Topic
Soil structure interaction
About: Soil structure interaction is a research topic. Over the lifetime, 3653 publications have been published within this topic receiving 48890 citations.
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TL;DR: In this article, high-resolution finite element models of the ship-structure-soil interactions are developed to clarify the failure modes and dynamic interaction process of the pile-supported structures subjected to ship collisions.
93 citations
TL;DR: In this paper, the response of fixed offshore platforms supported by clusters of piles is investigated and the soil resistance to the pile movement is modelled using dynamic p- y curves and t- z curves to account for soil nonlinearity and energy dissipation through radiation damping.
89 citations
TL;DR: In this article, the authors make recommendations for estimating liquefaction-induced movements of buildings with shallow foundations based on these studies, and they make use of nonlinear effective stress analyses to capture the soil and building responses reasonably well and provide valuable insights.
Abstract: Liquefaction or cyclic softening from earthquake shaking have caused significant damage of buildings with shallow foundations. In recent earthquakes, buildings have punched into, tilted excessively, and slid laterally on liquefied/softened ground. The state-of-the-practice still largely involves estimating building settlement using empirical procedures developed to calculate post-liquefaction, one-dimensional, consolidation settlement in the “free-field” away from buildings. Performance-based earthquake engineering requires improved procedures, because these free-field analyses cannot possibly capture shear-induced and localized volumetric-induced deformations in the soil underneath shallow foundations. Recent physical and numerical modeling has provided useful insights into this problem. Centrifuge tests revealed that much of the building movement occurs during earthquake strong shaking, and its rate is dependent on the shaking intensity rate. Additionally, shear strains due to shaking-induced ratcheting of the buildings into the softened soil and volumetric strains due to localized drainage in response to high transient hydraulic gradients are important effects that are not captured in current procedures. Nonlinear effective stress analyses can capture the soil and building responses reasonably well and provide valuable insights. Based on these studies, recommendations for estimating liquefaction-induced movements of buildings with shallow foundations are made.
89 citations
TL;DR: In this paper, a new empirical design chart is presented to allow an assessment of maximum pile bending moment and pile head deflection based on the relative soil-pile stiffness and current loading level.
Abstract: Piles supporting bridge abutments on soft clay may be loaded laterally from horizontal soil movements generated by the approach embankment. The design of piles loaded by lateral soil movements is problematic in that existing design approaches are generally inconsistent or show poor correlation with available data. New empirical design charts are presented to allow an assessment of maximum pile bending moment and pile head deflection based on the relative soil-pile stiffness and current loading level. A new analytical approach is also developed on the basis of a simple deformation mechanism. The method accounts for the main features of the problem through an approximate representation of the embankment-soil-pile interaction, and is shown to compare favourably with centrifuge model test data. Recommendations for the design of pile groups for loading from lateral soil movements are also given. Les mouvements horizontaux du sol crees par le remblai sont susceptibles d'engendrer des contraintes laterales dans ...
89 citations
TL;DR: In this article, the authors present a comprehensive approach to simulate an explosion occurring inside a buried axisymmetric lined cavity, which considers all the stages of the process: detonation of the internal charge, the shock wave propagation in the internal gas and its following interaction with the cavity's shell lining including multiple reflections; soil-structure dynamic interaction, including multiple gap opening/closure and wave propagation.
88 citations