Hyeon-Wook Cho
Hanyang University · Engineering
About the Lab
Professor Hyeon-Wook Cho's research lab specializes in geotechnical and environmental engineering, focusing on the hydraulic, mechanical, and geochemical behavior of particulate materials such as soils, sands, and fly ash. The lab investigates particle-scale interactions, including the effects of nanoparticle coatings on soil stiffness, clogging mechanisms in porous media, and the influence of geochemical conditions on particle transport and deposition. A key research direction involves developing predictive models for hydraulic conductivity, porosity, and critical shear stress in mixed-grain soils and coarse-grained sediments, with applications in environmental protection, infrastructure sustainability, and resource recovery from industrial by-products like fly ash. The lab also explores low-cost, in-situ characterization techniques for assessing soil and ash properties, particularly carbon content and void ratio, to support safe reuse and long-term stability of engineered systems.
Research Overview
Research Output Trend
Figures are computed from collected data and may differ slightly.
Selected Papers
15This study investigates the hydraulic conductivity (K) of binary mixed soils containing two different-sized silica particles, with the ultimate goal of developing the porosity (n) and equivalent particle size (deq) estimating formulas for binary mixed soils. Theoretical backgrounds for K of mixed soils were reviewed. In addition, a series of constant head permeameter tests for mixtures with three different size ratios between small and large particles were performed. It is demonstrated that the
The presence of nano-sized particles on the surface of sand grains can significantly influence the mechanical, physical, and chemical behavior of the sand because of the effects of contacts between particles. This study quantified the change in small strain stiffness caused by the presence of iron oxide particles (hematite and goethite) that were chemically sorbed onto uncemented silica sand. Particularly, the change in contact mode between sand particles, caused by the presence of the nanoparti
Research Areas
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