1) hole reaming
扩腔
1.
Using the shock wave theory, the authors discnss the effect of shock wave on hole reaming and fragment area during cylindrical charge blasting.
运用冲击波理论 ,讨论了柱状药包爆破时冲击波对炮孔的扩腔作用和形成的压碎圈大小 ,分析结果表明 ,影响压碎圈半径的主要因素是炮孔尺寸、炸药性质和岩石性质 ,冲击波的扩腔作用主要与炮孔直径和压缩圈半径有关。
2) expansion of blast cavity
爆腔扩展
1.
Experimental research on the expansion of blast cavity of de-coupling charge in coal;
煤体不偶合装药爆腔扩展过程
3) expanding cavity in slant well
斜井扩腔
4) springing blast
爆炸扩腔
1.
In this paper, the radius formulae of crushing zone and final chamber in a stemmed and coupling charge springing blasting have been derived according to the springing mechanism, the numerical simulations by LS DYNA 2D software are proved to agree with the results of the theoretical calculations.
从岩石的冲击压缩破坏机理出发 ,分析探讨了封闭条件下耦合装药爆炸扩腔的半径 ,并利用DYNA- 2 D有限元程序对软质板岩的耦合装药爆扩进行了数值模拟。
2.
Such research findings show that LS-DYNA 2D software can be made available for design and optimization of the parameters of springing blasting.
利用DYNA-2D有限元程序对敞口条件下岩石中的爆炸扩腔过程进行了模拟,与实际药壶爆破施工的扩腔条件相近,因此对爆破施工有非常重要的指导意义,完全可以用于深孔药壶爆破的优化设计,解决生产中“爆扩药量靠经验,腔体体积难估算”的问题,减少爆扩施工中的盲目性,对药壶爆破法的推广和爆炸扩腔理论完善均有重要的价值。
3.
The numerical simulation using LS DYNA 2D software displays objectively the process of rock fragmentation and chamber evolution in dfferent conditions,which suggests the software is valuable in the design and optimization of springing blast parameters and will play its due role in the spreading and development of the spring technology.
利用DYNA 2D有限元程序对封闭条件下岩石中的爆炸扩腔过程进行模拟。
5) Intramedullary over-reaming
髓腔超扩
6) Cavern Development
溶腔扩展
1.
Numerical Simulation and 3D Visualization of Salt Cavern Development;
岩盐溶腔扩展的数值模拟及三维显示
补充资料：充扩
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