The joint evaluation of some pore water pressure and cone resistance dissipation test records

The first evaluation results of a raw CPTu (rheological type) data set are presented consisting of about 70 pairs of non-monotonic u2 dissipation test data and the simultaneously measured cone resistance data. The statistical evaluation was made using the parameters of three models (a theoretically explained empirical model for the rheological cone resistance data, two u3 dissipation test evaluation models(with monotonic and non-monotonic time variation). The non-monotonic dissipation test data were double evaluated, separately for the whole curve and the monotonic part only. The coefficient of consolidation identified with these models was used to characterize the soil type, in the lack of plasticity index information