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Keywords: lateral
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Proceedings Papers

Paper presented at the The 31st International Ocean and Polar Engineering Conference, June 20–25, 2021
Paper Number: ISOPE-I-21-4114
... Abstract The lateral spreading due to the soil liquefaction induced by an earthquake causes a large deformation of buried pipelines and leads to axial pipe strain, which may result in failure. This paper proposes a simplified formula for the tensile strain of a buried pipeline subjected...
Proceedings Papers

Paper presented at the The 31st International Ocean and Polar Engineering Conference, June 20–25, 2021
Paper Number: ISOPE-I-21-1144
... utilizes the mode-based analysis to extract the characteristic extreme current profile from database (Forristall & Cooper; 1997; Jeans et al.; 2003; Jeans et al.; 2012; Mattioli & Pizzigalli; 2016). This method was later compared with Current Profile Characterization (CPC) and an advanced...
Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-173
... girder bridge box girder bridge wind barrier coefficient bridge deck barrier structure cross wind wind velocity lateral Wind Barrier Selection for a HSR S-S Box Girder Bridge Based on Train Running Safety Weiwei Guo, He Xia School of Civil Engineering, Beijing Jiaotong University. Beijing...
Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-244
... positive HSE and installation impacts considering the large number of ZRBs required. lateral load displacement load step foundation safety margin upstream oil & gas installation load case zrb structure lateral displacement flowline lateral resistance probability zrb foundation...
Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-524
... of RTPs are produced during their laying, assembly and maintenance. The combination of initial imperfections in RTPs and high temperature of oil is prone to cause lateral bucking, jeopardizing the structural integrity of the RTPs. In this paper, a numerical study is carried out over a range of initial...
Proceedings Papers

Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-704
... of the pipe cross section. The torque can be generated by, for example route curves, or the weight of inline structures. The rotation phenomenon may be characterised as an instability, as in the case of top-heavy structures which only generate a torque when their centre of gravity becomes laterally displaced...
Proceedings Papers

Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-241
... with volumes of sales gas. The field layout and architecture is shown in Fig. 1. The subjects of this paper are the six oil production lines as follows: assessment buckle displacement sleeve pipe downhill anchor fe model inner pipe production flow axial displacement sleeper pipe lateral...
Proceedings Papers

Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-152
..., lateral mooring failure, both central and lateral mooring line failure are adopted. The most serious condition is found in the case of both central and lateral mooring line failure. The ratio of maximum mooring tension between the most serious condition and the normal condition is about 1.48. This value...
Proceedings Papers

Paper presented at the The 27th International Ocean and Polar Engineering Conference, June 25–30, 2017
Paper Number: ISOPE-I-17-559
... ABSTRACT Unburied subsea pipelines operating under high temperature and high pressure (HT/HP) conditions tend to relieve their axial compressive force by forming lateral buckles. Uncontrolled lateral buckling may lead to pipeline failure. In order to control the lateral buckling phenomenon...
Proceedings Papers

Paper presented at the The 27th International Ocean and Polar Engineering Conference, June 25–30, 2017
Paper Number: ISOPE-I-17-135
... or lateral bending. Because the web edge of the section is welded in shipbuilding, it should be flat in a plane, so this defect must be overcome or corrected. numerical simulation lateral node vertical deformation vertical displacement curvature simulation result vertical pre-bending amount...
Proceedings Papers

Paper presented at the The Twenty-fifth International Ocean and Polar Engineering Conference, June 21–26, 2015
Paper Number: ISOPE-I-15-445
... numerical simulations. subsea pipeline buckle trigger offshore pipeline application sleeper pipeline lateral displacement design prototype pipeline design friction factor upstream oil & gas cardoso buoyancy section curvature radius effective axial force pra-1 pipeline numerical...
Proceedings Papers

Paper presented at the The Twenty-fifth International Ocean and Polar Engineering Conference, June 21–26, 2015
Paper Number: ISOPE-I-15-263
... buckle midstream oil & gas pipeline amplitude increment numerical simulation pipeline happen deformation subsea pipeline initial temperature global lateral analytical solution offshore pipeline equilibrium state imperfection lateral Study on Global Lateral Buckling of Imperfect...
Proceedings Papers

Paper presented at the The Twenty-fifth International Ocean and Polar Engineering Conference, June 21–26, 2015
Paper Number: ISOPE-I-15-271
... route bend buckle criticalbucklingforce axial force reliability formulation curvature effective force profile rogue buckle pipeline route lateral offshore pipeline imperfection Pipeline Design on Undulating Seabed with Planned and Rogue Buckles using Simplified Structural Reliability...
Proceedings Papers

Paper presented at the The Twenty-fifth International Ocean and Polar Engineering Conference, June 21–26, 2015
Paper Number: ISOPE-I-15-619
... Abstract Lateral buckling of exposed HPHT (high pressure and high temperature) subsea pipeline is an important aspect in detailed design. The snaked-lay method is an efficient control method of lateral buckling. In this study, a new shape of snaked-lay is proposed based on free Bezier curves...
Proceedings Papers

Paper presented at the The Twenty-fourth International Ocean and Polar Engineering Conference, June 15–20, 2014
Paper Number: ISOPE-I-14-496
... for irregular ship segments. Firstly, external forces applied to the segments are calculated. Then the maximum horizontal and vertical seizing forces are derived. Finally, the transverse sliding balance, longitudinal sliding balance and lateral reversing balance of the segments are analyzed and the number...
Proceedings Papers

Paper presented at the The Twenty-fourth International Ocean and Polar Engineering Conference, June 15–20, 2014
Paper Number: ISOPE-I-14-270
... Abstract With the development of the offshore oil industry, submarine pipelines work at higher temperatures and subsea pipeline buckling and deformation have become a key problem of pipeline design. High temperature and high pressure pipeline axial stress is the main reason leading to lateral...
Proceedings Papers

Paper presented at the The Twenty-fourth International Ocean and Polar Engineering Conference, June 15–20, 2014
Paper Number: ISOPE-I-14-288
... Abstract This paper presents a probabilistic method to assess the lateral buckling response of a pipeline. The method is based on a Monte Carlo simulation in which the lateral buckling response is predicted using a surrogate model that uses artificial neural networks calibrated from non-linear...
Proceedings Papers

Paper presented at the The Twenty-third International Offshore and Polar Engineering Conference, June 30–July 5, 2013
Paper Number: ISOPE-I-13-302
... midstream oil & gas lateral eca internal pressure biaxial adjustment upstream oil & gas offshore pipeline reference stress solution strength adjustment method hoop stress Engineering Critical Assessment of Pipeline under Axial Straining with Internal Pressure T Sriskandarajah and Daowu...
Proceedings Papers

Paper presented at the The Twenty-third International Offshore and Polar Engineering Conference, June 30–July 5, 2013
Paper Number: ISOPE-I-13-250
... point for lateral buckling is created by the elevation change of the pipeline at the crossing and, because the crossing is very close to the PLEM tie-in location, it is possible that buckling may occur at the crossing location before the PLEM has an opportunity to move and relieve the build-up of axial...
Proceedings Papers

Paper presented at the The Twenty-second International Offshore and Polar Engineering Conference, June 17–22, 2012
Paper Number: ISOPE-I-12-253
... prudent safety against the bending load and fatigue damage from the global buckling. The typical buckle initiators are sleepers (vertical upsets) and buoyancy sections (flowline section with much reduced submerged weight). Both devices can reduce the soil lateral resistance and lead to global buckling...

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