RHEOLOGICAL PROPERTY OF SOFT ROCK UNDER MULTIAXIAL COMPRESSION AND ITS EFFECT ON DESIGN OF ARCH DAM
软岩多轴流变特性及其对拱坝的影响

A nonlinear model and multiaxial rheological experiment results of soft rock are applied to practice,and the simulation agrees well with the reality. The deformation modulus decreases evidently and the nonlinear rheological property is more significant when the rock is immersed,which will affect the stress distribution of arch dams. In addition,it is found that the rheology of soft rock decreases with lateral pressure,so that the stress state of arch dam is improved.