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- Long hole bench blasting 深孔台阶爆破
- The study shows that the shape of effective stress field of deep hole bench blasting is quasi ellipsoid and the tip effect appears at both ends. 采用三维有限元数值分析法,通过建立三维有限元计算模型,分析堵塞长度对堵塞区有效应力场的影响。
- Analysis of Selecting Spacing Factor for Front Row of Deep Hole Bench Blasting 深孔梯段爆破前排密集系数的选择分析
- The Testing Research on the Cracking Zone of Deep Hole Bench Blasting of Mixed Loading Emulsion Explosive 混装乳化炸药深孔梯段爆破破裂范围试验研究
- Keywords deep hole bench blasting,Effective stress field,,,,,photo-elastic holograph,3-D dynamic element method; 深孔台阶爆破;有效应力场;全息动光弹;三维动力有限元;
- Numerical simulation of rock remain damage characteristics under single hole bench blast 单孔台阶爆破中保留岩体损伤特征的数值模拟
- Down--hole bench Blasting 深孔台阶爆破
- 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。
- Bench blasting is the most usual type of blasting work. 梯段爆破是最常用的爆破工程之一。
- The basic charge calculations have been concentrated round bench blasting. 装药计算的重点主要放在梯段爆破上。
- 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。
- 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。
- long hole benching 深孔台阶式开采
- sublevel long hole benching 分层台阶深孔开采
- 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
- Stopping can very well be compared with bench blasting but requires considerably larger charges. 崩落则十分相似于梯段爆破，只不过所需的装药量比较大一些。
- The construction technique of deep-hole bench blasting and presplitting blasting applied for excavation of Dadingzhishan Lock engineering is described. 摘要介绍大顶子山船闸工程闸塘石方开挖中深孔梯段爆破、预裂爆破施工技术。
- 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。
- Some measures for reducing the rate of large boulder in bench blasting of open-pit are introduced in combination with bench blasting operation, dealing with blasting parameter, blasting materials etc. in Yunfu Pyrite Mine. 摘要结合云浮硫铁矿台阶爆破生产实践，从影响爆破作用的爆破参数和爆破材料等因素出发，介绍了降低台阶爆破大块率的几种途径。
- THE HIGH BENCH LONG HOLE MINING IN ANQING UNDERGROUND COPPER MINE 安庆铜矿高阶段大直径深孔采矿法实施方案
