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Article
Measurement of Relative Humidity to Monitor Salt Migration in Unsaturated Porous Media
When aqueous sodium chloride evaporates, crystals can form. Salt crystallisation can take place within voids resulting in subflorescence which can culminate in surface heave, or can lead to efflorescence on ex...
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Article
Velocity fields of granular flows down a rough incline: a DEM investigation
This paper describes a statistical method to explore the velocity profiles of granular flows down rough inclines. Using 3D Discrete Element Method (DEM), granular material is released from a box onto a slope a...
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Article
Alcohol’s effect on the hydraulic conductivity of consolidated clay
Centrifuge tests were carried out to determine the effect of different alcohols and one glycol on a thin consolidated disc of clay. The evolution of changes in the clay hydraulic conductivity with time was inv...
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Chapter
A DEM Study of Compaction Band Formation
Thin zones of localised compaction have been observed in the field and were associated with regions of severe grain crushing or microcracking. They were found to occur inside cemented granular materials and ha...
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Article
Evaluation of landslide triggering mechanisms in model fill slopes
Hong Kong is particularly susceptible to landslide risk due to the steep natural topography and prolonged periods of high intensity rainfall. Compounding the risk of slope failure is the existence of loose fil...
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Chapter and Conference Paper
Communicating Hydrocephalus: The Biomechanics of Progressive Ventricular Enlargement Revisited
This article investigates the physical mechanisms involved in the chronic ventricular enlargement that accompanies communicating hydrocephalus (CH) — including its normal and low-pressure forms. In particular,...
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Article
Effect of particle size distribution on pile tip resistance in calcareous sand in the geotechnical centrifuge
Until recently, the micro mechanical origins of soil behaviour have remained illusive, but it is now known that that the constitutive behaviour of a soil is largely determined by its particle size distributio...
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Article
A micro mechanical model for isotropic cyclic loading of isotropically clastically compressed soil
This paper presents a simple micro mechanical model for the behaviour of overconsolidated soils. The simplest case of isotropic unloading and reloading is considered for a soil which has been subjected to iso...
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Chapter and Conference Paper
Clastic Mechanics
A study has been made of the micro mechanical origins of hardening in aggregates which comprise elastic-brittle grains. We consider the compression of an aggregate of uniform grains and explain hardening at ve...
