Abstract
This paper presents the results of an experimental investigation on volcanic coarse-grained soils with fines, which are produced by particle crushing. A series of cyclic undrained triaxial tests and one-dimensional consolidation tests were carried out on reconstituted specimens, varying Fc, OCR and Ip of fines. The test results showed that liquefaction strength of specimens with OCR=1.0 decreases with the increase in Fc. On the other hand, liquefaction strength and consolidation yielding stress of overconsolidated specimen increase with the increase in OCR and Fc. Moreover, the amount of particle crushing is decreased with the increase in Fc. Therefore, it was considered that the strength increase due to fines induced by particle crushing depends mainly on the increment of particle to particle contacts.
