| 烟囱爆破切口角度高度数值模拟研究 |
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| 引用本文： | 夏军,周明安,丁育青. 烟囱爆破切口角度高度数值模拟研究[J]. 爆破, 2009, 26(4): 70-73. DOI: 10.3963/j.issn.1001-487X.2009.04.019 |
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| 作者姓名： | 夏军 周明安 丁育青 |
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| 作者单位： | 国防科学技术大学,长沙,410072;国防科学技术大学,长沙,410072;国防科学技术大学,长沙,410072 |
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| 摘 要： | 对砖质烟囱的倒塌过程进行了数值模拟,分析了烟囱顶点的速度和位移时程曲线,探讨了爆破切口角度、高度对烟囱定向倒塌的影响.结果表明,切口角度为200°时,烟囱倒塌所需时间短、空间小;切口高度为0.8 m时,烟囱倒塌整体转动角度小,倒塌所需空间小.
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| 关 键 词： | 数值模拟 烟囱 爆破切口 |
Numerical Simulation of Precutting's Angle and Height of Chimney Blasting |
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| XIA Jun,ZHOU Ming-an,DING Yu-qing. Numerical Simulation of Precutting's Angle and Height of Chimney Blasting[J]. Blasting, 2009, 26(4): 70-73. DOI: 10.3963/j.issn.1001-487X.2009.04.019 |
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| Authors: | XIA Jun ZHOU Ming-an DING Yu-qing |
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| Affiliation: | XIA Jun,ZHOU Ming-an,DING Yu-qing(National University of Defense , Technology,Changsha 410072,China) |
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| Abstract: | The collapse process of a brick chimney was simulated in this paper.The speed and displacement-time curves of one particle at the top of the chimney was analysised.The influence of blasting cut′s angle and height on the directional collapse of the chimney was discussed.The results show that the time of collapse is shot and the space of collapse is small giving the precutting angle 200° and the the overall rotation angle of the chimney is small and the space of collapse is small giving the precutting height 0.8 meter. |
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| Keywords: | numerical simulation chimney precutting |
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