| 盾构隧道管片接头在内爆炸作用下的动力反应 |
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| 引用本文： | 邬玉斌,刘如山,田志敏.盾构隧道管片接头在内爆炸作用下的动力反应[J].武汉理工大学学报,2011(7):107-111,142. |
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| 作者姓名： | 邬玉斌 刘如山 田志敏 |
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| 作者单位： | 北京市劳动保护科学研究所;中国地震局工程力学研究所;总参工程兵科研四所; |
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| 基金项目： | 国家重点基础研究发展计划(973项目)(2007CB714203) |
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| 摘 要： | 为了研究盾构隧道管片接头在内爆炸作用下的动力反应特点,基于显式动力分析软件LS-DYNA程序,以典型地铁区间盾构隧道为例,建立了考虑管片-管片、管片-螺栓及管片与周围土体界面接触效应的三维计算模型,研究了盾构隧道在内爆炸冲击荷载作用下的破坏机理,揭示了管片和连接螺栓的破坏特征。计算结果表明,提高连接螺栓强度和延性可改善盾构隧道的抗爆特性。
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| 关 键 词： | 冲击荷载 盾构隧道 破坏特征 动力反应 |
Analysis on Dynamic Response of a Shield Tunnel Under Internal Explosion Loading |
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| WU Yu-bin,Liu Ru-shan,TIAN Zhi-min.Analysis on Dynamic Response of a Shield Tunnel Under Internal Explosion Loading[J].Journal of Wuhan University of Technology,2011(7):107-111,142. |
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| Authors: | WU Yu-bin Liu Ru-shan TIAN Zhi-min |
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| Affiliation: | WU Yu-bin1,Liu Ru-shan2,TIAN Zhi-min2,3(1.Beijing Municipal Institute of Labour Protection,Beijing 100054,China,2.Institute of Engineering Mechanics of the China Earthquake Administration,Harbin 150080,3.The Forth Engineer Scientific Research Institute of the Headquarters of the General Staff,Beijing 100850,China) |
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| Abstract: | In order to study the dynamic response characteristics of segment joint of shield tunnel under internal explosion loading, a three dimensional FEM model of dynamic response of a typical metro running shield tunnel is proposed.This model can simulate the contact effects of segment-segment,segment-bolt and segment-soil based on the nonlinear dynamic analysis software LS-DYNA.The failure mechanism of a shield tunnel under internal explosion loading is analyzed and the failure characteristics of segment and bol... |
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| Keywords: | shock loading shield tunnel failure characteristics dynamic response |
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