Before any construction and foundation work for civil engineering, a study of the physical and geological characteristics of the soil is necessary. It is the object of geotechnics which, through various in-situ or laboratory processes, makes it possible to study the mechanics of a soil.
This study will then influence the design of the structure and the choice of foundation processes to be used.
Parameters
On-site instrumentation measures and records in a simple, reliable and precise way:
- Drilling parameters
- Pressure meter tests
- Penetration soundings (CPT / SPT)
- Permeability tests, type Lugeon
Devices
In addition to the apparatus used in drilling parameters, pressure meter tests are carried out by the PREVO and recorded by:
- ADN
- BAP
Sensors
The recording of the various parameters exploited in soil study is carried out by the same sensors as those defined in drilling parameters:
- F82 and D90 for depth
- VR28I for rotation speed
- C16 400 and C16 50 for thrust, injection, holding and torque pressures
- IGH1620 for inclination
- V16AF50 for vibration
- EDH for flow rate and air pressure or injection fluid
Controls
Pressure steps
Technical diagram and results layout
Hover the diagram for more details