A system of prefabricated vertical drains (PVDs) with a surcharge load is an effective method for accelerating soil consolidation by promoting radial flow. This study presents a three-dimensional (3D) finite element model for soft soil improved by a single drain. In the finite element analysis, the actual rectangular PVD cross-section is considered, and the equivalent drain diameter is then bac...

In this work, large-scale atomistic modeling is conducted to explore a relatively cold consolidation process: nanoparticles compressed by a stress wave from a sacrificial layer that is ablated by a picosecond laser. The temperature, stress, atomic configuration, and crystallinity are studied in detail to understand the structural behaviors under extreme compression. Study of the temperature and...

A technique to estimate the radial dependence of the noise power spectrum of images is proposed in which the calculations are conducted solely in the spatial domain of the noise image. The noise power spectrum averaged over a radial spatial-frequency interval is obtained from the variance of a noise image that has been convolved with a small kernel that approximates a Laplacian operator. Recurs...

Previous studies have revealed that prefabricated vertical drains (PVDs) are effective in stabilizing the soft subgrade soils under traffic-induced cyclic loads. A consolidation model of clays loading incorporating both radial and drainages, nonlinear variation compressibility permeability is presented this paper. The prediction matches well with result from a large-scale triaxial test conducte...

Abstract: Complex layered structures of tailings ponds and their vertical and horizontal flow conditions for the pore water require to overcome the 1 dimensional modeling of the consolidation process. A two-dimensional radial symmetric numerical model (Consol2D) based on a fully three-dimensional approach is introduced and practical results are discussed. Special attention is given to the valid...