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隧道建设(中英文) ›› 2022, Vol. 42 ›› Issue (S2): 273-279.DOI: 10.3973/j.issn.2096-4498.2022.S2.034

• 规划与设计 • 上一篇    下一篇

深中通道沉管钢壳船坞内二次坐墩受力验算与精度控制要求

苏宗贤1, 吴旭东1, 吴启霖1, 陈越2, 张长亮2, 杨茨祥2   

  1. 1. 保利长大工程有限公司, 广东 广州 510620 2. 深中通道管理中心, 广东 中山 528400
  • 出版日期:2022-12-30 发布日期:2023-03-24
  • 作者简介:苏宗贤(1980—),男,广东潮州人,2008年毕业于西南交通大学,桥梁与隧道工程专业,工学博士,正高级工程师,现从事隧道与地下工程技术管理与研究工作。Email: zongxian_su@163.com。

Stress Checking Calculation and Accuracy Control Requirement of Steel Shell Secondary Sitting onto Dock Piers for ShenzhenZhongshan Link Immersed Tunnel Tube

SU Zongxian1, WU Xudong1, WU Qilin1, CHEN Yue2 ZHANG Changliang2, YANG Cixiang2   

  1. (1. Poly Changda Engineering Co., Ltd., Guangzhou 510620, Guangdong, China; 2. ShenzhongZhongshan Link Administration Center, Zhongshan 528400, Guangdong, China )
  • Online:2022-12-30 Published:2023-03-24

摘要: 为保障深中通道沉管隧道管节钢壳船坞内移位二次坐墩的结构受力安全,验证混凝土浇筑工位与钢壳总拼工位分离优化方案的可行性,通过建立精细化局部钢壳有限元模型计算分析支承力在不同偏位量下对结构的影响。该方法给出了钢壳结构最不利支承部位的精细化应力计算结果,弥补了整体管节计算模型对细节部位模拟的不足。在此基础上,考虑安全富余和船舶制造操作经验,确定钢壳二次坐墩的精度控制标准,同时验证支承设计与隔仓构造设计匹配的安全性。

关键词:

深中通道, 沉管隧道, 钢壳, 二次坐墩, 精度控制, 精细化有限元, 受力验算

Abstract:

In order to guarantee the structural stress safety of the steel shell after shift and secondary sitting onto the dock piers of ShenzhenZhongshan link immersed tunnel tube, and verify the feasibility of optimization scheme of separating the concrete casting station and the steel shell assembly station, the refined local steel shell finite element model is established to calculate and analyze the influence of the support with different deviation on the structure. The method gives the refined stress calculation results of the most unfavorable supporting position of the steel shell structure, remedying for the shortage of the overall tube model in the simulation of detailed parts. On this basis, considering the safety margin and shipbuilding operation experiencethe accuracy control requirement of the steel shell secondary sitting onto the dock piers is determined, and the safety of the design matching of the support and the compartment structure is verified.

Key words: ShenzhenZhongshan link, immersed tunnel, steel shell, secondary sitting onto dock piers, accuracy control, refined finite element, stress checking calculation