Model for consolidation analysis of layered soils under depth-dependent loading

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A numerical model is presented for one-dimensional large strain consolidation of a layered soil stratum. The algorithm accounts for vertical strain, soil self-weight, conventional constitutive relationships, changing material properties during consolidation, unload/reload, time-dependent loading and boundary conditions, an externally applied hydraulic gradient, and multiple soil layers with different material properties. The model can also accommodate depth-dependent loading and variable preconsolidation stress profiles. Verification checks of the model show excellent agreement with available analytical and numerical solutions for consolidation of soils with multiple layers and depth-dependent loading. An overview of this model is presented and a parametric study is performed to illustrate the effects of large strain and depth-dependent loading on consolidation response of layered soils. The simulations indicate that large errors may occur when stress reduction with depth is not correctly accounted for.

Original languageEnglish (US)
Title of host publicationIFCEE 2015 - Proceedings of the International Foundations Congress and Equipment Expo 2015
EditorsJ. Brian Anderson, Magued Iskander, Muhannad T. Suleiman, Debra F. Laefer
PublisherAmerican Society of Civil Engineers (ASCE)
Pages115-124
Number of pages10
ISBN (Electronic)9780784479087
DOIs
StatePublished - Jan 1 2015
EventInternational Foundations Congress and Equipment Expo 2015, IFCEE 2015 - San Antonio, United States
Duration: Mar 17 2015Mar 21 2015

Publication series

NameGeotechnical Special Publication
VolumeGSP 256
ISSN (Print)0895-0563

Other

OtherInternational Foundations Congress and Equipment Expo 2015, IFCEE 2015
CountryUnited States
CitySan Antonio
Period3/17/153/21/15

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Architecture
  • Building and Construction
  • Geotechnical Engineering and Engineering Geology

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