Numerical study on movements of soil particles forming clogging layer during vacuum preloading of dredged slurry

• Published in: Granular matter Vol. 23; no. 4
• Main Authors: Shi, Li, Jiang, Jianwei, Wang, Qiuqi, Sun, Honglei, Yuan, Zonghao, Pan, Xiaodong
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.11.2021; Springer Nature B.V
• Subjects: Complex Fluids and Microfluidics; Computational fluid dynamics; Discrete element method; Dredging; Engineering Fluid Dynamics; Engineering Thermodynamics; Exact solutions; Fluid dynamics; Foundations; Geoengineering; Heat and Mass Transfer; Hydraulics; Industrial Chemistry/Chemical Engineering; Materials Science; Mathematical models; Membranes; Numerical models; Original Paper; Particle image velocimetry; Particle size; Permeability; Physics; Physics and Astronomy; Prefabrication; Sedimentation & deposition; Slurries; Soft and Granular Matter; Soil compaction; Soil erosion; Soil layers; Vertical drains; CFD-DEM; Vacuum consolidation; Dredged slurry; Clogging layer; Particle movement

A clogging layer would be formed on surface of the prefabricated vertical drain (PVD) when the dredged slurry is treated using the vacuum preloading method. The clogging layer decreases the efficiency of drainage consolidation seriously. A numerical model is built to study the slurry particle moveme...