... Abstract A mudmat supporting a pipeline end termination (PLET) sits on top of a silty sand deposit that could potentially liquefy during earthquake shaking. A conventional code-based bearing capacity analysis of the mudmat was initially performed that accounted for the effect of excess pore...

... process, called RBI-J. The outcome of the RBI-J analysis is the intermediate and major underwater inspection intervals of offshore structures. It is based on a semi-quantitative approach to estimate the global probability of failure of the platforms due to extreme storms or earthquake. It takes...

... Offshore platforms, fixed or floaters, are a well-established design concept for oil explorations. It is fundamental to design these structures such that they can resist moderate to severe earthquakes without causing any severe damage to the occupants and to maintain the integrity...

... of single piles and pile groups" , Journal of Geotechnical Engineering , Vol. 117 , No. 12 , pp. 1860 - 1879 , 1991 . Gazetas G. , "Seismic response of end-bearing piles" , International Journal of Soil Dynamics and Earthquakes Engineering , Vol. 3 ( 2 ), pp. 82 - 93 , 1984 . Green...

... responses due to the impact of seismic ground motions. In the coupled approach, the system can be analyzed by the response spectra method for an extreme level earthquake (ELE) and the dynamic non-linear analysis for an abnormal level earthquake (ALE). The effects of seismic kinematics and inertia, soil...

... years before present, with a best estimate age of 800 years before present (i.e. 12 th century AD). The 1068 AD Gulf of Aqaba earthquake or the 1202 AD Lebanon earthquake are possible triggers for the palaeolandslides and relict seafloor morphology. Deterministic 2D slope stability analyses were...

... of subsea structures. For the subject structure, the response spectrum analysis results show that the structure remains elastic during ELE (Extreme Level Earthquake) and ALE (Abnormal Level Earthquake) seismic events. This is due to the low-rise geometric profile of subsea structures. The results also...

... and safety aspects of nonstructural component response. It is possible that a facility can survive an earthquake with little or no structural damage but be unsafe to man or unable to operate due to damage to the equipment and systems supported by the structure. After the Gulf of Mexico hurricanes, Ivan...

... Abrahamson , N.A. and Silva , W. ( 2008 ). " Summary of the Abrahamson & Silva NGA ground motion relations ," Earthquake Spectra , Vol. 24 , No. 1 , February 2008 . American Institute of Steel Construction ( 2005 ). Specification for Structural Steel Buildings...

... robustness without unnecessarily increasing strength of the system's resistance to an irrelevant failure mode. accident consideration external hazard offshore technology conference rational robustness criteria mechanism physical process criteria extreme event hazard earthquake robustness...

... for extreme level earthquake (ELE) and dynamic nonlinear analysis for abnormal level earthquake (ALE). The response spectrum analysis is carried out using SACS and the time history simulations are performed using nonlinear dynamic structural analysis program, CAPFOS. Multiple interactions among soil, fluid...

... indicated that seismically-induced permanent slope displacements should be expected during significant earthquake events. A cumulative distribution function (CDF) that incorporated slope parameters and ground motion uncertainty was developed for slope displacements using the Newmark procedure. CDFs were...

.... earthquake seismic shear stress foundation erbrich carbonate sediment post-seismic settlement upstream oil & gas reservoir characterization subsea structure shear stress procedure settlement excess pore pressure loading shallow foundation seismic event infrastructure assessment soil...

... Abstract The present paper presents an integrated computational approach for earthquake generated tsunami prediction. The computational framework fully integrates the earthquake generated tsunami source, open-sea wave propagation, and wave run-up with inundation and on-shore effects...

... Abstract The paper describes a series of specialized centrifuge-shake table tests performed at the University of California at Davis (UC Davis) to investigate the behavior of offshore steel-jacket template structures subjected to earthquake excitations. The program tested two single piles...

... connectivity to a broad suite of novel subsea instrumentation in coastal and deep-ocean environments. infrastructure artificial intelligence earthquake ocean network canada observatory offshore technology conference reservoir characterization concentration tsunami technology development...

... when the trigger is a rare or unprecedented event such as a great earthquake, slow tectonic deformation, or global sea level change for which evidence of past occurrences is not preserved in the geomorphological record. For example, if a moderate magnitude M 5 earthquake were the largest to occur...

... during its four year stay offshore with no detectable vertical, lateral, or torsional movement. new buoyant tower subsea system scf upstream oil & gas hull deepwater technology topside offshore technology conference design innovation offshore peru compliant structure earthquake...

... Abstract The growth of the offshore industry into newer regions - including seismic regions - requires a detailed understanding of the earthquake design of offshore platforms. Guidance is provided in ISO 19901-2, " Petroleum and natural gas industries, Specific requirements for offshore...

... reservoir characterization ub soil property liquified natural gas rotational spring direct method offshore technology conference kinematic interaction soil-pile-structure interaction analysis lng tank peak acceleration soil property spectra earthquake tank soil-pile-structure...