题 目：Effect of seismic liquefaction on the built environment and the lessons learnt from the Magnitude 9.0 the East Japan (311 Tohoku) earthquake
报告人：Dr. Subhamoy Bhattacharya, Senior Lecturer
单 位：英国布里斯托尔大学（University of Bristol）
Dr Bhattacharya is a Senior Lecturer in Dynamics at University of Bristol. He is currently visiting professor at Tongji University (China) researching on the behaviour of bridge foundations during the past major earthquakes. The visit is jointly funded by Royal Society (UK) and National Science Foundation (China) and his host is Prof Yu Huang.
At Bristol, Dr Bhattacharya teaches and conducts research in the broad area of Dynamic-Soil-Structure Interaction with a focus on (a) Dynamics of Offshore Wind Turbine Foundations; (b) Pile instability during seismic liquefaction. Prior to taking up his current post, he was a Departmental Lecturer in Engineering Science at Oxford University, Junior Research Fellow of Somerville College (Oxford), Lecturer in Lady Margaret Hall (Oxford) and Brasneose College (Oxford).
Before joining the University of Oxford, Dr Bhattacharya worked at Fugro Limited (UK) and was involved in various offshore projects such as the Deep Water Gunashli (Azeri Chirag and Gunashli Project), Judy Platform, Munro platform, anchor piles for FPSO. In 2004, he was appointed 21st Century Centre of Excellence fellow at the Centre for Urban Earthquake Engineering (CUEE) at the Tokyo Institute of Technology. Dr Bhattacharya obtained his doctorate from the University of Cambridge (U.K) in the year 2003.
Dr Bhattacharya was in Tokyo in the 9th Floor of a hotel building in Oimachi during the magnitude 9.0 earthquake. Next day early morning, he (along with his Japanese colleagues) carried out a survey in the Tokyo Bay, Urayasu and Shinkiba area where wide spread seismic liquefaction were observed. The observations were unique as repair work had not been started. He made a second visit to Sendai, Onagawa and other affected areas to study the tsunami induced damages and other earthquake related damages. This talk will focus on two issues: (a) Presenting the observed damages of the failures; (b) Lessons learnt from the Japan earthquake which is presented in the paper Bhattacharya et al (2011).
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