“长江口二号”古沉船打捞中矩形曲线底幕法机械及构造设计关键技术  

Key Technology for Mechanical and Structural Design of Rectangular Curve Bottom Curtain Method for Salvage of“Yangtze River Estuary II”

作　　者：庄欠伟 袁玮皓 张弛 袁一翔 李炎龙 周东荣[2] ZHUANG Qianwei;YUAN Weihao;ZHANG Chi;YUAN Yixiang;LI Yanlong;ZHOU Dongrong(Shanghai Tunnel Engineering Co.,Ltd.,Shanghai 200032,China;Shanghai Salvage of the Ministry of Transport,Shanghai 200090,China)

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

出　　处：《上海交通大学学报》2023年第S01期138-144,共7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(21DZ1201104)。

摘　　要：“长江口二号”古沉船采用一种新型矩形曲线底幕法进行打捞作业,其机械及构造设计存在多方面的挑战.针对免触碰和微扰动的要求,阐述了自主研发的打捞工法配套机械及构造设计方案,包括外部框架系统的组成、行星齿轮三刀盘顶管机的机械构造及具有高止水性能的密合型弧形管节结构设计.实际应用效果表明,所研制的行星齿轮三刀盘顶管机对古沉船的扰动小,所设计的密合型弧形管节间密封性好,有效地保证了“长江口二号”古沉船及其船载文物的原生性和完整性.The salvage of“Yangtze River Estuary II”ancient wreck adopted the world’s first curved pipe basing method.There existed various challenges in the mechanical and structural design.To satisfy the demands of non-contacting and subtle disturbance,this paper elucidates the configuration of the outer frame,the mechanical design of the pipe-jacking machine with a cutterhead of tribble planetary-gear cutters,and the structure design of the closely-assembled curved beam with high water-tightness.The practical application demonstrates that the developed pipe-jacking machine has subtle disturbance to the ancient wreck,and the water-tightness between the closely-assembled planetary-gear cutters is good,both of which effectively guarantee the originality and integrity of“Yangtze River Estuary II”ancient wreck and the cultural relics it carried on.

关 键 词：曲线顶管 沉船打捞 机械设计 构造设计 

分 类 号：U455.4[建筑科学—桥梁与隧道工程]