海洋平台钢桩可打入性分析方法及适用性研究

打桩是海洋桩基平台海上安装的关键环节之一,在钢桩设计阶段进行可打入性校核是保证顺利打桩的重要技术手段。文章介绍了当前海洋工程领域的打桩系统和打桩分析方法,并结合工程实例对不同打桩工况所采用的按土壤性质和按阻力性质进行阻力折减的方法、相关参数的取值及影响,以及方法的适用性进行了对比研究。最后结合国内海洋工程经验与现状,给出了进行钢桩可打入性校核与施工的一些结论和建议。

Steel Pile Driveability Analysis Method and Applicability for Installation of Offshore Platform

Piling is one of the most important steps for installation of offshore pile supported platform. Pile driveability analysis in pile design is crucial for successful offshore piling. The piling systems and piling analysis methods used in current offshore engineering are presented. Two kinds of resistance reduction methods,i.e. by soil property and by resistance property according to different piling cases,the relevant parameter values taken and their influences as well as applicability of the methods are comparatively studied. In the end,some conclusions and suggestions on steel pile driveability check and piling construction are given based on domestic offshore engineering experience and current status.