Study On Bearing Capacity And Dynamic Disaster Of Hexagonal Spudcan Foundation

With the development of the required ocean resource in China, the offshore platform is widely used in the exploration and exploitation of oil and gas as an important facility. To provide a quick and convenient installation condition, the offshore moving installation vessel is widely used as important equipment. According to the relative standards, ABQUS FEM software and model test, the calculation and comparison about indexes of soil relative to pile boots and caisson is implemented due to different soil levels and engineering condition. The capacity, resist-slide, settlement and liquefaction of installation platform in ocean environment are deep studied for some aspects as follows:1.According boots size and geological data using the DNV standards and the American Petroleum Institute specification with engineering examples of the pile foundation and caissons for boots and into the mud Deep Computing Capacity Analysis, designed as a platform to provide valuable reference.2.The two conditions boots layered sum settlement calculation method, by the way Terzaghi theory of consolidation and consolidation calculation using the finite element software ABAQUS numerical simulation.3.The use of the method and the China Classification Society DNV norms respectively hexagons pile shoe in self-preservation conditions for stabilizing force calculation, the migration project for caisson sliding calculation, the results with finite element software ABAQUS to compare. Stability analysis and sliding.4.According to the current understanding of pile shoe for hexagons, caissons and location of soil conditions, experimental design methods, depending on the actual load situation, by the size of the adsorption experiments.5.According to the geological survey report, the20m depth range for the plant’s soil liquefaction numerical simulation.Through the work above, the behaviors relative to soil of offshore installation vessel in ocean environment is studied based in the engineering background. The available values of different methods are compared to conduct the practical engineering.