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Stress history effect on mining sand with fines contents

This paper presents the results of an experimental investigation of stress history on undrained shear characteristics of reconstituted mining sand with fines contents. The stress history and present state of stress which influence shear strength and deformation of soils are reflected by the overconsolidation ratio (OCR). A series of undrained triaxial tests were conducted on the reconstituted mining sand with clay fines specimens which were overconsolidated, in order to investigate the effects of stress history and clay fines on the stressstrainpore pressure response, peak strength and soil stiffness.