By using the ANSYS/LS-DYNA 3D nonlinear dynamic finite element software, the elasticity calculation model was established to analyze the generation and transmission of stress under explosive charge in 9-holes cutting patterns, yielding the stress distribution cloud atlas and stress-time curves of some typical elements of the mode in different time.
采用ANSYS非线性三维动力有限元软件,对坚硬岩石条件下九孔掏槽方式,在炸药爆炸荷载作用下应力产生、传播机理,进行了计算机数值模拟。
Study on Effect of Symmetry of Wedge-shaped Cutting Hole Angle on Cut Blasting
楔形掏槽炮孔角度对称性对掏槽效果影响研究
Study of Method of Conducting Smooth Blasting in Weak and Soft Surrounding Rocks
软弱围岩中光面爆破掏槽孔方案研究
The kibble hole arrangement optimization of tunnel digging blasting of Daanshan mine
大安山矿巷道掘进爆破掏槽孔布孔优化
Numerical Simulation Research of Charging Optimization in Spiral Cutting Blasting in Medium Deep Bore
中深孔掏槽爆破装药优化的数值模拟研究
A Study and Application of Methods of Longhole Cutting and Joint-cutting Cartridge in Shaft Excavation Blasting;
竖井中深孔掏槽和切缝药包法的研究与应用
Popularization and Application of Deep-hole Blasting Technique in Bottom Compound-term Wedge Cutting
底部复式楔形掏槽中深孔爆破技术的推广应用
Research on Size Effect of Empty Hole in Horizontal Roadway Cut Blasting & Accumulating Characteristic of Surrounding Rock Damage Caused by Frequently Blasting Vibration;
平巷掏槽爆破空孔尺寸效应及围岩频繁震动损伤累积特性研究
Application of Groove Cutting by Medium-length Hole Blasting in Gently Inclined Cracked Orebody
中深孔排炮拉槽在缓倾斜破碎矿体中的应用
sublevel undercut caving method
分段下部掏槽崩落开采
The Norwegian cut can provide more dependable advance per round than the plough cut.
挪威掏槽与楔形掏槽相比，可以提供更可靠的每次爆破的进度。
They proceeded at once to extract the interior mould, clearing out the boring of the piece.
他们立时动手掘砂模，掏清炮筒。
During recent years the seam cut has once again come into use.
近几年来，又再度使用了裂缝掏槽。
If the charge used is too large, the rock can become sintered so that the cut used is a failure.
如装药量太大，岩石就会挤死，使掏槽失败。
Application of cut blasting in trench digging technique in the middle of the stope
掏槽爆破在采场中部掘沟工艺中的应用
Discussion About Blasting Footage and Cutting Patterns of Circular Tunnel in Supper Hard Rock
圆型隧洞超硬岩爆破进尺与掏槽方式探讨
Design of Combination of Smooth Blasting and Double-wedge Cut for Roadway Excavation
双楔形掏槽方法和光面爆破技术的综合设计
Application of Combined Slotting in Driving Hard Rock Roadway
混合掏槽技术在坚硬岩石巷道掘进中的应用
The loosening holes outside the plough cut are also drilled at an angle which improves the breakage possibility.
在楔形掏槽眼外侧的扩槽眼也要有角度以改善爆破效果。