This study used a finite element analysis approach employing Plaxis 3D to analyze the stress concentration ratio, critical parameter in geotechnical engineering, examine stresses operating on stone columns and soft soils. also looked at effect of stiffness ratio between column neighboring soil. With same length three different diameters, 0.8 m, 1.0 1.2 or area replacement ratios ranging from 7%...

Abstract Purpose Information about particle size distribution (PSD) and soil texture is essential for understanding drainage, porosity, nutrient availability, trafficability. The sieve-pipette/gravimetric method traditionally used analysis labour-intensive resource-intensive. X-ray fluorescence (XRF) spectrometry may provide a rapid alternative. study’s aim was to examine the use of XRF determi...

Plants regularly experience suboptimal environments, but this can be particularly acute on highly-disturbed mine sites. Two North American willows—Salix discolor Muhl. (DIS) and S. eriocephala Michx. (ERI)—were established in common-garden field tests on two adjacent coal mine spoil sites: one with high clay content, the other with shale overburden. The high clay content site had 44% less produ...

A near-surface layer of vesicles may be found in many dryland soils, often below a stony desert pavement During and after rain the uppermost part of the regolith develops a surface seal, trapping air which is eompressed and which may also subsequently expand as a result of solar heating. This results in the deformation of the soft regolith and the formation of a vesicular layer just helow the s...