古船整体打捞中端板纵梁的变形  

Deformation of Longitudinal Beam of End Plate for Integral Salvage of Ancient Ships

作　　者：周东荣[1] 朱小东[1] 魏良孟 蒋哲[1] 庄欠伟 袁一翔 张弛 袁玮皓 ZHOU Dongrong;ZHU Xiaodong;WEI Liangmeng;JIANG Zhe;ZHUANG Qianwei;YUAN Yixiang;ZHANG Chi;YUAN Weihao(Shanghai Salvage of the Ministry of Transport,Shanghai 200090,China;Shanghai Tunnel Engineering Co.,Ltd.,Shanghai 200032,China)

机构地区：[1]交通运输部上海打捞局,上海200090 [2]上海隧道工程有限公司,上海200032

出　　处：《上海交通大学学报》2023年第S01期54-59,共6页Journal of Shanghai Jiaotong University

基　　金：上海市科技创新行动计划社会发展科技攻关项目(21DZ1201102)。

摘　　要：针对古沉船整体打捞工程,利用分布式光纤传感技术替代常规的变形监测手段,在“端板-纵梁”框架整体下放过程中对纵梁和端板进行变形监测.监测结果表明:“端板-纵梁”下放全过程中,端板的变形控制在1.5 mm内,变形量可以忽略;受定位桩与“端板-纵梁”间摩擦力的影响,纵梁最大变形量为50 mm;对定位桩打磨切割可有效减小纵梁变形量,纵梁最终变形量约为35 mm.For the integral salvage project of ancient sunken ships,the distributed optical fiber sensing technology is used instead of conventional deformation monitoring methods to monitor the deformation of the longitudinal beam and end plate during the overall lowering process of the“end plate longitudinal beam”frame.The monitoring results show that during the entire process of lowering the“end plate longitudinal beam”,the deformation of the end plate is controlled within 1.5 mm,and the deformation amount can be ignored.Due to the friction between the positioning pile and the“end plate longitudinal beam”,the maximum deformation of the longitudinal beam is 50 mm.Grinding and cutting the positioning pile can effectively reduce the deformation of the longitudinal beam,and the final deformation of the longitudinal beam is about 35 mm.

关 键 词：沉船 光纤监测 整体打捞 变形监测 

分 类 号：TU391[建筑科学—结构工程]