A simplified in-situ direct shear test suggested to determine the shear strength of roller compacted rockfill material, was conducted on a concrete-face rock-fill dam (CFRD) under construction. The strength of the roller compacted rockfill sandstone, was determined by a simplified in-situ direct shear test. The vertical load applied on the upper surface of the specimen before shearing, was supplied by stacking many soil pockets with equal weight. The horizontal shear load, which was applied on the steel shear box, was provided by exerting a horizontal drawing force on the shear box step by step. The real normal stress and shear stress acting on the shear plane were precisely measured, and the shear strength of the tested material was obtained.
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Translated from Osnovaniya, Fundamenty i Mekhanika Gruntov, No. 1, p. 20 January-February, 2016.
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Wang, JJ., Yang, Y. & Chai, HJ. Strength of a Roller Compacted Rockfill Sandstone from In-Situ Direct Shear Test. Soil Mech Found Eng 53, 30–34 (2016). https://doi.org/10.1007/s11204-016-9360-1
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DOI: https://doi.org/10.1007/s11204-016-9360-1