agreement ingv-dpc 2007-2009 project s4: italian strong motion data base task 3 site...
TRANSCRIPT
Agreement INGV-DPC 2007-2009
Project S4: ITALIAN STRONG MOTION DATA BASE
TASK 3 Site characterization with surface waves methods
RU8-GFZin cooperation with RU1-MiPv
& RU5-Unibas
Siena meeting, 28-29 April 2010
EDL 24bit + Mark L4C-3D 1Hz
The instrumentation
Example of array 2D
ESAC (Aki, 1957)
FK (Lacoss et al., 1969; Capon, 1969)
Rayleigh waves dispersion curve
HVSR
+(Nogoshi and Igarashi 1971, Nakamura, 1989)
(Parolai et al. 2005)Joint Inversion (GA)
S-waves velocity profile
Just a summary of the methods ...
Site Station Code
Norcia NRZI
Grumento Nuova
GRM
Sant Arcangelo SNA
Lagonegro LGN
Cattolica CTL
Argenta ARG
Faenza FAZ
Modena MDN
Novellara NVL
Bevagna BVG
Bazzano BZZ
Onna ONNA
12 Investigated sites
VS30 = 557 m/s
NRZI - NORCIA
RAN
f0 = 0.72 Hz
GRM – Grumento Nova
VS30 = 282 m/sca.100 m
RANf0 = 0.59 Hz
ca.100 m
SNA – Sant’Arcangelo
VS30 = 419 m/sRANf0 = 0.34 Hz
LGN – Lagonegro
VS30 = 451 m/sRAN
CTL - Cattolica
VS30 = 208 m/sRAN
ca.250 m
f0 = 1.16 Hz
ARG - Argenta
VS30 = 170 m/sRANf1 = 0.98 Hz
f0 = 0.34 Hz
FAZ - FAENZA
VS30 = 292 m/sRAN
ca.70 m
MDN - Modena
VS30 = 212 m/sRANf0 = 0.65 Hz
NVL - Novellara
VS30 = 190 m/s
RAN
f0 = 0.65 Hz
Deliverable 6
BVG - BEVAGNA
VS30 = 160 m/sf0 = 0.35 Hzf1 = 1.22 Hz
BZZ - BAZZANO
VS30 = 679 m/sRAN
ONNA
VS30 = 378 m/sf0 = 2.5 Hz
Summary ...
... and thanks for the attention!
Site Station Code
Subsoil Class fo (Hz)
Norcia NRZI B 0.72Grumento
Nuova GRM C 0.59
Sant Arcangelo SNA B 0.34
Lagonegro LGN B -
Cattolica CTL C 1.16Argenta ARG D 0.98Faenza FAZ C -
Modena MDN C 0.65Novellara NVL C 0.65Bevagna BVG D 1.22Bazzano BZZ B -
Onna ONNA B 2.5