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1.8
1.6
Spectral accelerationSa(g)
SpectralaccelerationSa(g)
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
UM_EWSouthernportion2DpointA
VN_NSSouthernportion2DpointA
UM_EWSouthernportion2Dpoint
BVN_NSSouthernportion2Dpoint
B AverageSouthernportion2D
pointAAverageSouthernportion
2DpointB
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
PeriodT(s)
Figure 5. Spectral accelerations from 2D analyses.
AverageSouthernportion1D
AverageSouthernportion2DpointA
AverageSouthernportion2DpointB
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
PeriodT (s)
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, Davis.
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Figure 6. Comparison between 1D and 2D spectral accelerations.
4 CONCLUSION
The paper illustrates the potential of the seismic dilatometer to
efficaciously approach a geotechnical problem by means of the
results analyses. While
V
S
appears less sensible to both the
stress history and the deposits stiffness,
M
gives precious in-
formation on soil stiffness, while
Kd
provides for important de-
tails about the deposits overconsolidation. Combining SDMT
results with laboratory data it has been possible to evaluate the
the local site effects by means of 1D and 2D seismic site res-
ponse analyses of the Justice Court. These numerical analyses
indicates that in complex stratigraphic and topographic condi-
tions, it appear appropriate to combine 1D and 2D methods.
5 ACKNOWLEDGEMENTS
This study was founded by Provincia di Chieti and Studio Prof.
Marchetti s.r.l.
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