Deep Sea Floating Tunnel Influenced The Dynamic Response Of Suspension Technology Research Based On The Limit Drainage Idea

Communication Strait, the Gulf of traffic on both sides of the building in different parts of the world has been widely used,such as a variety of undersea tunnel and Bridge.But these traditional cross-sea channel in the face of ultra-wide strait is the feasibility of it is nothing.This is the new way of communication traffic on both sides of the sea,these factors led to the emergence off SFT.Submerged Floating Tunnel(We usuallycall it SFT for short), one for new transport structure across various waters. What is the use of dead weight, buoyancy and the balance between the supporting structure, make its suspended in certain depth. Due to suspension tunnel with passage of time is short, small impact on the natural environment, the choice of site is free and does not destroy natural landscape and so on many aspects of construction site, the advantages of its islands connected to the mainland, to resolve the gulf channel and coastal engineering construction has potential application value, therefore the water suspension tunnel is becoming tunnel professional direction of the new research subject.This article mainly discusses the floating tunnel made the following several aspects work:This paper introduces several kinds of different wave theory, the linear wave theory,the theory of finite amplitude, solitary wave theory, elliptical cosine wave theory and wave theory. Also introduced the theory of wave forces, and emphatically introduces the scope and conditions of the Morison equation and the equationThis paper introduces the water for underwater structures, the influence of the Submerged floating tunnel(SFT), the effects of water tube body of the tunnel is analyzed. At the same time the floating tunnel is discussed the basic principle of fluid-structure interaction, description method and the motion control equation. And give the fluid-structure coupling of two kinds of typical coupling solving method of iteration and direct coupling.This paper introduces the basic theory of fluid-structure interaction and the solving methods and introduces the focus on the fluid-structure interaction analysis of large-scale finite element analysis software scaled the basic operation and the solving process of adina.the. Second, simple description of the floating tunnel the process of establishing the finite element model, and under different conditions(differentsuspended depth and different section structure, different eta values, different currents flow velocity) are simulated. Finally, this chapter analysis under the different influence factors of the different response of the tunnel tube body, relevant conclusions are drawn.