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Keywords: undrained shear strength
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Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2020
Paper Number: OTC-30790-MS
... installation offshore pipeline settlement bearing capacity foundation application dissipation displacement seabed surface criteria mobile mudmat undrained shear strength mudmat Andersen , K. 2004 . Cyclic Clay Data for Foundation Design of Structures Subjected to Wave Loading...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2020
Paper Number: OTC-30896-MS
... Piezocone Penetration Test (CPTu) is widely used in offshore projects to obtain soil parameters, such as the undrained shear strength. Due to depth limitations to perform this test, it is common to obtain data until around 40m when the conductor installation process would require at least...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29669-MS
... model calibration. Das (2016) conducted probabilistic calibration of the infinite slope model using the Bayesian framework and experimental observations of in-situ undrained shear strength to develop correlation structures between the model parameters. The Infinite Slope Model Morganstern (1967...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29504-MS
.... All tests used high plasticity Gulf of Mexico clay with undrained shear strength corresponding to typical normally consolidated conditions. A test program was developed to evaluate: (1) rate effects for monotonic and cyclic loading, (2) vertical stiffness for displacement amplitudes ranging from 0.02...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29605-MS
... suction anchor anchor location reservoir characterization prediction seafloor anchor undrained shear strength ploughmark variability offshore technology conference fpso investigation barent sea unit ii upstream oil & gas Presentation of OTC-29605-MS Presentation of OTC-29605-MS...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29622-MS
.... database cyclic shear stress shear strength dss shear strength contour test result upstream oil & gas reservoir characterization strength normalized shear strength subsea system undrained shear strength shear stress andersen cyclic shear strain ocr 1 strain rate failure contour...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 2018
Paper Number: OTC-28727-MS
... pipeline design engineers. stability assessment resistance embedment on-bottom stability assessment result soil classification on-bottom stability liquefaction offshore pipeline shear strength assessment upstream oil & gas undrained shear strength artificial intelligence soil model...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2017
Paper Number: OTC-27785-MS
... profile diameter failure wedge undrained shear strength pile diameter artificial intelligence caisson offshore technology conference Presentation of OTC-27785-MS Presentation of OTC-27785-MS Aubeny , C.P. , Moon , S. and Murff , J.D. 2001a . Lateral undrained...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2015
Paper Number: OTC-26031-MS
... at various depths, generally provides a reasonable match to measured lateral displacements at the pile head when a relatively large strain at one-half the undrained shear strength is assumed, i.e., ? 50 = 0.02. This result applies both to small scale model tests in kaolinite and large-scale field tests...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 2014
Paper Number: OTC-25117-MS
..., installation and retrieval of counter-acts in harsh environments on a soft seabed. penetration depth seabed slope recovery load offshore pipeline resistance subsea system undrained shear strength sensitivity counteract installation counteract installation parametric study unit ii...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2013
Paper Number: OTC-24010-MS
...-bar test colliat shear strength profile symposium strength upstream oil & gas guinea undrained shear strength high sensitivity cyclic shear strength rate effect penetration sediment shear strength offshore technology conference resistance gulf Presentation of OTC-24010-MS...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2013
Paper Number: OTC-24063-MS
.... Soil type Method Sand Clay Cone resistance qc Relative density Dr Effective internal friction angle ' Effective interface friction angle Undrained shear strength suUU Cone resistance qc Plasticity index Ip Overconsoli- dation ratio OCR(or pc') Sensi- tivity St API NGI-05 ICP-05...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2013
Paper Number: OTC-24136-MS
... and are routinely used to complement the sampling program. However, the conventional practice is to directly evaluate the in-situ undrained shear strength using an assumed or fitted bearing factor, Nkt. The hybrid cavity-expansion and critical state theory establishes the relationship between OCR and piezocone...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2013
Paper Number: OTC-24154-MS
... resistance resistance smartpipe coefficient piping simulation penetration axial velocity 0 piping design interface offshore technology conference upstream oil & gas friction factor undrained shear strength Presentation of OTC-24154-MS Presentation of OTC-24154-MS OTC 24154...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2011
Paper Number: OTC-21256-MS
... undrained shear strength shear strain rate OTC 21256 Centrifuge Modeling of Glide Block and Out-runner Block Impact on Submarine Pipelines Arash Zakeri, C-CORE; Ken Chi and Bipul Hawlader; Memorial University Copyright 2011, Offshore Technology Conference This paper was prepared for presentation...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2011
Paper Number: OTC-21538-MS
... deepwater consortium investigation gis database geotechnical data angola correlation database undrained shear strength soil data resolution bathymetry soil condition offshore technology conference offshore angola otc 21538 operator information OTC 21538 GIS Technology Development...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2011
Paper Number: OTC-22010-MS
... offshore pipeline pore water pressure interaction upstream oil & gas pipe-soil interaction axial pipe-soil interaction pipe-soil interface friction factor pipe velocity penetration undrained shear strength shear strength interface piping simulation excess pore water pressure...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 3–6, 2010
Paper Number: OTC-20767-MS
... resistance was found for the "heavy" pipe case, and this has motivated PETROBRAS to develop a large scale test program for pipes in clay soils in the range of large displacements. offshore pipeline undrained shear strength residual resistance breakout resistance displacement resistance curve...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2009
Paper Number: OTC-20294-MS
... to demonstrate the variatiability in soil profile across the site; they were not used directly in the anchor design. 0 20 40 60 80 100 120 140 160 Undrained shear strength, su [kPa] 20 18 16 14 12 10 8 6 4 2 0 D ep th b el ow s ea be d, z [m ] E C E C C C E E C C C CPTU, Nkt=15 CAUE CAUC DSS Cluster 1, Anchor 3...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2009
Paper Number: OTC-20115-MS
... anchor mooring system centroid prediction eccentricity test result square plate finite element result out-of-plane loading subsea system rectangular plate upstream oil & gas bearing plate finite element analysis model test undrained shear strength analytical model loading...

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