Open caisson shafts are a widely adopted solution for range of geotechnical applications. An external ‘cutting shoe’ is common construction feature used to reduce the soil frictional resistance acting on during sinking. This forms an annular void encircling which filled with support fluid maintain excavation stability. The primary aim this paper explore influence cutting shoe geometry resulting...

The load displacement relationship of shallow rigid strip anchors embedded in sands and subjected to uplift pressures has been examined by using the finite element method. The soil medium is modeled as a linear elastic-perfect plastic material following Mohr-Coulomb failure criterion and an associated flow rule. The computed load displacement response is presented in non-dimensional form. The u...

In this study, we demonstrate a novel fabrication method to prepare metallic Janus silica particles by embedding nanosized silica particles on a spherical polystyrene (PS) substrate in supercritical carbon dioxide (sc CO2), followed by labelling with gold nanoparticles on the exposed part of the silica colloids. To this end, three main types of Janus particles displaying two distinct surfaces a...

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...

the asymmetric problem of rocking rotation of a circular rigid disk embedded in a finite depth of a transversely isotropic half-space is analytically addressed. the rigid disk is assumed to be in frictionless contact with the elastic half-space. by virtue of appropriate green's functions, the mixed boundary value problem is written as a dual integral equation. employing further mathematica...

This study examines the influence of impact-driven installation on subsequent horizontal monotonic response small-scale monopiles by using a large-beam geotechnical centrifuge at 100g. A special device including hammer was developed to install open-ended 50 mm in diameter an embedment depth 250 flight, and then apply lateral loading monopile head without stopping centrifuge. The global local re...

Abstract Purpose The purpose of this text is to diagnose the degree which risk management embedded in enterprise system, and particular identify prevention activities taken different domains by enterprises listed on Warsaw Stock Exchange, representing following three sectors: financial services, construction, IT. Design/methodology/approach research was carried out using a triangulation methods...