Determination of Residual Shear Strength from Reversal Direct Shear test: Analysis and Recommendation
Kobid Panthi1, Suttisak Soralump2
1Kobid Panthi, Graduate Student, Department of Civil Engineering, Kasetsart University, Thailand.
2Suttisak Soralump*, PhD. Geotechnical Engineering, Associate Professor, Department of Civil Engineering, Kasetsart University, Thailand.

Manuscript received on January 05, 2020. | Revised Manuscript received on January 25, 2020. | Manuscript published on January 30, 2020. | PP: 5053-5058 | Volume-8 Issue-5, January 2020. | Retrieval Number: E6971018520/2020©BEIESP | DOI: 10.35940/ijrte.E6971.018520

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Abstract: Reversal Direct Shear test is used for the determination of residual strength of soil sample. This test was conducted on the undisturbed and remolded sample of embankment slope of Pa Bon Dam, Thailand that had failed after its operation for 10 years. The undisturbed sample was taken from the downstream slope (non-failure zone) while the remolded sample was taken from the upstream slope (failure zone). The results yielded the identical values of residual strength parameters. On the basis of laboratory test, various recommendations are proposed for the conduction of this test in future.
Keywords: Residual Strength, Reversal Direct Shear Test, Remolded and Undisturbed Soil Sample, Sample Loss, Shearing Rate.
Scope of the Article: Software and System Testing Methods.