Mechanical characteristics and particle breakage of coral sand under one-dimensional repeated loading

Coral sand, which is an important filler resource in coastal areas, continuously subjected to repeated waves or traffic loading. In this study, a series of oedometer tests are conducted on coral sand and silica under loading, the results compared. The influence initial density number amplitude loading volumetric deformation, soil stiffness, particle breakage investigated. reveal that deformation mainly occur first stage increase by increasing reducing density. Compared stiffness lower greater during stage. However, opposite trend observed for subsequent Finally, three power functions proposed predict