Mesoscopic Study on Consolidation Compression of Saturated Sand
As the saturated sand is distributed widely, many scholars have researched the consolidation compression of saturated sand. But most of the numerical research methods are based on continuous medium hypothesis, which are difficult to reveal the interaction rule between the sand and water. Here the sand particles and fluid flow coupling is studied by the particle flow code (PFC). The fixed coarse-grid fluid scheme is implemented in PFC for fluid coupling simulation. The scheme solves the continuity and Navier-Stokes (N-S) equations numerically in Eulerian Cartesian coordinates. In the coupling process, void ration, permeation factor and compression factor are changing. The result shows that the compression of the layer near the load surface is larger than that of the layer far away from the load surface. The excess pore pressure is not only caused by the load, but also influenced by the locale deformation of the sand. The deformation and excess pore pressure dissipation process are much different while the load rate changed.
Saturated Sand Consolidation Particle flow method Mesoscopic study
XIANG Xianchao TU Pengfei
China Three Gorges University Key Laboratory of Geological Hazards on Three Gorges Reservoir Area, M China Three Gorges University Key Laboratory of Geological Hazards on Three Gorges Reservoir Area, M
国际会议
成都
英文
665-669
2010-10-10（万方平台首次上网日期，不代表论文的发表时间）