LI Ming-dong, ZHU Wei, TANG Jun, et al. A method to calculate cohesion of EPS beads mixed lightweight
soil made of dredged sediment[J]. 2006, 27(S2).DOI:
Mixing dredged sediment with EPS beads and cement can not only reutilize of dredged sediment
but also produce a geotechnical material with low density and high strength. Strength is one of the most important properties ofEPS beads mixed lightweight soil. For engineering design
it is necessary to build the relationship between the shear strength and the properties and ratio of the materials. The strength is controlled by solidifying effect of solidifying material and replacing effect of EPS beads. The solidifying effect has been researched a lot
so the replacing effect is studied in this paper. The relationship between cohesion of EPS beads mixed lightweight soil and the density and content of EPS beads was built based on equivalence of force
coordination of strain and physical properties of EPS beads. The cohesion of EPS beads mixed light weight soil was obtained by direct shear test to verify this relationship.