海洋平台吸力式基础的研究与进展

吸力式基础平台是近年开发出的一种新型海洋平台,由于多种优越性而受到各国石油部门的重视,并引起许多研究人员的关注.对有关吸力式基础的沉贯、稳定性以及与分析密切相关的冰激振动、土的动载下的本构研究进展进行了综述.并在最后针对海洋地区的条件提出了今后研究的重点问题,包括:沉贯阻力特性、动载下基础的软化特性和液化可能性、合适的土动力本构关系和数值方法、实验方法及模型律等. 

PROGRESS IN THE STUDY ON THE BUCKET FOUNDATIONS OF OFFSHORE PLATFORM

Bucket Foundation plate is a new type of offshore platform in recent years. It attracts much attention of oil companies and researchers in many countries by its merits. This paper reviews the progress on the suction penetration, instability of the foundations, the ice-induced vibration and the constitutive relation of soils under cyclic loading which are closely related with the analysis of instability of the foundations. At last, some problems under conditions of Bohai area needed to study in the future are presented, which include: the drag of sinking, the softening characteristics and the probabilities of liquefaction, appropriate dynamic constitutive relation of sand and numerical methods, experiments and modelling laws e.t.c.