Geotechnical and geophysical characteristics of muskeg samples from Alberta, Canada

Jong-Sub Lee, Sun Young Seo, Changho Lee

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

A series of laboratory tests have been performed to explore the geotechnical and geophysical characteristics of fibrous muskeg (i.e., grassy bog), using undisturbed block samples obtained from Alberta, Canada. The basic index properties of muskeg show similar values to the reference data for other organic soils, and they significantly differ from those of typical inorganic soils. Due to high organic content, muskeg has high water content, high compressibility, and high initial permeability. The effective stress and porosity play a major role in controlling the stress-dependent geophysical properties of shear wave velocity, real permittivity, and electrical conductivity. The values of peak drained friction angle obtained in the direct shear tests are in the range of 26° to 51°.

Original languageEnglish
Pages (from-to)135141
Number of pages1
JournalEngineering Geology
Volume195
DOIs
Publication statusPublished - 2015 Sep 1

Keywords

  • Compressibility
  • Muskeg
  • Permeability
  • Shear strength
  • Shear wave velocity
  • Stress dependent parameters

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Geology

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