Location of Repository

A comparative study between the NGI direct simple shear apparatus and the Mikasa direct shear apparatus

By Hideo Hanzawa, Nigel Nutt, Tom Lunne, Y.X. Tang and Michael (Michael M.) Long

Abstract

A comparative study of the NGI Direct Simple Shear Test (DSST) and the Mikasa Direct Shear Test (DST) is reported. Samples from Norwegian Drammen clay and Japanese Ariake clay were subjected to both types of test. An evaluation of these test results and a theoretical consideration on the different shearing mechanisms has shown that although the DST give generally higher stiffness and strength than the DSST, these differences can mainly be accounted for by the different shearing mechanisms and shearing rates. Sample disturbance due to transportation and handling may also be the reason for some of the difference. Tests on undisturbed and remoulded Drammen clay consolidated to stresses much higher than the in situ effective overburden stress give almost identical results. Thus the effects of sample disturbance and in situ structure in the clay were eradicated

Topics: Soft clays, Laboratory tests, Direct shear test, Direct simple shear test, Sample disturbance, Shear strength of soils--Testing--Evaluation, Soils--Sampling, Clay--Testing
Publisher: Japanese Geotechnical Society
Year: 2007
DOI identifier: 10.3208/sandf.47.47
OAI identifier: oai:researchrepository.ucd.ie:10197/3254
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • http://hdl.handle.net/10197/32... (external link)
  • http://creativecommons.org/lic... (external link)
  • Suggested articles

    Preview

    Citations

    1. (1992). A new approach to determine soil parameters free from regional variations in soil behaviour and technical quality. doi
    2. (1987). An evaluation of direct simple shear tests on clay. doi
    3. (1996). Comparative study on sample quality using several different types of samplers. doi
    4. (1987). Comparison of truly undrained and constant volume direct simple shear tests. doi
    5. (1972). Consolidated undrained direct simple shear tests on saturated clays.
    6. (1976). Correlations between cone resistance and vane shear strength in some Scandinavian soft to medium clays. doi
    7. (1995). Depositional and post-depositional geochemistry, and its correlation with the geotechnical properties of marine clay in Ariake bay, doi
    8. (1994). Direct shear and direct simple shear test results on a Japanese marine clay. IS-Hokkaido'94
    9. (1966). Direct simple shear tests on a Norwegian quick clay. doi
    10. (1992). Disturbance of the Bothkennar clay prior to laboratory testing. doi
    11. (1985). Effect of consolidation time on triaxial and direct simple shear tests.
    12. (1990). Evaluation of engineering properties for an Ariake clay. doi
    13. (1967). Microscopic structures in kaolin subjected to direct shear. doi
    14. (1993). Mikasa's Direct Shear Apparatus, test procedures and results. doi
    15. (1973). Problems of soil mechanics and construction on soft clay.
    16. (1997). Sample disturbance effects in soft low plastic Norwegian clay. doi
    17. (1978). Shear devices for determining dynamic soil properties.
    18. (1973). Shear strength of normally consolidated clays.
    19. (1981). State of the art: laboratory strength testing of soils. doi
    20. (1972). Stress conditions in NGI simple shear test.
    21. (1987). The behaviour of normally consolidated clay as observed in undrained direct shear tests. doi
    22. (1973). The behaviour of saturated kaolin in the simple shear apparatus.
    23. (1984). The interpretation of in situ soil tests. doi
    24. (1979). The NGI 54mm samplers for undisturbed sampling of clays and representative sampling of coarse material.
    25. (1985). Undrained stability of K0 consolidated clays.

    To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.