3D Finite Element Numerical Analysis Of New Type Sheet-Pile Wharf With Load-Relieving Plantform

Port is a country or a region opening to the outside of the windowand Bridges, participate in the international division of laborcooperation and competition of regional economy is important. As one ofthree biggest wharf structure of sheet pile wharf, its advantage is thatcan be in the bearing capacity of subgrade is low, being built on softsoil foundation can be appropriate to reduce earth quantity and cofferdamconstruction difficulty, but sheet pile wharf encounters difficultieswith the wharf developing towards deepwater and large-scale, So we needto put forward to presentating a new sheet pile wharf structure to adaptthe development of deepwater and large-scale, the sheet-pile retainingstructures with a rigid load-relieving component is one of the new typesof sheet pile wharf. Sheet-pile retaining structures with a rigidload-relieving component can effectively reduce the soil pressure offront wall, which is being widely used in recent years. The structure isalso one of the direction of the sheet pile wharf to adopt deepwater andlarge-scale, and in foreign countries, especially European countries,itis a very popular structure.Sheet-pile retaining structures with a rigid load-relievingcomponent is commonly used in soft foundation supporting project of a newtype of wharf structures. It is a complex structure composed by unloadingcaps, former wall and rear piles etc. Unloading platform which is connectthe front wall and back row pile into a whole, it has a more stablefoundation and forced deformation of the more complicated factors thannormal separated unloading terminal. It is because of the existence of the unloading platform, making the cap at the top of the load through thepile foundation can pass on to the soil directly, make the back row pilestress increases, while the front wall of lateral pressure decreasesgreatly. But Sheet-pile retaining structures with a rigid load-relievingis very complicated,it is not only to withstand larger vertical load, butalso restrain soil lateral deformation, At present, there is no analysisof the calculation method and the corresponding mechanical properties.This paper summarizes present situation of earth pressure theory,calculation method of earth pressure and structure computation method,combined with the present geotechnical unloading soil arch, Using thetheory of the unloading arch theory and parallel walls. The rheologicalproperties of soil in addition to a brief introduction of basic theory,analysis of soil creep the long-term deformation of pile foundation anduse of the structure has a significant effect, this paper adopts Qingdaoseafood matter revetment engineering, three dimensional finite elementnumerical simulation method of the new pier structure has carried on thedetailed calculation and analysis, and compare with the calculated valuewill be results. Back row piles at the same time, in this paper, by changingthe unloading platform and the distance of the front wall, from the aspectsof pile position shift and stress to study the influence on structure workcharacter, so as to validate the rationality of structure design.