Chapter
Apr 26, 2012
Modeling and Seismic Response Analysis of a Reclaimed Artificial Ground
Authors: Toshihiro Noda [email protected], Akira Asaoka [email protected], and Kentaro Nakai [email protected]Author Affiliations
Publication: Soil Dynamics and Earthquake Engineering
Abstract
Compared with natural grounds formed by sedimentation over many years, reclaimed artificial grounds are often weak. In this work, modeling of a reclaimed offshore artificial ground and its seismic response analysis were carried out, and the vulnerability of the weak reclaimed layers to seismic activity is pointed out. This study was carried out using a soil-water coupled finite deformation analysis program GEOASIA incorporating an elasto-plastic constitutive model (the SYS Cam-clay model). This model is capable of describing, within a single framework, the behaviors of sands, clays, and intermediate soils consisting of sand/clay mixtures through their soil skeleton structures (structure, overconsolidation, anisotropy) and its works. In reclaimed sand, lateral flow and upward lifting of lightweight underground structures occur because of liquefaction during an earthquake. In reclaimed clay, long-term settlement, which continues for several years after the earthquake, occurs.
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© 2010 American Society of Civil Engineers.
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Published online: Apr 26, 2012
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ASCE Technical Topics:
- Clays
- Earthquake engineering
- Ecosystems
- Engineering fundamentals
- Environmental engineering
- Foundation construction
- Foundations
- Geomechanics
- Geotechnical engineering
- Land reclamation
- Seismic effects
- Seismic tests
- Soil dynamics
- Soil mechanics
- Soil mixing
- Soil properties
- Soil settlement
- Soils (by type)
- Structural behavior
- Structural engineering
- Tests (by type)
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Professor, Department of Civil Engineering, Nagoya University, Furo, Chikusa, Nagoya, JAPAN, 464-8603.E-mail: [email protected]
Professor, Department of Civil Engineering, Nagoya University, Furo, Chikusa, Nagoya, JAPAN, 464-8603.E-mail: [email protected]
Assistant Professor, Department of Civil Engineering, Nagoya University, Furo, Chikusa, Nagoya, JAPAN, 464-8603.E-mail: [email protected]
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