A Method for Deformation and Tilt Evaluation of Offshore Platforms

Abstract

The invention provides a method for evaluating inclination of ocean platforms, and belongs to the technical field of ocean engineering. The method includes monitoring measurement data of strain sensors on legs in real time to acquire inclination state matrixes of the ocean platforms; performing association analysis on the inclination state matrixes; acquiring integral inclination images of the ocean platforms to visually display inclination states of the ocean platforms. The method has the advantages that auxiliary decisions can be made by the aid of the method with appropriate safety coefficients, so that operators can master deformation trend conditions of the legs; warning can be carried out when preset deformation values are exceeded, accordingly, the legs can be timely adjusted, and pile pitching and extracting operation on the legs of lifting ships of the ocean platforms can be effectively guided.

Description

technical field [0001] The invention relates to a method for evaluating deformation and inclination, in particular to an evaluation method for inclination of an ocean platform, and belongs to the technical field of ocean engineering. Background technique [0002] Offshore platforms support and balance weight through pile foundations, and the platform load is usually carried by multiple pile legs. During the process of lifting and pulling out piles on the offshore platform, the pile legs will be deformed due to tilting and extrusion, causing the platform to tilt. In order to avoid pile leg jamming, the deformation of each pile leg is usually monitored. By evaluating its deformation and inclination, an early warning is given in time, and the operation of the pile leg insertion and extraction of the offshore platform lifting ship is guided, so as to ensure the safety of the platform. Safe operation, reduced maintenance costs, improved equipment integrity, and extended service ...

AI Technical Summary

Problems solved by technology

[0003] At present, for the evaluation of the deformation and inclination of pile legs on offshore platforms, strain gauges are usually installed on each pile leg to sense the deformation of a single pile leg respectively, and by obtaining the deformation information of each pile leg, it is determined whether it is necessary to adjust the plugging and unplugging of the pile leg situation, this analysis adopts a single-point adjustment method, ignoring the correlation effect caused by the inconsistency of the deformation of each leg

This analysis method lacks an effective assessment of the overall inclination of the platform, and it is often prone to local over-extrusion of the pile legs. How to correctly predict and evaluate the overall inclination of the platform due to excessive extrusion deformation of the pile legs has not been possible. very good solution

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