... resistance span penetration complex reservoir modeling & simulation flowline buoyancy section high pressure high temperature submerged weight operation configuration module diameter lateral resistance effect case 1 offshore technology conference soil-pipe interaction Introduction...

... Abstract Rock berms are used for many different offshore pipeline applications such as protection from anchors and trawlers, mitigation against pipeline global buckling and improvement of pipelines on-bottom stability. Understanding the lateral resistance provided by rock berms to pipelines...

... is inherent in such method since the actual pipeline out-of-straightness remains unknown until installation. Hence, this represents an area that requires further investigation to find a robust approach for modelling pipelay induced out-of-straightness. Lateral resistance: Lateral resistance depends on pipe...

... resistance sediment mobility effect lateral resistance resistance friction assessment initiation upstream oil & gas embedment References References An , H. , Luo , C. , Cheng , L. White , D.J. , and Brown T. 2011 . Introduction to the O-tube Proc . 6th...

... ): 419 – 446 . friction offshore technology conference aleatory tolerability variability initiation offshore pipeline geotechnical input embedment upstream oil & gas pipe embedment breakout resistance geotechnical variability strength resistance lateral resistance psi...

... on p-y relationships of saturated degradation sands. Results showed that lateral resistances of strata gradually decreased with the increase of residual pore water pressures and ultimate lateral resistances decreased by 80-90% for post-liquefaction strata. The method determining the ultimate lateral...

... and therefore no lateral or uplift restraint acting on the pipeline to prevent buckling, apart from the lateral resistance between the pipe and the soil. A key challenge for this subsea flowline design is the control of lateral buckling, pipe walking, or route curve instability of the flowlines between...

... and pipeline walking, and design safe and effective means to control these phenomena. However, of all the design parameters, the soil response causes the greatest uncertainty in design because of the extreme sensitivity of design solutions to the axial and lateral resistance imposed by the soil. Improving...

... should be paid to the investigation of very shallow strata (the first metre). interaction diameter flowline lateral resistance vertical stiffness offshore pipeline model test otc 19261 axial resistance penetration displacement cyclic amplitude resistance amplitude strength...

... to govern is given by Palmer (2000). Since then soilstructure interaction has been reported recently by various authors, including Fontaine (2006), Fontaine et al (2004), Bridge et al (2004), Giertsen et al (2004), and Leira et al (2005). interaction lateral friction lateral resistance otc 18896...

.... flowline pipeline lateral mitigation system expansion lateral resistance deepwater pipeline instability curvature subsea structure upstream oil & gas suction anchor resistance anchor displacement riser otc 17815 mitigation method offshore pipeline mitigation measure offshore...

... resistance which depends on less-known soil properties. It is the latter that has more uncertainties due to the unpredictable and highly variable nature of soil conditions and the lack of reliable pipesoil resistance prediction methods. platform lateral resistance technology conference pipeline...

... ABSTRACT This paper presents the results of centrifuge tests and nalyses performed to determine the influence of cyclic lateral loading on the ultimate lateral resistance of foundation piles in normally consolidated clay soil. The work was motivated by the need for an appropriatemethod...

... offshore structures. This paper considers briefly the concept that coupling of uplift and tensile loading results in the need to consider reduced load transfer in lateral resistance and in side resistance. Models for the uncoupled method are given, results from small-scale studies are presented, a model...

... ABSTRACT Within a wider research investigation of lateral stability of marine pipelines, a geotechnical investigation was carried out to examine lateral resistance to movement. It included extensive full-scale tests on a nominal 10-inch pipe on sand, under a range of loading conditions...

... higher, of the maximum grouting pressure, remain prestressing the ground, long after grouting has been finished. For piles and tiebacks' bulbs equipped with devices that perform, radially, such pressure groutings in the surrounding soil, the lateral resistance at a point depth h, in units of stress (T h...

... load lateral resistance lateral stability axial load specimen lateral deflection reduction inner pipe amoco production co jacket leg strength imperfection effective length factor ungrouted jacket leg upstream oil & gas deflection pipe OTe 4645 Lateral Stability of Piles...

... such data have been collected for clays. Of the work that has been published regarding lateral resistance of pipes in soft clays, little attention has been paid to the effect of embedment depths greater than one pipe diameter. Knowledge concerning lateral stability at greater depths is desirable because...

... for the case of an offshore platform on a pile foundation. subsea system lateral resistance reservoir characterization effective stress earthquake upstream oil & gas shear modulus resistance pore water pressure redistribution loading liquefaction offshore technology conference drainage...

... ABSTRACT The upper bound approach of the theory of perfect plasticity has been applied to develop a method for geotechnical stability analysis of unburied submarine pipelines. The coefficient of? lateral resistance of the soil and the corresponding displacements of the pipe depend on seven...