Monnet Allagnat (2001) Design of a large soil retaining structure in montain area with the help of pressuremeter analysis - Rev. Franc. Géotech.
Download here : https://doi.org/10.1051/geotech/2001095065
Abstract
The design of a large retaining structure is a balance between safety rules, which are used to prevent failure or large displacements and the building cost of the wall. In such a case, the shearing parameters of the soil are very sensitive so that small variations on cohesion or internal angle of friction give large variations on forces supported by the structure.
The pressuremeter analysis is the technique used to measure the internal angle of the gravel. It is assumed that the soil is non cohesive. The design of the retaining wall of Tèche on the A49 Grenoble Valence motorway is made with the friction angle determined by pressuremeter test, which allows the adjustment of the wall to the geotechnical environment. A49 follows the Isère River on the right side and passes along a 1 300 m hill-side in the area of Tèche. Nowadays after 10 years of measurements there is no significant displacements of the retaining walls.