Abstract
The advantages and disadvantages of two construction methods of steel sheet piles cofferdam are introduced and analyzed in the presented work, the analysis result of three representative models indicate that support setting plays an important role and has a strong influence on the internal force of steel sheet piles. Using genetic algorithm (GA) and matlab finite element and user-defined objective functions, two optimization models are proposed for traditional and inverse construction method. The work of this paper demonstrates that using reasonable support space can effective reduce the maximum bending moment of the steel sheet piles, it means that steel sheet piles can break current water depth limitation and application in deep-sea construction.
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