Numerical analysis of reinstallation of spudcans near footprints formed during prior installations
MJ Jun, YH Kim, MS Hossain, MJ Cassidy, Y Hu, SG Park
Applied Ocean Research | Elsevier | Published : 2020
This paper reports the effect of the remoulded soil strength of a footprint on the reinstallation of jack-up rigs near the footprint. The footprint creation is from an earlier spudcan penetration and extraction process in which the soil is remoulded. Dissipation of pore pressures between the footprint creation and jack-up reinstallation causes further consolidation of the soil around the footprint. Large-deformation finite-element (LDFE) analyses were performed using the Coupled Eulerian-Lagrangian (CEL) approach. A recently developed novel spudcan shape with a flat base and four holes is studied to mitigate spudcan-footprint interactions during spudcan reinstallation. The installation of a ..View full abstract
Awarded by Australian Research Council
The research presented herein was undertaken with support from the Australian Research Council (ARC) through Linkage Project LP140100066. The work forms part of the activities of the Centre for Offshore Foundation Systems (COFS), currently supported as a node of the Australian Research Council Centre of Excellence for Geotechnical Science and Engineering and as a Centre of Excellence by the Lloyd's Register Foundation. This support is gratefully acknowledged, as is the helpful discussion with Dr. Dong Wang.