Abstract
Estimation of lateral stress in cohesive soils from in situ tests by using full displacement probes is considered. The stress and pore pressure changes around a penetrating probe are briefly discussedbefore coparisons between data obtained from four different test methods are made. The application of cavity expansion models to the evaluation of lateral stress cone data in clays is evaluated with favorable results. A normalized pore pressure parameter is also introduced as an indicator of k sub 0 conditions. This paper appears in transportation research record no. 1278, Dynamic testing of aggregates and soils and lateral stress measurements 1990.