引言现今近海结构将要在越来越深的水域中建造。因为平台变得越来越高并且对结构质量的要求也越来越高,所以需要更准确而可靠的计算。处理桩的承载力问题时,通常把结构分为两部分:线性部分(导管架基底以上的结构)和非线性部分(导管架基底以下由土支承的桩和导管)。这两部分之间的相互作用的描述往往是基于粗糙的而且是不完善的相容条件。在桩的分析中,切断处的边界条件是桩的力矩-转 Introduction Today’s offshore structures will be built in increasingly deeper waters. Because the platform is getting higher and higher and the requirements on the quality of the structure are getting higher and higher, more accurate and reliable calculations are needed. When dealing with the bearing capacity of a pile, the structure is usually divided into two parts: the linear part (the structure above the jacket of the jacket) and the non-linear part (the pile and the tube supported by the soil below the jacket of the jacket). The description of the interaction between these two parts is often based on rough and imperfect compatibility conditions. In the pile analysis, the boundary condition at the cut-off is the torque of the pile-turn