LOGGING IN PRESSIOMETER BOREHOLES

DIAGRAPHIES DANS LES FORAGES PRESSIOMETRIQUES

THE AIM OF THE RESEARCH IS TWO-FOLD: (1) TO CONTINUE TESTS ON THE PROTOTYPE PENETRO-GAMMADENSITOMETER ALLOCATED TO THE REGIONAL LABORATORY IN BORDEAUX DURING 1978. TESTS WILL BE FIRST CONDUCTED IN FINE SOILS (MUD - CLAY - SILT) ON UNDISTURBED SAMPLES WHICH PERMIT DENSITY TO BE MEASURED. (2) TO CONTINUE THE PROGRAMME OF USE OF GAMMA-GAMMA AND NN PROBES STARTED IN 1978. THE MEASUREMENTS WILL BE CARRIED OUT ON TWO SITES IN THE ROUEN REGION AND EVALUATED FROM A QUALITATIVE, QUANTITATIVE AND ECONOMIC POINT OF VIEW.