An a posteriori error estimator for plane-strain geotechnical analyses

摘要

In this paper, an a posteriori error estimator suitable of ruse in geotechnical engineering has been developed. This error criterion is based on the superconvergent patch recovery method with equilibrium and boundary conditions method, taking into account Biot's coupled consolidation theory . After testing on several problems, the introduction of pore pressures and other parameters into the error estimator was found to improve results significantly, providing a convergence rate of approximately tow orders higher than the global rate.