Assessment of the Efficiency of Consolidation Treatment through Injections of Expanding Resins by Geotechnical Tests and 3D Electrical Resistivity Tomography

Figure 5

Variations of resistivity values at different intermediate times T1, T2, and T3, with respect to their preinjection T0 values in the 50 × 50 cm cells for the portion of the mesh around the F7 point. Average resistivities are calculated in increasing cubic volumes (1 m: average value (a), 2 m: average value (b), and 3 m: average value (c)). Injection characteristics: in F5, F6 24 kg at −1.50 m, in F7, F8 F9 25 kg at −1.5 m + 25 kg at −2.5 m.