ABSTRACT
A review of literature revealed inherent difficulties with traditional 1 g test configurations and preparation of large one-dimensionally consolidated clay beds. To mitigate these problems a novel protocol was proposed whereby samples initially generated by one-dimensional consolidation are transferred to a large calibration triaxial cell for isotropic reconsolidation, therefore minimising the effects of anisotropic stress history. Flexible lateral boundary conditions would allow for control of horizontal stresses and subsequent measurement of radial displacement. Furthermore, after isotropic re-consolidation it was proposed to conduct K0 consolidation (simulating surcharge loading) prior to applying an independent small foundation load. The coupled K0 and foundation load on the sample surface required the development of a dual load actuator. A brief description of the test facility developed is described below while a detailed review of this system is reported in Black (2007).
