NUMERICAL SIMULATION OF LIQUEFACTION-INDUCED DEFORMATIONS

The observed dynamic response of an instrumented site at Port Island during the 1995 Kobe earthquake was utilized to demonstrate the feasibility of computer simulation of earthquake-induced site response and liquefaction-induced deformations of a level ground site. Nondestructive in situ electrical and shear wave velocity methods were used to obtain the initial state parameters and constitutive model constants representative of the site. The analysis used the fully coupled, effective stress-based, nonlinear, finite-element program SUMDES with a reduced-order bounding surface hypoplasticity model to simulate the stress-strain behavior of cohesive soils and a modified reduced-order bounding surface hypoplasticity model to simulate the stress-strain behavior of noncohesive soils. The results of the dynamic analysis, such as acceleration time histories and liquefaction-induced deformations, agreed reasonably well with the acceleration time histories and liquefaction-induced vertical and horizontal deformation behaviors observed during the Kobe earthquake. The results of this study show that computer simulation of earthquake effects at level ground sites is possible using nondestructive in situ testing and a verified numerical procedure.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/3519342
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Arulanandan, K
  • Li, X S
  • Sivathasan, K
• Publication Date: 2000-7

Language

• English

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: p. 657-666
• Serial:
  • Journal of Geotechnical and Geoenvironmental Engineering
  • Volume: 126
  • Issue Number: 7
  • Publisher: American Society of Civil Engineers
  • ISSN: 1090-0241
  • Serial URL: http://ojps.aip.org/gto

Subject/Index Terms

• TRT Terms: Computer programs; Deformation curve; Earthquake engineering; Earthquakes; Electrical measurement; Field tests; Finite element method; Infrastructure; Liquefaction; Nondestructive tests; Pore water pressures; Porosity; Simulation; Void ratios
• Geographic Terms: Kobe (Japan)
• Subject Areas: Bridges and other structures; Design; Geotechnology; Highways; I24: Design of Bridges and Retaining Walls; I42: Soil Mechanics;

Filing Info

• Accession Number: 00795681
• Record Type: Publication
• Contract Numbers: CSM 9115316, CES 8711764, MMS-8817900
• Files: TRIS
• Created Date: Jul 17 2000 12:00AM