Design Analysis of Offshore Stabbing Guide

초록

The stabbing guide is often used to guide an add-on pile into an existing pile in offshore jacket installation. Also it provides a pile alignment for a welding tie-in in static condition. Even stabbing guide is an essential component in pile installaion, it is not considered as a permanent offshroe structure. In this regard, there is not a define design guideline introduced. In API RP 2A WSD, it briefly define the design considerations of stabbing gide. The failure of stabbing gide can casue a greate economical loss and a serious impact ot the project schedule. Stabbing guide design should consider many factors considering actual work condition for both static and dynamic situations. In the paper, a design method is proposed by appling the plate theory and it is confirmed numerically with FEM modeling. The goemetry of stabbing guide is assumed as a cylinder shape with various wall thickness and effective length. The various thickness, effective length and pile size are compared for stable stabbing guide design