Review of shearing strength of rockfill

摘要: The steady development of large scale triaxial shear testing equipment in the United States and Mexico past 20 yr has permitted laboratory rockfill specimens having up to 8-in. sized particles. Specimens smaller particles can be tested under confining pressures 2,000 psi. A review consolidation published test data reports shows that competent authorities have found friction angles varying widely with various parameters such as pressure, relative density, gradation, particle strength, degree saturation, shape, so on. most basic parameter appears consistent indication being for average dumped rockfill, angle varies from about 55° at very low normal pressure 35° high pressure.