Method of calculating pile fields and other vertically reinforced soil masses

Abstract

A method is proposed for calculating the stabilization (reinforcement) of bases with layers of highly compressible soils by vertical strengthened elements in the form of ordinary, bored castin-situ, or auger-injected piles, punch holes, granular drains, etc. Such reinforcement reduces severalfold settlements and consolidation time of a weak base and also increases its resistance to horizontal (including dynamic) loads. The heads of the reinforcing elements can be embedded into the base as well as broadened (with “caps”) or joined by a ground beam. The soil deformation model in the ARM93 program takes into account nonlinearity under compression and shear as well as dissipation of the initial excess pore pressures initiated by the placement of fill and other preliminary loads. The authors developed “COMPGEO” applications programs for solving the main geotechnical problems on a computer. The programs realize adequate nonlinear models of soils and as a variant carry out the calculations according to the existing building codes SNiP.