Deformation analysis and control technique of the roadbed reconstruction and extension for soft soil

For a typical project of roadbed reconstruction and extension,performances of the soil in widening and existing road foundation were compared by some in-situ tests.It is found that mechanical properties of the soil in original road foundation as a whole are better than those in the widening road foundation.However,the differences are mainly at a certain depth,and enlarge with increase in the existing roadbed height.Beyond the range of the depth,the feature disappears.Analysis of widening roadbed