GNGTS 2018 - 37° Convegno Nazionale

GNGTS 2018 S essione 2.2 419 Unit Lithology Depth Vs γ G/G 0 D (%) (m) (m/s) (kN/m 3 ) Colluvium silt 0-6 300 20 Gruppo di Lavoro Gruppo di Lavoro MS–AQ (2010) MS–AQ (2010) Gravel A gravel 6-37 400-500 20 Rollins et al. (1998) Rollins et al. (1998) Conglomerate calcareous 37-150/180 700-750 20 Modoni and Modoni and conglomerate Gazzellone (2010) Gazzellone (2010) and breccia Limestone stratified >150/180 1300 23 Linear elastic Cost = 0.5% seismic detrital behavior bedrock limestone (G 0 =4000 MPa) Unit Lithology Depth Vs γ G/G 0 D (%) (m) (m/s) (kN/m 3 ) Colluvium silt 0-6 300 20 Gruppo di Lavoro Gruppo di Lavoro MS–AQ (2010) MS–AQ (2010) Gravel B gravel 6-9 550 20 Rollins et al. (1998) Rollins et al. (1998) upper G/G 0 e lower D upper G/G 0 e lower D Gravel A gravel 9-37 400-500 20 Rollins et al. (1998) Rollins et al. (1998) Conglomerate calcareous 37-150/180 700-750 20 Modoni and Modoni and conglomerate Gazzellone (2010) Gazzellone (2010) and breccia Limestone stratified >150/180 1300 23 Linear elastic Cost = 0.5% seismic detrital behavior bedrock limestone (G 0 =4000 MPa) Tab. 1 - The subsoil models A1 and B1 characterized by the layer “Gravel A” and the seismic bedrock depth about 150 and 180 m, respectively. Tab. 2 - The subsoil models A2 and B2 characterized by the layers “Gravel A” and “Gravel B” and the seismic bedrock depth about 150 and 180 m, respectively. Fig. 2 - G/G 0 -γ and D-γ diagrams used for the 1D modelling of the Colluvium, Gravel A, Gravel B and Conglomerate reported in Tabs. 1 and 2.