Application of Foamed Light Soil in Deep Soft Foundation Embankment
In this paper,based on the filled embankment on a soft substratum,the principle of stress compensation was stated.The finite element software was used to simulate the change laws of settlement and stress of the road filled with foamed light soil.The analysis showed that both the settlement and differential settlement of the subgrade were large when using the conventional subgrade filling materials to repair the embankment,which would cause additional stress to the soft substratum,resulting in cracks on the road.While using the foamed light soil to treat the soft substratum,the subgrade settlement and the vertical additional stress at the top of the soft substratum gradually decreased with the filling depth.Comprehensively considering the treatment effect,durability,and other factors,the treatment scheme of filling within 4 m was recommended.
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