摘要
为了解水中悬浮隧道工程概念设计进展,进一步明确环境荷载和水中悬浮隧道(submerged floating tunnel,简称SFT)结构相互作用的动力模拟分析和模型试验研究方向,首先综述各国在SFT领域的工程研究概况,然后分别对SFT的管段、锚索动力模拟和波浪、洋流模型试验进展进行总结。结果表明:SFT的关键参M“协同浮重比”涵盖了结构张力腿锚索布置形式、倾角和浮重比与SFT水平、竖向振幅间的相互作用关系。考察综合性参量有助于研究结构自振频率、支撑系统张力水平的归一化变化规律。深水大型波浪流水池中波流耦合、流固耦合以及动水与静水结合的SFT模型试验是未来的研究方向。
In order to lean the conceptual design progress of submerged floating tunnel(SFT)and further clear the dynamic simulation analysis and research direction of model experiment for the interaction between environmental load and SFT structure,firstly,the survey of engineering researches about SFT in different countries are summarized;and then the experimental progress of SFT tube section,cable dynamics simulation,and wave and ocean current model are analyzed respectively.The analytical results show that the key parameters of SFT is the coordinated floating weight ratio,which covers the relationship among the structure tension,the configuration of leg anchor cables,the angle of inclination,the ratio of floating weight and the horizontal and vertical amplitudes of SFT.The investigation of comprehensive parameters is helpful to the study of normalized variation law of the structural natural frequency and the tension level of the bracing system.The SFT model experiment of wave flow coupling,fluid-solid coupling and dynamic water combined with hydrostatic water in large wave pools in deep water is the future research direction.
作者
蒋树屏
李勤熙
JIANG Shuping;LI Qinxi(School of Civil Engineering,Chongqing Jiaotong University,Chongqing 400074,China;China Merchants Chongqing Communication Research&Design Institute Co.,Ltd.,Chongqing 400067,China;Traffic Management Bureau of Chongqing Wansheng Economic and Technical Development District,Chongqing 400800,China)
出处
《隧道建设(中英文)》
北大核心
2018年第3期352-359,共8页
Tunnel Construction
基金
国家交通运输部重大建设科技项目(2013318740050)
重庆市研究生教育创新基金项目(CYB17130)
关键词
水中悬浮隧道
动力分析
模型试验
submerged floating tunnel(SFT)
dynamic analysis
model experiment