Measurement device by pressurizing the subsoil and method for carrying out an associated pressurization test

A measuring device for pressurizing the subsurface, comprising:

• at least one pressiometric probe intended to be inserted into a borehole in the subsurface, said pressiometric probe comprising at least one deformable cell,
• a fluid reservoir comprising a container and a volume of fluid contained in the container,
• a transfer unit configured to introduce the fluid from the fluid reservoir inside the deformable cell, said unit comprising a transfer member including a suction line fluidly connected to said fluid reservoir, and a discharge line fluidly connected to the deformable cell,
• a unit for measuring the volume of fluid transferred from the fluid reservoir to the inside of the deformable cell,
• wherein the unit for measuring the volume of fluid comprises a device for measuring the mass of the fluid reservoir.