1,排距即后排孔抵抗线w2,孔距α，钻孔直径d，钻孔深度L，超钻深度h，装药长度L1，孔口堵塞长度L2,梯段上缘至前排孔口距离 b，台阶坡面角度α1和钻孔角度α2等（见图）。前排钻孔超深是为了克服梯段底盘岩石的夹制作用，使爆后不残留根底。超深量可按h=(0.12～0.30)w1确定，松软岩石取小值，坚硬岩石取大值。深孔梯段爆破的每孔装药量可按下列公式计算： 前排孔 Q=qαw1H 后排孔 Q=KqαbH 式中Q为每孔装药量(kg)；q为单位耗药量(kg/m3)；K为受前排石渣阻力影响系数，取1.1～1.2；其余符号的单位均以m计。 为了克服炮孔底部所受夹制作用，大部分炸药应集中装在底部,孔口的堵塞长度一般不小于最小抵抗线,所以在确定梯段高度和抵抗线大小时，要与炮孔直径的选择相适应。
