Browsing Publikasjoner fra CRIStin - SINTEF Ocean by Author "Ji, Guomin"
Now showing items 1-7 of 7
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Algorithmic formulation of clay and sand pipe–soil interaction models for on-bottom stability analysis
Longva, Vegard; Ji, Guomin; Sævik, Svein; Ye, Naiquan; Gjøsteen, Janne Kristin Økland; Giertsen, Egil; Wang, Yanbin (Peer reviewed; Journal article, 2021)This paper presents a new algorithmic formulation of the clay and sand pipe–soil interaction models recommended by the DNV-RP-F109 code for dynamic on-bottom stability analysis of submarine pipelines. The pipe–soil force ... -
Calibration of material models against TSTM test for crack risk assessment of early-age concrete containing fly ash
Ji, Guomin; Kanstad, Terje; Bjøntegaard, Øyvind (Journal article; Peer reviewed, 2018-05-09)Making reliable cracking risk assessment involves experimental testing and advanced modeling of the time- and temperature-dependent behavior of the properties, the restraint conditions of the structure, and the external ... -
Crack risk evaluation of submerged concrete tunnel during hardening phase
Ji, Guomin; Kanstad, Terje; Bjøntegaard, Øyvind (Journal article; Peer reviewed, 2018-12-23)Cracking of concrete structures during the hardening phase often seriously compromises not only structure integrity but also durability and long-term service life. Especially for large massive structures, for example, ... -
Effect of lay angle of anti-buckling tape on lateral buckling behavior of tensile armors
Zhou, Chongyao; Sævik, Svein; Ye, Naiquan; Ji, Guomin (ASME Proceedings | Pipeline and Riser Technology;OMAE2015-41527, Chapter, 2015-06)During deep water flexible pipe installation, the pipe is normally free hanging in empty condition from the installation vessel to the seabed. This will introduce large hydrostatic forces to the pipe causing true wall ... -
Non-Linear Clay Soil Model for Lateral Pipe-Soil Interaction
Agusta, Arifian; Ji, Guomin; Sævik, Svein (ASME Proceedings | Pipelines, Risers, and Subsea Systems;OMAE2016-54658, Chapter, 2016-06)This paper describes implementation and application of nonlinear lateral soil models for pipeline lateral buckling analysis. Several lateral soil models have been developed in the past and the model developed by Verley is ... -
Numerical modelling of field test for crack risk assessment of early age concrete containing fly ash
Ji, Guomin; Kanstad, Terje; Bjøntegaard, Øyvind (Journal article; Peer reviewed, 2018-09-09)The high-strength/high-performance concretes are prone to cracking at early age due to low water/binder ratio. The replacement of cement with mineral additives such as fly ash and blast-furnace slag reduces the hydration ... -
On-Bottom Stability Analysis of Subsea Pipelines Under Combined Irregular Waves and Currents
Ji, Guomin; Li, Lanjing; Ong, Muk Chen (ASME Proceedings | Pipelines, Risers, and Subsea Systems;OMAE2017-61363, Chapter, 2017-06-25)The objective of the paper is to study the effect of different parameters regarding on-bottom stability of subsea pipelines under combined irregular waves and currents. The effect of friction coefficient is first investigated. ...