Static Analysis And Optimization Design Of Covered Type Of Sheet Pile Wharf

Sheet pile wharf is one of three main forms of wharf, the advantage of which is simple structure, saving materials, low engineering cost, simple construction, strong adaptability to complex geological conditions, and digging harbor basin after beat sheet pile that can reduce digging and filling. Sheet pile wharf is thin-walled structure, which flexural capacity is low, so the sheet pile wharf is mainly used on middle and small berths. When the water depth increases, the upper load of wharf and the earth pressure generate oversize moment on sheet pile, which impact the normal using of wharf.The invention of covered type of sheet pile wharf in recent years makes sheet pile used in the construction of deep water berth. Covered type of sheet pile wharf sets a row of covered piles which can reduce the earth pressure of front wall, so the earth pressure of the front wall and the covered piles of covered type of sheet pile is the research emphasis of covered type of sheet pile wharf.Mainly research methods of covered type of sheet pile wharf are geotechnical centrifuge model test, theoretical calculation and finite element calculation. In this paper, covered type of sheet pile wharf is researched by theoretical calculation and finite element calculation on the foundation of geotechnical centrifuge model test.Covered type of sheet pile wharf is a new structural type which has no mature design calculation method and design code. This paper establishes the calculation method of covered type of sheet pile wharf by using the imaginary covered plane, and according to the calculation method of double-row piles, this paper proposes a simplified calculation method of covered type of sheet pile wharf.This paper builds finite element calculation models by using ABAQUS, calculates and analyses double covered piles type of sheet pile wharf, semicovered type of sheet pile wharfs and covered type of sheet pile wharfs with different distances between the front wall and covered piles, the different length of covered piles and the different water depth, summarizes the variation law of the earth pressure of front wall and covered piles.