SOIL DYNAMICS

DYNAMIQUE DES SOLS

THE OBJECT OF THE RESEARCH IS TO STUDY THE BEHAVIOUR OF SOIL SUBJECTED TO DYNAMIC STRESSES. THE LABORATORY AND IN-SITU TESTS STARTED IN 1978 WILL BE CONTINUED IN 1979. THE AIMS OF THE TESTS ARE: (1) TO STUDY THE PROPAGATION OF VIBRATIONS IN SOIL BY MEANS OF IN-SITU MEASUREMENTS; (2) TO STUDY THE EVOLUTION OF THE MECHANICAL CHARACTERISTICS OF DRY SAND AS A FUNCTION OF THE DYNAMIC STRESSES APPLIED (TRIAXIAL TESTS); (3) TO DEVELOP LIQUEFACTION TESTS (TRIAXIAL TESTS). A DYNAMIC TRIAXIAL PRESS WILL BE INSTALLED IN NANTES IN 1979.