The collision performance of jack-up marine platforms based on pile-soil coupling technology

Abstract

The truss jack-up offshore platform has become the main force of offshore oil and gas development with its stable operation ability and environmental adaptability. Meanwhile, along with the development of the offshore shipping industry, collisions between ships and offshore platforms have become more and more frequent. Therefore, it is important to study the collision performance of truss jack-up offshore platforms. Based on the “pile-soil” coupling technology, the non-linear finite element software ABAQUS is used to establish the pile-leg collision calculation model. The key parameters, such as damage deformation, collision force, and energy absorption, are analyzed through the analysis. The collision performance of the trussed offshore platform is analyzed through the calculated damage deformation, collision force, energy absorption, and other key parameters. The research results show that the collision between the ship and the marine platform has obvious local characteristics. In addition, the strength of the spar in the collision area can be increased appropriately to improve the collision performance of the platform effectively.