1974 · 22 citations · 0 references
EngineeringMarine EngineeringOcean EngineeringOffshore StructuresStructural EngineeringSubsea EngineeringGlacier MechanicsIce DeformationIce DynamicsIce Fracture MechanicsSea Ice StudiesField MeasurementsIce LoadingIce Loading AnalysisIce Loading On FoundationsIce Model TestingIce Strength TestingSea Ice StrengthStructural Ice Loading
Ice forces are the primary concern for offshore structures in Arctic regions, yet significant knowledge gaps remain despite recent field measurements. The Iowa Institute of Hydraulic Research aims to address these gaps by conducting model studies on ice forces acting on vertical piles. The study involved model tests measuring how ice forces depend on pile diameter, ice thickness, and relative velocity between ice and structure. The developed model techniques successfully replicated ice‑breaking phenomena, showing close similarity between model predictions and prototype conditions.
Abstract : Ice forces are the principal concern in designing offshore structures such as drilling platforms, transloading points, or bridge peers in arctic regions. Although some results have been obtained by field measurements in recent years, there are still significant gaps in the knowledge of ice forces on structures. In order to fill some of these gaps, the Iowa Institute of Hydraulic Research has undertaken model studies on the investigation of ice forces on vertical piles. Model techniques for the study of ice-breaking phenomena have been developed, and the similarity between the model indications and prototype conditions has been demonstrated. Tests on the relationships between ice forces (ice strength) and pile diameter, ice thickness, and relative velocity (strain rate) between ice and structure have been completed.