A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The Seismic Dilatometer Marchetti Test (SDMT) for Evaluating Liquefaction Potential under Cyclic Loading
This paper present a KD-CRR corrected relation for sandy soils potential liquefaction evaluation under cyclic loading, on the basis of previous tentative CRR-KD curves proposed. The new tentative correlation for evaluating CRR from KD, was formulated by combining previous CRR-KD correlations with the vast experience incorporated in current methods based on CPT and SPT for the evaluation of liquefaction potential. The Seismic Dilatometer Marchetti Test (SDMT) has the advantage, in comparison with CPT and SPT tests, to measure independent parameters, such as the Horizontal Stress Index (KD). A re-evaluation of CRR-KD correlation has been also made taking into account the numerous recent SDMT. The results show that the Horizontal Stress Index (KD) is a key-parameter and is very sensitive to potential liquefaction behaviour under cyclic loading. The plotted correlation with critical values of KD is very simple to use for detecting liquefaction potential of soils. CPT, SPT and SDMT data have been then used in the evaluation of the potential liquefaction at San Giuseppe La Rena site in Catania (Sicily, Italy), which is recognized as a typical Mediterranean city at high seismic risk.
The Seismic Dilatometer Marchetti Test (SDMT) for Evaluating Liquefaction Potential under Cyclic Loading
This paper present a KD-CRR corrected relation for sandy soils potential liquefaction evaluation under cyclic loading, on the basis of previous tentative CRR-KD curves proposed. The new tentative correlation for evaluating CRR from KD, was formulated by combining previous CRR-KD correlations with the vast experience incorporated in current methods based on CPT and SPT for the evaluation of liquefaction potential. The Seismic Dilatometer Marchetti Test (SDMT) has the advantage, in comparison with CPT and SPT tests, to measure independent parameters, such as the Horizontal Stress Index (KD). A re-evaluation of CRR-KD correlation has been also made taking into account the numerous recent SDMT. The results show that the Horizontal Stress Index (KD) is a key-parameter and is very sensitive to potential liquefaction behaviour under cyclic loading. The plotted correlation with critical values of KD is very simple to use for detecting liquefaction potential of soils. CPT, SPT and SDMT data have been then used in the evaluation of the potential liquefaction at San Giuseppe La Rena site in Catania (Sicily, Italy), which is recognized as a typical Mediterranean city at high seismic risk.
The Seismic Dilatometer Marchetti Test (SDMT) for Evaluating Liquefaction Potential under Cyclic Loading
Grasso, S. (author) / Maugeri, M. (author)
Geotechnical Earthquake Engineering and Soil Dynamics Congress IV ; 2008 ; Sacramento, California, United States
2008-05-14
Conference paper
Electronic Resource
English
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