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LEAP-ASIA-2019 Centrifuge Tests at University of Cambridge
Two dynamic centrifuge tests were conducted on a 5° liquefiable slope with a slope depth of 4 m at the centre line, as part of LEAP-ASIA-2019 at the Schofield Centre, University of Cambridge. The main purpose of these tests was to investigate the suitability of the generalised scaling laws proposed by Iai et al. (Geotechnique, 55(5):355–362, 2005). The two tests were carried out at two drastically different g levels, CU Model B at 80 g and CU Model B1 at 1 g, with corresponding virtual scaling factors of 0.5 and 40, respectively. Following the principles of generalised scaling, results from both tests should be representative of the same slope profile with a slope depth of 4 m previously tested as part of LEAP-UCD-2017. CU Model B exhibited typical liquefaction behaviour with substantial reduction in acceleration transmission along the depth of the slope coupled with considerable excess pore pressure build-up during shaking. For a similar input motion, the slope in CU Model B1 at 1 g showed little deformations. Intensity of the input motion had to be increased by nearly twofolds to trigger slope movements that can be measured by PIV.
LEAP-ASIA-2019 Centrifuge Tests at University of Cambridge
Two dynamic centrifuge tests were conducted on a 5° liquefiable slope with a slope depth of 4 m at the centre line, as part of LEAP-ASIA-2019 at the Schofield Centre, University of Cambridge. The main purpose of these tests was to investigate the suitability of the generalised scaling laws proposed by Iai et al. (Geotechnique, 55(5):355–362, 2005). The two tests were carried out at two drastically different g levels, CU Model B at 80 g and CU Model B1 at 1 g, with corresponding virtual scaling factors of 0.5 and 40, respectively. Following the principles of generalised scaling, results from both tests should be representative of the same slope profile with a slope depth of 4 m previously tested as part of LEAP-UCD-2017. CU Model B exhibited typical liquefaction behaviour with substantial reduction in acceleration transmission along the depth of the slope coupled with considerable excess pore pressure build-up during shaking. For a similar input motion, the slope in CU Model B1 at 1 g showed little deformations. Intensity of the input motion had to be increased by nearly twofolds to trigger slope movements that can be measured by PIV.
LEAP-ASIA-2019 Centrifuge Tests at University of Cambridge
Tobita, Tetsuo (editor) / Ichii, Koji (editor) / Ueda, Kyohei (editor) / Madabhushi, Gopal S. P. (author) / Haigh, Stuart K. (author) / Boksmati, Jad I. (author) / Garcia-Torres, Samy (author) / Fusco, Alessandro (author)
Liquefaction Experiments and Analysis Projects Workshop ; 2019 ; Osaka, Japan
Model Tests and Numerical Simulations of Liquefaction and Lateral Spreading II ; Chapter: 5 ; 131-150
2024-02-24
20 pages
Article/Chapter (Book)
Electronic Resource
English
Centrifuge Model Tests at Zhejiang University for LEAP-ASIA-2019
| Springer Verlag | 2024