Numerical study on lateral soil-pile interaction by particle flow code

作者：Su Dong^*; Li Xia; Li Xiang Song

来源：Journal of Shenzhen University Science and Engineering, 2006, 23(1): 42-47.

• Force displacement relationships
• Loading paths
• Microscopic soil behavior
• Noncoaxial
• Numerical simulations
• Orthogonal loading effect
• Particle flow code
• Particle flow numerical modeling
• Physical quantities
• Soil pile interaction

Numerical modeling of soil-pile interaction under lateral loading was performed by Particle Flow Code in two dimensions, loading paths of which include monotonic, periodic, cross and semicircular paths. Force-displacement relationships were measured while their connections with microscopic soil behavior were studied by monitoring variations of some physical quantities. The numerical simulations show that the preloading along the orthogonal direction would cause stress degradation in soils and induce orthogonal loading effect. Under nonlinear loading path, the direction of load increment deviates gradually from the direction of displacement increment as the displacement increases. The phenomena and corresponding mechanisms obtained from numerical tests benefit design and implementation of physical model tests.

• 出版日期2006