L'essai d'expansion cylindrique et la loi effort déformation des sols purement cohérents

Discussion: Undrained plane-strain expansion of a cylindrcal cavity in clay: a simple interpretation of the pressuremeter test

“…The technique of insertion developed in 1971 is similar to that developed independently by JCzCquel and his colleagues in France for their 'autoforeur' pressuremeter and is reported by Baguelin et al (1972). In our instrument the radial displacement of the membrane, the pressure inside the membrane and the pore-pressure in the soil on the outside surface of the membrane are recorded electrically.…”