American Society of Civil Engineers


Evaluation of Long-Term Settlement of the Quasi-Overconsolidated Pleistocene Clay Deposits in Osaka Port


by Mamoru Mimura, (Associate Professor, Disaster Prevention Research Institute of Kyoto University, Gokasho Uji, Kyoto, 611-0011, Japan E-mail: mimura@geotech.dpri.kyoto-u.ac.jp) and Wooyoung Jang, (Graduate student, Kyoto University, Department of Civil Eng., Japan E-mail: jangwy@geotech.dpri.kyoto-u.ac.jp)
Section: Time Effects, pp. 98-122, (doi:  http://dx.doi.org/10.1061/40797(172)5)

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Document type: Conference Proceeding Paper
Part of: Geomechanics: Testing, Modeling, and Simulation
Abstract: The most difficult problem is that a delayed compression of Pleistocene clays continues even when the total overburden remains less than σ’p. A new procedure is introduced to describe the delayed compression of Pleistocene clays. A series of numerical analyses in terms of the elasto-viscoplastic finite element method is conducted to simulate this time-dependent behavior. The procedure is applied to the long-term deformation that has been monitored at the Maishima Reclaimed Island in Osaka Bay. The calculated results describe well the monitored long-term settlement of each Pleistocene marine clay layer.


ASCE Subject Headings:
Aging (material)
Clays
Constitutive models
Finite element method
Japan
Measurement
Overconsolidated soils
Settlement