收稿日期:２０２３Ｇ０７Ｇ０７修回日期:２０２３Ｇ０７Ｇ２５录用日期:２０２３Ｇ０８Ｇ２２基金项目:上海市科技创新行动计划社会发展科技攻关项目(２１DZ１２０１１０２)作者简介:周东荣(１９７８Ｇ),教授级高级工程师,主要从事打捞及海洋工程研究;EＧmail:zdr＠coes．cn．文章编号:１００６Ｇ２４６７(２０２３)S１Ｇ００５４Ｇ０６DOI:１０．１６１８３/j．cnki．jsjtu．２０２３．S１．０５古船整体打捞中端板纵梁的变形周东荣１,朱小东１,魏良孟１,蒋哲１庄欠伟２,袁一翔２,张弛２,袁玮皓２(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)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Ｇ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Ｇ纵梁”下放全过程中,端板的变形控制在１５mm内,变形量可以忽略;受定位桩与“端板Ｇ纵梁”间摩擦力的影响,纵梁最大变形量为５０mm;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３５mm．关键词:沉船;光纤监测;整体打捞;变形监测中图分类号:TU３９１文献标志码:ADeformationofLongitudinalBeamofEndPlateforIntegralSalvageofAncientShipsZHOUDongrong１,ZHUXiaodong１,WEILiangmeng１,JIANGZhe１ZHUANGQianwei２,YUANYixiang２,ZHANGChi２,YUANWeihao２(１．ShanghaiSalvageoftheMinistryofTransport,Shanghai２０００９０,China;２．ShanghaiTunnelEngineeringCo．,Ltd．,Shanghai２０００３２,China)Abstract:Fortheintegralsalvageprojectofancientsunkenships,thedistributedopticalfibersensingtechnologyisusedinsteadofconventionaldeformationmonitoringmethodstomonitorthedeformationofthelongitudinalbeamandendplateduringtheoverallloweringprocessofthe“endplatelongitudinalbeam”frame．Themonitoringresultsshowthatduringtheentireprocessofloweringthe“endplatelongitudinalbeam”,thedeformationoftheendplateiscontrolledwithin１５mm,andthedeformationamountcanbeignored．Duetothefrictionbetweenthepositioningpileandthe“endplatelongitudinalbeam”,themaximumdeformationofthelongitudinalbeamis５０mm．Grindingandcuttingthepositioningpilecaneffectivelyreducethedeformationofthelongitudinalbeam,andthefinaldeformationofthelongitudinalb...
