Post-Cyclic Consolidation Behavior of Loose Sands

by J. C. Chern, Sinotech Engineering Consultants, Inc, Taipei, Taiwan,
C. C. Lin, Sinotech Engineering Consultants, Inc, Taipei, Taiwan,



Document Type: Proceeding Paper

Part of: Vertical and Horizontal Deformations of Foundations and Embankments

Abstract:

By performing Ko consolidation on samples accumulated various levels of strains and residual pore pressures due to cyclic loading, the post-earthquake settlement characteristics of two loose sands in level ground were studied. It was found that the reconsolidation volumetric strain can be related to the accumulated strain amplitude and residual pore pressure ratio. When accumulated strain amplitude is small or before liquefaction, the reconsolidation volumetric strain is relatively small. For estimating the post-earthquake settlement of loose level ground, liquefaction is a prerequisite to the development of large volume change due to reconsolidation.

Subject Headings: Consolidated soils | Soil settlement | Soil pressure | Soil liquefaction | Strain | Soil stress | Residual soils

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