ANALYSIS OF THE SETTLEMENT OF SOFT SOIL SUBGRADE

Soft soil has many special properties which are different from other kinds of soil, such as: high natural moisture content, great void ratio, large compressibility, low shear strength and bearing capacity. Accordingly, the settlement of highway soft soil subgrade has special laws. This paper analysed the settlement laws of soft soil subgrade using FEM software ABAQUS, and made some relative calculation combined project examples, simulated the settlement of soft soil subgrade with different velocity of load embankment, different width of embankment, and different Young's modulus of fill soil to confirm settlement laws of soft soil subgrade. At last this paper makd some conclusions and gave some advices to soft soil subgrade reinforce, construction and detection.