The purpose of the present work was to determine thermal performance borehole heat exchangers, considering influences their geometric configurations and thermophysical properties soil, grout pipe wall material. A three-dimensional model developed for mass transfer in soil (a porous medium) grout, together with one-dimensional conductive through walls convective fluid circulating pipes. An algor...

Stabilisation/solidification (S/S) of heavy metals and a parallel biodegradation of an organic contaminant using Magnesium phosphate cements (MPC) was investigated under laboratory conditions. The study was aimed at improving the robustness of S/S technology by encouraging biodegradation in order to bring about some form of contaminant attenuation over time. A silty sand soil, amended with comp...

the load transfer mechanisms of cable bolts differ from those for normal rebar bolts. the cable bolts used in mines are basically steel strands with different constructions depending on the number of wires or elements and the way they are laid. tendon bolts (rebar and cable) are normally evaluated for their strength and load transfer properties. the tendon strength can be evaluated by the tensi...

This paper describes an approach for predicting the diameter of a jet-grout column using support vector regression (SVR) technique, which is regarded as novel learning machine based upon recent advances in statistical theory, combined effects construction (construction methods and jetting parameters) soil properties (soil type shearing resistance) are considered. Four different kernel functions...