Shear banding characteristics of granular materials and particle size effects on the seismic stability of earth structures

摘要

To account for both peak and residual shear strengths of backfill and particle size effects on the strain-softening characteristics in the aseismic design of soil structure, the stress-strain behaviour of shear band was evaluated by performing a series of plane strain compression tests. Based on the test results of sands and gravels having wide ranges of mean diameter (D_(50)) and uniformity coefficient (U_c), it is shown that the normalised post-peak relationship between the shear stress level, R_n = (R -