The coupled mechanics of fluid-filled granular media controls the physics of many Earth systems such as saturated soils, fault gouge, and landslide shear zones. It is well established that when the pore fluid pressure rises, the shear resistance of fluid-filled granular systems decreases, and as a result catastrophic events such as soil liquefaction, earthquakes, and accelerating landslides may...

Gaseous loss of N leads to lower nitrogen use efficiency (NUE) applied urea and content the soil. This laboratory study was conducted compare losses from two tropical soil series (Bungor sandy clay loam Selangor clay) incubated with either liquid (LU) or granular (GU) at 0, 300, 400, 500 mg/kg for thirty days. The NH3 volatilization, N2O emission, in soils were measured throughout incubation pe...

Seepage-induced instabilities pose a challenge in many geotechnical applications. Particle-scale mechanisms govern the initiation of instability. However, current understanding is based on macro-scale perspective that draws continuum mechanics. Recent developments imaging and numerical analysis can provide particle-scale fundamental needed to develop comprehensive insight. This contribution dem...