| 水下钻孔爆破不同起爆方式的数值模拟 |
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| 引用本文： | 修宗祥,杨秀娟,闫相祯,冯永训.水下钻孔爆破不同起爆方式的数值模拟[J].中国港湾建设,2009(1):9-12. |
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| 作者姓名： | 修宗祥 杨秀娟 闫相祯 冯永训 |
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| 作者单位： | 1. 中国石油大学(华东)储运与建筑工程学院,山东,东营,257061
2. 胜利工程设计咨询公司,山东,东营,257061 |
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| 摘 要： | 以连续介质力学和动力非线性有限元理论为基础,推导了炸药、岩石和水的ALE控制方程,采用多物质的ALE算法模拟了实际工程水下岩石钻孔爆破装药中不同位置起爆时爆炸产生的应力波在岩石介质中的传播过程。模拟结果表明：无论以何种方式起爆,端部效应现象始终存在,都会影响水下钻孔爆破上部岩石破碎质量;岩石与水接触面处由于反射波作用,提高了岩石爆破质量;两点起爆效果比单点起爆好,距两端1/4处同时起爆药包的爆破效果最好。研究结果可为水下钻孔爆破工程应用和安全施工提供参考。
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| 关 键 词： | 水下钻孔爆破 起爆方式 数值模拟 多物质ALE算法 |
Numerical Simulation of Different Detonation Modes for Underwater Drilling Blast |
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| XIU Zong-xiang,YANG Xiu-juan,YAN Xiang-zhen,FENG Yong-xun.Numerical Simulation of Different Detonation Modes for Underwater Drilling Blast[J].China Harbour Engineering,2009(1):9-12. |
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| Authors: | XIU Zong-xiang YANG Xiu-juan YAN Xiang-zhen FENG Yong-xun |
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| Institution: | 1.College of Transport & Storage and Architectural Engineering;China University of Petroleum;Dongying;Shandong 257061;China;2.Shengli Engineering & Consulting Co.;Ltd.;China |
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| Abstract: | Based on the principles of continuum mechanics and dynamical nonlinear finite element theory,the ALE governing equations of explosives,rock and water which in the underwater bored blasting system is derived.Using multi-material Arbitrary Lagrangian Eulerian finite method,the paper simulated the propagations of stress wave in rock mass in underwater drilling blast by different detonation position in practical project.The simulation results show that no matter what ways of initiation,the end-effects will alwa... |
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| Keywords: | underwater drilling blast detonation mode numerical simulation Multi-Material ALE Algorithm |
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