Meng Sun

The University of Hong Kong | HKU

Evolution from fines migration to deposition and clogging is critical for many geotechnical and environmental engineering practices. In this study, the coupling of computational fluid dynamic and discrete element method was adopted to tackle fines migration. The surface energy density term γ\documentclass[12pt]{minimal} \usepackage{amsmath} \usepac...

Bioremediation is widely used to improve ground soil by introducing calcium carbonate (CaCO3). Shear wave velocity (Vs) is usually adopted to evaluate effect but the microscopic mechanism is unclear. The discrete element method (DEM), a promising tool for simulating the behaviors of cohesive and noncohesive materials, was used in this study to simu...

A Rowe cell type compression-breakthrough-bender element column (CBB column) was developed to simulate and monitor the internal erosion process of glass bead (GB) and salt grain (GB-NaCl) mixtures with salt contents of 5% and 34% by weight. Dry samples of GB-NaCl mixtures were compressed up to 100 kPa and were then flushed with de-ionized water. Sa...

Groundwater contamination with iron caused by mining and landfill activities has fueled the development of remediation strategies. Permeable reactive barriers (PRBs) are commonly applied in subsurface remediation because of their high removal effect and low costs. Spectral induced polarization (SIP) technique has been approved for its nondestructiv...