悬浮隧道波浪作用下弹振工程分析方法研究  

Analysis methodology research of slack and snap engineering problems of submerged floating tunnel under wave action

作　　者：周卓炜 林巍 刘傲祥[1,4] 张宁川 ZHOU Zhuo-wei;LIN Wei;LIU Ao-xiang;ZHANG Ning-chuan(CCCC SFT Structural and Design Methodology Research Technical Tackling Team,Zhuhai,Guangdong 519000,China;Dalian University of Technology,Dalian,Liaoning 116024,China;CCCC Highway Consultants Co.,Ltd.,Beijing 100088,China;Dalian Yuan Kun Ocean Technology Co.,Ltd.,Dalian,Liaoning 116000,China)

机构地区：[1]中交悬浮隧道结构与设计方法研究攻关组,广东珠海519000 [2]大连理工大学,辽宁大连116024 [3]中交公路规划设计院有限公司,北京100088 [4]大连元堃海洋科技有限公司,辽宁大连116000

出　　处：《中国港湾建设》2020年第2期49-54,共6页China Harbour Engineering

摘　　要：基于以往悬浮隧道弹振问题分析方法,提出了可用于指导悬浮隧道设计的弹振验算分析思路。并且,基于既有研究给出的波浪作用下悬浮隧道运动位移解析表达式,进一步推导得到了忽略缆索垂度效应的弹振判断式,用于悬浮隧道设计起步时最小净浮力或浮重比的初始取值,并指导缆索布置方案的比选。Based on the previous analysis methods of slack and snap problem of submerged floating tunnel,an analysis thought of slack and snap checking calculation which can be used to guide the design of submerged floating tunnel was put forward.Further,based on the analytical solution of motion displacement of submerged floating tunnel tube from exiting study,the formula of calculating the critical value of slack and snap of lines was further derived;the formula can be used to give an initial guess on residual buoyancy or buoyancy-weight ratio for the start of design of submerged floating tunnel and to guide the selection and comparison of various line layout options.

关 键 词：悬浮隧道 弹振 松弛判断 临界净浮力 垂度效应 

分 类 号：U459.9[建筑科学—桥梁与隧道工程]