The behavior of buried offshore pipelines subjected to upheaval buckling has attracted much attention in recent years. Numerous researchers have made great efforts investigate the influence different soil cover depth ratios, strengths and pipe-soil interfaces on failure mechanisms bearing capacities during pipeline uplift. However, spatial variability been relatively limited. To address this ga...

PURPOSE: An analytical model to predict the response of mounds placed in the offshore is presented, with the overall aim of providing a technique for the preliminary design of mounds subjected mainly to cross-shore sediment-transport processes induced by non-breaking waves. For example, offshore mounds created from dredged material can be used to protect sandy beaches by dissipating wave energy...

Offshore aquaculture is increasingly viewed as a mechanism to meet growing protein demand for seafood, while minimizing adverse consequences on the environment and other uses in the oceans. However, despite growing interest in offshore aquaculture, there appears to be no consensus as to what measures commonly define an offshore site or how effects of offshore aquaculture—relative to more nearsh...

Gas hydrate (GH) is widely distributed in the world according to geological survey. Most of GH located ocean. After dissociation, strength gas bearing sediments (GHBS) decreases accompanying rise pore pressure, which can cause marine landslide. Landslide may transform into mudflows during movement on seabed. The massive submarine mudflow result serious deformation (or even damage of) pipelines,...

nowadays, compressible flow transmission pipelines are used in many industrial processes. pipelines in chemical processes, gas turbine power plants, natural gas transmission lines, and high pressure steam transmission pipelines are some industrial examples. therefore, learning the manner of treatment of a transient compressible fluid flow in pipelines with junctions and branches is important. i...

The Engineering industry is constantly exploring an effective and fast-solving method for complicated engineering problems. adaptation of artificial intelligent technology can diminish the time-consuming conventional analysis methods, especially in offshore engineering. For that reason, this study pursued to build a prediction model predict residual strength API 5L X42 subsea pipelines. An neur...

Pipelines in the offshore sector make common use of polypropylene (and other polymer) coating systems to protect infrastructure and provide thermal insulation. High pressure high temperature pipelines are subject large axial loads due restraint by seafloor soils strains pipe wall. Friction between material soil plays a defining role build-up stress formation lateral buckling. Accurate quantific...