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Installation and Load Capacity of Torpedo Anchors in Offshore Applications
The effectiveness of torpedo anchor as offshore foundation was investigated through numerical modeling. The installation was modeled in an explicit dynamics code, capable of simulating large strain deformation and matched favorably with data from field installations. Anchor tilt during installation was simulated through artificial columns of soil, resulting in movements that closely match those reported from field tests. Results from anchors with and without fins were compared to assess the potential benefits of fins. Excess pore water pressure generated during anchor installation was included in analyses to accurately characterize the shear strength properties of the soil in the immediate vicinity of an anchor. Pullout capacity was significantly reduced due to increase in excess pore water pressure (and consequent reduction in shear strength). The pullout capacity increased, following dissipation of excess pore water pressure. Results of pullout capacity with and without consolidation matched field results for corresponding conditions.
Installation and Load Capacity of Torpedo Anchors in Offshore Applications
The effectiveness of torpedo anchor as offshore foundation was investigated through numerical modeling. The installation was modeled in an explicit dynamics code, capable of simulating large strain deformation and matched favorably with data from field installations. Anchor tilt during installation was simulated through artificial columns of soil, resulting in movements that closely match those reported from field tests. Results from anchors with and without fins were compared to assess the potential benefits of fins. Excess pore water pressure generated during anchor installation was included in analyses to accurately characterize the shear strength properties of the soil in the immediate vicinity of an anchor. Pullout capacity was significantly reduced due to increase in excess pore water pressure (and consequent reduction in shear strength). The pullout capacity increased, following dissipation of excess pore water pressure. Results of pullout capacity with and without consolidation matched field results for corresponding conditions.
Installation and Load Capacity of Torpedo Anchors in Offshore Applications
De, Anirban (author) / Pecorini, David (author) / Morgante, Alberto (author)
IFCEE 2015 ; 2015 ; San Antonio, Texas
IFCEE 2015 ; 792-801
2015-03-17
Conference paper
Electronic Resource
English
INSTALLATION AND LOAD CAPACITY OF TORPEDO ANCHORS IN OFFSHORE APPLICATIONS
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