| V形刻槽爆破机理动态数值模拟分析 |
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| 引用本文： | 张玥.V形刻槽爆破机理动态数值模拟分析[J].爆破器材,2009,38(4):1-5. |
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| 作者姓名： | 张玥 |
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| 作者单位： | 广东宏大广航工程有限公司,广东广州,510280 |
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| 摘 要： | 文章以花岗岩荒料开采中的切割爆破工程实践为研究对象，为分析V形刻槽爆破成缝机理及爆破参数改变对刻槽爆破效果影，响等内容，建立了各向同性脆性材料的多刻槽孔准平面应变模型，以显式动力分析有限元程序ANSYS／LS-DYNA为模拟运算工具，详细计算了在动载作用下槽孔周围及双孔连心线上岩体的动态应力分布与变化规律，并运用断裂力学理论分析刻槽爆破动态成缝机理。
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| 关 键 词： | V形刻槽爆破 岩石爆破模型 弹性力学 断裂力学 |
Dynamic Numerical Simulation for the Mechanism of V-shaped Notch Blasting |
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| ZHANG YueGuangdong Hongda Guanghang Engeneering Co.,Ltd..Dynamic Numerical Simulation for the Mechanism of V-shaped Notch Blasting[J].Explosive Materials,2009,38(4):1-5. |
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| Authors: | ZHANG YueGuangdong Hongda Guanghang Engeneering Co Ltd |
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| Affiliation: | Guangdong Guangzhou;510280 |
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| Abstract: | In this paper,incising blasting engineering in granite row stone exploitation as the research object,in order to analyze the fracturing mechanism principles of V-shaped notch blasting and the influence of blasting parameter changing to V-shaped notch blasting effect,the elastic-plastic isotropy and multi-notched hole of plane strain model is set up.Dynamical finite element analysis software ANSYS/LS-DYNA is applied to calculate dynamic stress distribution and its change rule of rock around notched holes and... |
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| Keywords: | V-shaped notch blasting rock blasting model elastic mechanics fracture mechanics |
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