Based on the related rockfill material tests

the particle flow code computer simulation technology was used to simulate the particle breakage characteristics of rockfill. 2 574 particle clusters were used in the simulation. The result of numerical simulation with the selected micro parameters was in agreement well with the result of plane strain laboratory test. So the numerical test can capture the micro phenomenon of particle breakage properly. Compared with the laboratory tests

the numerical simulation can also expose the regularity of evolution of particle breakage microscopically; and the location of the breakage zone. It can be used as the parameters and theoretical basis for the further study of building a rockfill dam model; and then observing the process of particle breakage during the expounding of the reservoir and during earthquakes. And also the displacements of the dam due to the particle breakage and the location of the breakage zone; and the influence on the strength of the rockfill can be researched furthermore.