SECED 2015 was a two-day conference on Earthquake and Civil Engineering Dynamics that took place on 9-10th July 2015 at Homerton College, Cambridge.
This was the first major conference to be held in the UK on this topic since SECED hosted the 2002 European Conference on Earthquake Engineering in London.
The conference brought together experts from a broad range of disciplines, including structural engineering, nuclear engineering, seismology, geology, geotechnical engineering, urban development, social sciences, business and insurance; all focused on risk, mitigation and recovery.
SECED 2015 featured the following keynote speakers (affiliations correct at the time of the conference):
SECED allows the self-archiving of the Author Accepted Manuscripts (AAM) from the SECED 2015 Conference. This means that all authors can make their conference paper available via a green open access route. The full text of your paper may become visible within your personal website, your institutional repository, a subject repository or a scholarly collaboration network signed up to the voluntary STM sharing principles. It may also be shared with interested individuals, for teaching and training purposes at your own institution and for grant applications (please refer to the terms of your own institution to ensure full compliance).
To deposit your AAM, please adhere to the following conditions:
SECED allows authors to deposit their AAM under the Creative Commons Attribution Non-commercial International Licence 4.0 (CC BY-NC 4.0). The deposit must clearly state that the AAM is deposited under this licence and that any reuse is allowed in accordance with the terms outlined by the licence. To reuse the AAM for commercial purposes, permission must be sought by contacting seced@ice.org.uk. For the sake of clarity, commercial usage would be considered as, but not limited to:
Should you have any questions about our licensing policies, please contact seced@ice.org.uk.

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One of the issues of liquefaction arising after the 2011 off the Pacific Coast of Tohoku Earthquake, Japan, is aging effects on liquefaction resistance of sandy deposits. The aging effects of sandy deposits are considered to be strengthening of micro-structure of soil particles through time, and they would be closely related to the small strain shear moduli. In this study, to investigate the relationship between the liquefaction resistance and the small strain shear moduli, undrained cyclic torsional shear tests and dynamic small strain shear moduli measurements were conducted on boiled silty sand which was retrieved in Urayasu city where significant liquefaction occurred in the 2011 earthquake. In order to artificially enhance the micro-structure of soil particles which would correspond to the aging effects, some specimens were subjected to drained cyclic vertical loading after isotropic consolidation. The small strain shear moduli of the specimens were increased by applying drained cyclic vertical loading, and larger liquefaction resistance was obtained with an increase in the small strain shear moduli. However, such enhanced initial soil structure has little direct effect on the large strain characteristics.