Model Testing Study on Dynamic Drainage Consolidation Method for Soft Soil Foundation Treatment

A model test of the dynamic drainage consolidation method is described and the dynamic drainage consolidation effects are studied,then a silty soft soil dynamic drainage consolidation model with 1:2 resembling ratio was built up in this test.In the model testing,with the strictly controlled drainage and dynamic loading conditions,the effects of silty soft soil foundation consolidation and its changing proceeding are analyzed.During the silty soft soil foundation dynamic drainage consolidation,the main factors which affect the consolidation effects aresummaried up.At the same time,the silty soft soil's deformation proceeding,the excess pore water pressure's dissipation law,and the foundation liquefaction safety coefficient's changing law are concluded in this paper.At last,a coefficient for the Menard formulation to calculate dynamic drainage consolidation depth is ascertained in this kind of soft soil foundation treatment method.Some normal soil engineering testing methods are used to estimate the silty soft soil dynamic drainage consolidation effects.The consolidation effect shows that the dynamic drainage consolidation method is suitable to consolidate the soft soil foundation.