Assessment of pipeline stability in the Gulf of Mexico during hurricanes using dynamic analysis

作     者：Yinghui Tian Bassem Youssef Mark J.Cassidy 

作者机构：Centre for Offshore Foundation Systems and ARC CoE for Geotechnical Science and EngineeringUniversity of Western Australia AtterisLevel 3220 St Georges TerracePerthWA6000Australia 

出 版 物：《Theoretical & Applied Mechanics Letters》 (力学快报（英文版）)

年 卷 期：2015年第5卷第2期

页      面：74-79页

核心收录：

学科分类：08[工学] 0824[工学-船舶与海洋工程] 0814[工学-土木工程] 0801[工学-力学（可授工学、理学学位）] 

基　　金：supported by the Research Development Awards of University of Western Australia,Australia-China Natural Gas Technology Partnership Fund and Lloyd's Register Foundation supports the advancement of engineering-related education and funds research and development that enhance the safety of life at sea,on land,and in the air forms part of the activities of the Centre for Offshore Foundation Systems(COFS) above,currently supported as a primary node of the Australian Research Council Centre of Excellence for Geotechnical Science and Engineering 

主　　题：Pipeline On bottom stability Dynamic lateral stability analysis Force resultant model Hydrodynamic load 

摘      要：Pipelines are the critical link between major offshore oil and gas developments and the mainland. Any inadequate on-bottom stability design could result in disruption and failure, having a devastating impact on the economy and environment. Predicting the stability behavior of offshore pipelines in hurricanes is therefore vital to the assessment of both new design and existing assets. The Gulf of Mexico has a very dense network of pipeline systems constructed on the seabed. During the last two decades, the Gulf of Mexico has experienced a series of strong hurricanes, which have destroyed, disrupted and destabilized many pipelines. This paper first reviews some of these engineering cases. Following that, three case studies are retrospectively simulated using an in-house developed program. The study utilizes the offshore pipeline and hurricane details to conduct a Dynamic Lateral Stability analysis, with the results providing evidence as to the accuracy of the modeling techniques developed.