CONSOLIDATION AROUND SAND DRAINS IN NON-DARCIAN SOILS.

The effect of non-Darcian flow on the consolidation behavior of clay soils is evaluated for conditions of radial drainage only and combined radial and vertical drainage. This is accomplished by postulating a reasonably general four-parameter velocity-gradient relationship, which by proper choice of parameters is capable of characterizing much of the published experimental data on the flow of water through clay soils, and combining this relationship with the other standard assumptions of classical consolidation theory to develop a nonlinear parabolic partial differential equation, which is solved by use of finite difference procedures.