The Behavior of Very Soft Ground with Cement -Stabilized Surface Layer (II) -Field Tests-

In recent, there are several attempts to use a lot of dredged and reclaimed soft grounds in both western and southern coasts in Korean Peninsula for various purposes by improving the properties of the soils. The surface layer in dredged and reclaimed soft ground is improved by mixing of the soft soils and hardening agent, which is made of cement with some other special admixtures. A series of model tests in laboratory was performed to investigate the behavior of the soft grounds with cement-stabilized surface layer The load-deformation behavior illustrated the load-carrying capacity of the cement-stabilized layer and the deformation properties of the soft grounds such as settlement. heaving and lateral flow. The test results showed that the load-carrying capacity of the improved grounds was increased with curing time of the cement-stabilized soil layer. Also the soft grounds with the higher water contents produced the more settlement of the stabilized soil layer and the more heaving and lateral flow of the soft grounds.