Abstract: Three model tests of reinforced sand cushion with denti-inclusions on soft ground under embankment were conducted, and the reinforcement effects of denti-inclusion forms compared. The results show that the biaxial grid reinforcement of denti-inclusions can better utilizing tensile strength. Reinforcement can be enhanced with improved integrity of denti-inclusions. The bearing capacity of soft ground is significantly increased, the settlement, differential settlement and the lateral displacement of embankment slope reduced.

Key words: biaxial grid reinforcement of denti-inclusion, comparative test, denti-inclusions form, reinforced sand cushion