A Study on the Law of Ring-Shear Band Evolution

A separate-bottom Couette cell is used to carry out ring-shear tests on sand and hydrate, the evolution of shear bands recognized using tracer method. Based experimental verification, a numerical simulation method applied study band variation law with height strength sample. Analyzing distribution stress strain gives dimensionless number (c+ρgH·tgφ)H/αGL that affects characteristics band, which indicates direction form are controlled by stiffness ratio load. Furthermore, width given quantitatively.