Abstract
The divided box bag method(D·BOX Method) has been developed as a modern earth reinforcement method using "soilbags". Based on the results of 3D elastic consolidation analysis by FEM and the loading test on the D·BOX bags set at a very soft clay ground, it is reported that the D·BOX bags with crushed stones inside act as a permeable layer and develop the local consolidation and strengthening of the very soft clay soil just under the D·BOX bags in a few weeks. In addition, the D·BOX bags also act as an apparatus damping the traffic vibration, because the vibration energy is dissipated as the frictional heat energy between soil particles in the D·BOX bags. The case study of the in-situ vibration test on a road constructed by the D·BOX method is also reported.
