In the Beginning… There is the Earth
Project characteristics: The section studied (work package #2) links Auvers-le-Hamon (département of Sarthe, near Sablé-sur-Sarthe) to Loiron (département of Mayenne, near Laval) over a 77 km route and includes 10 non-linear structures and 90 earth structures (cuttings / embankments).
Our mission : Carrying out in situ investigations, 723 soundings (5,803 m of destructive and cored boreholes, 1,349 pressiometric tests), 29 seismic profiles, 2,225 m of deferred diagraphies, and 3,224 laboratory tests (water contents, granulometric analyses, VBS measurements, measuring Atterberg limits, normal Proctor tests, IPI measurements, oedometric tests, straight-line shear tests, triaxial tests).
Writing a G12 pre-project geotechnical study report concerning the earthworks and the stability of the cutting banks, the re-use of materials (including volumes), the stability and settlement of the embankments, the foundations for the non-linear structures, the stability of the retaining and hydraulic structures and the permanent way bases.
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