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- rock control blasting 岩土控制爆破
- Cumulative explosion is a promising technology in controlled blasting of rock mass. 聚能爆破技术是岩石控制爆破技术中有待开发的领域。
- TECHAIQUES ON ROCK MASS CONTROL BLASTING 石方控制爆破技术
- Study on Chamber Control Blasting of Rock Cutting 石方路堑硐室控制爆破研究
- This Paper discusses Charge Weight of Ornamental Stone Single-SurfaceCut Control blasting and Considers that the Charge Consists of two Partsi.e. 本文论述了石材开采切割爆破中装药量的有关问题;提出切割爆破中的装药量由面装药量和体装药量两个部分来计算;
- With the measured information, the paper analyzed the surrounding rock control results of the gob-side entry driving along the coal mining face. 在实测资料基础上,分析了综放沿空留巷围岩控制效果,得出的结论对综放沿空留巷推广应用具有指导意义。
- According to a practical example,this paper introduces that controlled blasting excavates the little diameter basic stake rock. 介绍了在闹市区对多种小断面桩井采用控制爆破技术进行开挖的工程事例。
- A new idea about micro-fracture mechanism is proposed to control blasting by directional fracture in view of acting potential mechanism of molecule microstructure. 从分子微观结构的作用势理论出发,提出了定向断裂控制爆破的微观断裂机理的新观点。
- Based on the theory of fracture mechanics,the mechanism of crack-forming among shotholes in the directional split of rock by controlled blasting is expunded. 文章依据断裂力学理论,论述岩石定向断裂控制爆破炮孔间贯通裂纹形成的原理;
- In order to reduce dense radial cracks around charge and facilitate required crack in control blasting,the measures to be taken are to depress the function of blasting stress wave and increase acting time of explosion gas,i. e. 在控制爆破中,为使炮孔周围产生的较密集的径向裂纹减少,使需要扩展的裂纹得到充分扩展,主要措施就是降低爆炸应力波作用,增加爆生气体的作用时间,即采取不耦合装药。
- 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。
- Fracture control blasting, a new perimeter control technique, is an alternative to pre-splitting or smooth wall blasting which can be used to achieve better perimeter control results. 断裂控制爆破是一种新的周界控制爆破方法,用它取代预裂和光面爆破,可以获得更好的周界控制效果。
- Equations for calculation parameter of directional split of rock by controlled blasting are used to determine the hole spacing and explosive charge,it is effective and reasonable in practice. 按照切缝药包定向断裂控制爆破参数计算公式确定的炮孔间距和装药量,经现场实际应用证明是有效的和合理的。
- The influence of internal crack on rock plank ratio and the mechaism Of forming blasting internal crack are discussed and the measures of controlling blasting internal crack are proposed. 本文阐明了爆破内伤对板材率的影响以及爆破内伤形成的机理,并简述了控制爆破内伤的措施。
- Effect of bolts on surrounding rock control 锚杆对围岩控制效果分析
- The cutting blast is a main applied technique among the urban controlled blasting techniques. 在城市控制爆破技术中,切割爆破是应用的主要手段。
- roadway surrounding rock control 巷道围岩控制
- A longitudinal concrete cofferdam was demolished by way of underwater controlled blasting. 利用水下控制爆破方法拆除了大源渡河中的混凝土纵向围堰。
- Controlled blasting is the key technique of mining method and stoping technology. 控制爆破技术是采矿方法及回采工艺实施中的关键技术。
- Longhole shock controlled blasting is an important method which preventes coal andgas ouburst in tunnelling. 本论文深孔松动控制爆破的成缝机理进行了总结和分析。