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A series of triaxial tests were conducted to investigate the characteristics of the critical state loci (CSLs) of original and pre-crushed sands. The results of the original sand showed that the CSL was divided into two segments by a particle breakage reference stress (0·7 MPa) not only in the e –log p ′ plane but also in the q – p ′ plane. The results from the pre-crushed sands revealed that particle breakage resulted in a downward translation and an anticlockwise rotation of the CSL in the e –log p ′ plane. However, in the q – p ′ plane, all the critical state points were on the initial CSL, but with different evolutions against particle breakage for drained and undrained tests.
A series of triaxial tests were conducted to investigate the characteristics of the critical state loci (CSLs) of original and pre-crushed sands. The results of the original sand showed that the CSL was divided into two segments by a particle breakage reference stress (0·7 MPa) not only in the e –log p ′ plane but also in the q – p ′ plane. The results from the pre-crushed sands revealed that particle breakage resulted in a downward translation and an anticlockwise rotation of the CSL in the e –log p ′ plane. However, in the q – p ′ plane, all the critical state points were on the initial CSL, but with different evolutions against particle breakage for drained and undrained tests.
Particle breakage and the critical state of sands
F W Yu (author)
Géotechnique ; 67
2017
Article (Journal)
French
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