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

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.