Urban Geo-Informatics (Invited ATC10 Lectures)
doi:10.3850/978-981-07-0188-8_P164
Long-Term Behavior of the Reclaimed Pleistocene Deposits Considering the Subsurface Stratigraphy of Kansai International Airport
Byung-Gon Jeon1 and Mamoru Mimura2
1Department of Civil Engineering, Graduate School of Kyoto University, Gokasho, Uji 611-0011, Japan
2Disaster Prevention Research Institute, Kyoto University,
Gokasho, Uji 611-0011, Japan
ABSTRACT
A series of elasto-viscoplastic finite element analyses is performed to assess the interactive behavior of the reclaimed Pleistocene deposits of the existing 1st phase island of Kansai International Airport due to construction of the adjacent 2nd phase island at 200 offshore of the 1st phase island. The geologically genuine foundation model that has the inclined base overlain by the inclined Pleistocene deposits with irregular thickness is adopted for the numerical analyses. A due attention is also paid to mechanism of the generation/dissipation and propagation of excess pore water pressure in the reclaimed Pleistocene deposits due to construction of offshore reclaimed airport islands. The calculated performance is validated by comparing with the in-situ measured results in the 1st phase island for over 20 years since the start of construction
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