| 接触爆炸荷载下长江隧道的动力响应分析 |
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| 引用本文： | 刘沐宇,卢志芳. 接触爆炸荷载下长江隧道的动力响应分析[J]. 武汉理工大学学报, 2007, 29(1): 113-117 |
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| 作者姓名： | 刘沐宇 卢志芳 |
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| 作者单位： | 武汉理工大学道路桥梁与结构工程湖北省重点实验室,武汉,430070 |
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| 基金项目： | 湖北省武汉市科技攻关项目 |
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| 摘 要： | 以武汉长江隧道为工程依托,运用ANSYS/LS-DYNA软件对盾构隧道行车道板上不同孔径炸药的4种爆炸工况进行模拟计算,分析各工况荷载爆炸时盾构隧道衬砌结构底板、顶板和左右侧帮各部位的位移、加速度和最大主应力分布状况,探明了盾构隧道内接触爆炸荷载下衬砌结构的动力响应规律,找出了隧道衬砌结构最易破坏的部位。该研究可为盾构隧道抗爆设计提供理论参考。
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| 关 键 词： | 盾构隧道 位移 加速度 应力 |
| 文章编号： | 1671-4431（2007）01-0113-05 |
| 修稿时间： | 2006-10-03 |
Analysis of Dynamic Response of Yangtze River Tunnel Subjected to Contact Explosion Loading |
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| LIU Mu-yu,LU Zhi-fang. Analysis of Dynamic Response of Yangtze River Tunnel Subjected to Contact Explosion Loading[J]. Journal of Wuhan University of Technology, 2007, 29(1): 113-117 |
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| Authors: | LIU Mu-yu LU Zhi-fang |
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| Abstract: | Based on Wuhan Yangtze River tunnel,four explosion loadings on the carriageway in a shield tunnel were simulated and analyzed by using the ANSYS/LS-DYNA software.Displacement,acceleration and the greatest stress of bottom,top and lateral in a shield tunnel were calculated when different explosive loadings explode. The dynamic response rule of shield tunnel lining in explosive loadings was studied.The most vulnerable sections in shield tunnel were found.All could gave a reference to explosion-resistant design of shield tunnel. |
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| Keywords: | shield tunnel displacement acceleration stress |
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