Constant water content direct shear testing of compacted residual soils

Date

2020-08-01

Author

ÜYETÜRK, CELAL EMRE
Huvaj Sarıhan, Nejan

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Mechanical behavior of residual soils are studied by performing constant water content direct shear tests on reconstituted specimens using total stress analysis. The testing program involves initial degree of saturation (Sr) and applied normal stress as the control parameters. For three different soil samples, a total of 55 direct shear tests are conducted at Sr = 60%, 80%, and saturated conditions, in the normal stress range of 15-60 kPa. The results showed that shear strength increases with decreasing Sr and the relationship between shear strength and Sr is nonlinear. More dilative response is observed with decreasing Sr and decreasing applied normal stress. Maximum dilatancy and Sr relationship is nonlinear. At large displacements, samples prepared at different Sr levels showed similar ultimate shear resistances under similar applied normal stresses. It is concluded that Sr and applied normal stress dramatically influence the mechanical behavior of compacted residual soils studied.

Subject Keywords

Geotechnical Engineering and Engineering Geology, General Engineering, General Earth and Planetary Sciences, Ocean Engineering, General Environmental Science

URI

https://hdl.handle.net/11511/46975

Journal

BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT

DOI

https://doi.org/10.1007/s10064-020-01893-w

Collections

Department of Civil Engineering, Article

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Citation Formats

C. E. ÜYETÜRK and N. Huvaj Sarıhan, “Constant water content direct shear testing of compacted residual soils,” BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT, pp. 0–0, 2020, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/46975.