VOLUME CHANGE BEHAVIOR OF COLLAPSIBLE COMPACTED GNEISS SOIL

This experiment investigated the mechanical behavior of a compacted metastable-structured residual gneiss soil. Volume changes were investigated using both a conventional oedometer cell and a triaxial permeameter system where the stress state variables were independently controlled. Wetting stress paths were utilized to reflect field conditions associated with collapsing earth structures. The compacted specimens were consolidated under both isotropic and k-sub-0-oedometer conditions. Measurements of total volume change and water content change were made at specified matric suction values following a wetting stress path under a given loading. The experimental data were analyzed to define volume change constitutive relationships for the metastable-structured soil. Best-fit modeling was used for predicting the volume change behavior of the compacted metastable-structured residual soil during wetting-induced collapse. The measured data are discussed from both phenomenological and microscopic viewpoints. Predictions of the best-fit models are compared with experimental results.

• 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:
  • Pereira, JHF
  • FREDLUND, D G
• Publication Date: 2000-10

Language

• English

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: p. 907-916
• Serial:
  • Journal of Geotechnical and Geoenvironmental Engineering
  • Volume: 126
  • Issue Number: 10
  • Publisher: American Society of Civil Engineers
  • ISSN: 1090-0241
  • Serial URL: http://ojps.aip.org/gto

Subject/Index Terms

• TRT Terms: Collapsible soils; Compacted soils; Experiments; Gneiss; Laboratory tests; Moisture content; Permeameters; Residual soils; Soil mechanics; Triaxial shear tests; Volume changes
• Subject Areas: Geotechnology; Highways; Pipelines; I42: Soil Mechanics;

Filing Info

• Accession Number: 00800584
• Record Type: Publication
• Contract Numbers: GT-2, CMS-9604684, 65V495
• Files: TRIS
• Created Date: Oct 11 2000 12:00AM