IN-SITU UNDRAINED SHEAR STRENGTH OF TWO MARINE CLAYS

It is noted in this discussion of the original paper, that an effective and versatile approach to establish undrained shear strength behavior with due consideration given to in-situ structural anisotropy, stress history, and mode of shearing is the utilizaiton of the so-colled Direct Simple Shear Anisotropy Tests (DSSAT). In these tests, an undisturbed simple shear specimen is cut as it is extruded from the sampling tude at the desired orientation from horizontal, reconsolidated to those in-situ normal and shear stresses associated with the alpha-l-plane, and then sheared either in the same direction or in the opposite direction of consolidation shear stresses. Thus, the full spectrum of undrained shear strength as a function of mode of shearing is obtained. The DSSAT data can be appropriately related to triaxial compression and extension data through the angle of rotation of principal planes during shear, where triaxial compression and extension tests constitute the extreme boundaries.

Availability:
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Corporate Authors:
American Society of Civil Engineers

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New York, NY United States 10017-2398
Publication Date: 1977-4

Media Info

Features: Appendices; Figures; References;
Pagination: p. 360-361
Serial:
- Journal of Geotechnical and Geoenvironmental Engineering
- Volume: 103
- Issue Number: GT4
- Publisher: American Society of Civil Engineers
- ISSN: 1090-0241
- Serial URL: http://ojps.aip.org/gto

Subject/Index Terms

TRT Terms: Anisotropy (Physics); Compression; Marine clays; Shear stress; Stresses; Undisturbed samples; Undrained shear strength
Uncontrolled Terms: Shearing; Triaxial compression
Old TRIS Terms: Anisotropy; Normal stress
Subject Areas: Geotechnology; Highways;

Filing Info

Accession Number: 00156164
Record Type: Publication
Report/Paper Numbers: Proc. Paper 12431 Proceeding
Files: TRIS
Created Date: Feb 16 1978 12:00AM