曲线顶管底幕法施工对沉船扰动的CEL数值模拟

doi:10.16183/j.cnki.jsjtu.2023.S1.01

上海交通大学学报 ›› 2023, Vol. 57 ›› Issue (S1): 60-68.doi: 10.16183/j.cnki.jsjtu.2023.S1.01

曲线顶管底幕法施工对沉船扰动的CEL数值模拟

周东荣¹, 张家铭²(), 庄欠伟⁴, 黄昕²^,³, 翟一欣⁴, 朱小东¹, 张弛⁴, 张子新²

1.交通运输部上海打捞局, 上海 200090
2.同济大学地下建筑与工程系, 上海 200092
3.新疆大学建筑工程学院, 乌鲁木齐 830047
4.上海隧道工程有限公司, 上海 200032

收稿日期:2022-07-07 修回日期:2022-07-24 接受日期:2022-08-19 出版日期:2023-10-27 发布日期:2023-11-10
通讯作者: 张家铭 E-mail:2032641@tongji.edu.cn.
作者简介:周东荣(1978-),教授级高级工程师,主要从事船舶与海洋工程的研究.
基金资助:
上海市科委社会发展领域重大项目(21DZ1201103);国家自然科学基金(52278407)

CEL Numerical Analysis of Disturbance of Constructing Curved Beam Based on “Yangtze River Estuary II” Ancient Wreck

ZHOU Dongrong¹, ZHANG Jiaming²(), ZHUANG Qianwei⁴, HUANG Xin²^,³, ZHAI Yixin⁴, ZHU Xiaodong¹, ZHANG Chi⁴, ZHANG Zixin²

1. Shanghai Salvage Ministry of Transport, Shanghai 200090, China
2. Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China
3. College of Civil Engineering and Architecture, Xinjiang University, Urumchi 830047, China
4. Shanghai Tunnel Engineering Co., Ltd., Shanghai 200032, China

Received:2022-07-07 Revised:2022-07-24 Accepted:2022-08-19 Online:2023-10-27 Published:2023-11-10
Contact: ZHANG Jiaming E-mail:2032641@tongji.edu.cn.

摘要/Abstract

摘要：

依托“长江口二号”沉船打捞工程,采用耦合欧拉-拉格朗日法对极小曲率半径矩形曲线顶管底幕法沉船打捞工程进行数值模拟分析,获得底幕施工过程中顶推力以及船体竖向位移的动态变化,并与模型试验结果进行了对比验证.结果表明:所提的数值模型模拟结果和模型试验结果吻合较好,能较精确地预测沉船的变位和顶管的顶推力变化;最后一根管节推进为最危险工况,需要加强施工控制;采用左右对称推进而非顺序推进能够有效降低施工对沉船和土体的扰动.

关键词: 曲线顶管, 沉船打捞, 数值模拟, 耦合欧拉-拉格朗日法

Abstract:

Based on the salvage project of “Yangtze River Estuary II” ancient wreck, a coupled Eluer-Lagrangian (CEL) numerical analysis was conducted for the wreck salvage project adopting the curved beam based method using rectangular curved pipe jacking with an extremely small radius of vertical curvature. The dynamic evolutions of the driving force and the vertical displacement of the wreck were obtained and compared with the results of model test. The results show that the simulation results of the established numerical model agree well with the experimental data, which could predict the variation laws of movement and the driving force of the wreck. Pipe jacking of the last beam is the most dangerous, which requires a strengthened construction control. In comparison with sequential jacking from one side to the other, the left-to-right symmetric jacking can effectively reduce the disturbance to the wreck and its surrounding ground.

Key words: curved pipe jacking, wreck salvage, numerical analysis, coupled Eluer-Lagrangian (CEL) method

中图分类号:

TU94

周东荣, 张家铭, 庄欠伟, 黄昕, 翟一欣, 朱小东, 张弛, 张子新. 曲线顶管底幕法施工对沉船扰动的CEL数值模拟[J]. 上海交通大学学报, 2023, 57(S1): 60-68.

ZHOU Dongrong, ZHANG Jiaming, ZHUANG Qianwei, HUANG Xin, ZHAI Yixin, ZHU Xiaodong, ZHANG Chi, ZHANG Zixin. CEL Numerical Analysis of Disturbance of Constructing Curved Beam Based on “Yangtze River Estuary II” Ancient Wreck[J]. Journal of Shanghai Jiao Tong University, 2023, 57(S1): 60-68.

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曲线顶管底幕法施工对沉船扰动的CEL数值模拟

CEL Numerical Analysis of Disturbance of Constructing Curved Beam Based on “Yangtze River Estuary II” Ancient Wreck

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