Failure mechanism and effective reinforcement of granular soil slope

The model tests of the slope called “tilting box test” are carried out on aluminium rod mass, which is used as a two-dimensional model of granular materials, and sand in dry and wet states. Based on the test results, the failure mechanism and the effective reinforcement of the granular soil slope are considered. It becomes clear from the test results that the rolling of soil particles on the surface of the slope is a “trigger” of the whole failure of the granular soil slope, the sliding like a rigid body along a slip line is not observed, and therefore the method of reinforcement to stop the motion of particles on the surface of the slope is unexpectedly effective.