| 波浪作用下沉管隧道管段沉放过程的频域响应(英文) |
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| 引用本文： | 陈智杰,王永学,王国玉,侯勇.波浪作用下沉管隧道管段沉放过程的频域响应(英文)[J].船舶与海洋工程学报,2009,8(1):18-26. |
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| 作者姓名： | 陈智杰 王永学 王国玉 侯勇 |
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| 作者单位： | 大连理工大学,海岸和近海工程国家重点实验室,辽宁,大连,116024
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| 基金项目： | Supported by the Key Program of the National Natural Science Foundation of China under Grant No.50439010;;the Main Program of the Ministry of Education of China under Grant No.305003 |
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| 摘 要： | 大型沉管隧道管段的沉放是沉管隧道施工中的关键环节之一.为了解沉管隧道管段沉放过程中的运动特性,对双驳船施工沉放的沉管隧道管段进行了频域计算分析.基于线性波理论和三维分布源法,计算得到波浪作用下沉管管段沉放过程中的波浪荷载及频域运动响应.计算中假定驳船本身的运动较小,忽略了驳船的运动对管段运动响应的影响,缆绳作用力由静力学方法计算.计算结果表明,沉管受到的波浪荷载在靠近水面的位置较大,并随着沉管沉放深度的增加而减小;随着波浪周期的增大,沉管受到的波浪荷载先增大而后减小;沉管的运动响应一般在离水面近的位置较大,并随着沉放深度的增加而减小.
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| 关 键 词： | 沉管隧道 运动响应 频域 线性势流理论 |
Frequency responses of immersing tunnel element under wave actions |
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| Zhi-jie Chen,Yong-xue Wang,Guo-yu Wang,Yong Hou.Frequency responses of immersing tunnel element under wave actions[J].Journal of Marine Science and Application,2009,8(1):18-26. |
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| Authors: | Zhi-jie Chen Yong-xue Wang Guo-yu Wang Yong Hou |
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| Affiliation: | CHEN Zhi-jie,WANG Yong-xue,WANG Guo-yu , HOU Yong State Key Laboratory of Coastal , Offshore Engineering,Dalian University of Technology,Dalian 116024,China |
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| Abstract: | The immersion of large-scale tunnel elements is one of the most important working procedures in the construction of an underwater immersed tunnel.To investigate the dynamic characteristics of tunnel element in the process of immersion,based on the twin-barge immersing operation method,the frequency-domain analysis of the tunnel element motions under wave actions was made.The linear wave diffraction theory and the three-dimensional source distribution method were applied to calculate the wave loads and motio... |
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| Keywords: | immersed tunnel motion response frequency domain linear potential theory |
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