Effect of particle fabric on the one-dimensional compression response of Fraser River sand

One-dimensional compression of sand with lateral stress measurement allows for laboratory determination of the coefficient of lateral pressure at rest, K-o. The present study aims to investigate the role of initial particle fabric in one-dimensional compression and to determine the effect of fabric on the coefficient of lateral pressure at rest in Fraser River sand. One-dimensional compression with lateral stress measurement was carried out on reconstituted Fraser River sand specimens using an instrumented oedometer. In order to construct different particle fabrics, three different laboratory specimen reconstitution techniques were utilized: air pluviation, tamping and vibration. Each one-dimensional compression test was executed in three distinct phases: virgin loading, unloading and reloading. The results from the present study show that specimens resulting from different laboratory reconstitution methods (i.e., different initial particle fabrics) exhibit different one-dimensional compression responses.