Emergent Phenomena in Spatially Varying Soils

by H. K. Kim And J. C. Santamarina
Year: 2007


Kim, H.-K., Narsilio, G. A., and Santamarina, J. (2007). "Emergent Phenomena in Spatially Varying Soils." Geo-Denver 2007: New Peaks in Geotechnics., Denver, CO


​Soils are particulate materials. Grain size determines the balance between particle-level forces (skeletal, weight, van der Walls attraction, double layer repulsion, capillary and viscous drag). Grain size distribution establishes the range of possible particle packing configurations. And, particle shape (i.e., sphericity, angularity and roughness) defines particle interactions, such as slippage vs. rotation, and the development of both inherent and stress-induced anisotropy. Therefore, macro-scale behavior is determined by particle-level characteristics