ABSTRACT

Calibration Chamber tests (CC) provide an effective way to study Cone Penetration Test (CPT) in sands under strictly controlled conditions (material, density, stress state and boundary). Results from CC tests are used to establish relationships between the observed outcomes like cone resistance (qc), and the material descriptors like relative density (DR) and effective stress state (σ’). Typical boundary conditions applied in CC differ on whether stresses are kept constant or displacements are zero on the lateral and top/bottom sample boundaries (Table 1).