6 conclusions and discuss the uneven roadbed fill Settlement is the embankment cracking,pavement damage one of the main diseases.Application of centrifugal model test for a different degree of compaction.different moisture content and different filler particles deformation of the rock foundation of the physical simulation of the settlement,depicts the rock foundation of the settlement deformation characteristics,test results showed that :(1) Generally speaking,With the final settlement of the subgrade filling height increases,decreases linearly with the degree of compaction to improve.Although water rates increase linearly.(2) from the cross section of the settlement and deformation,subgrade settlement midline deformation occurred.in the position to achieve the maximum amount of the final settlement.Roadbed shoulder from the middle to both sides,settlement deformation decreased,but the horizontal deformation increases.(3) From the subgrade settlement slope deformation,roadbed slope surface of the horizontal displacement of people living in 80mg/kg slope height,also increased with the degree of compaction and moisture content decreases with the decrease.In this study,an initial analysis of centrifugal model test of the rock foundation of settlement laws Due to the scaled model experiments also found larger,resulting in reduced scale model material back into the same proportion of fine-grained soil.lost some of the engineering properties of coarse-grained soil,the results might be in error.In addition,due to a limited number of test models,plus fill in the nature of settlement of the reclaimed section of the form,The research results of this test still needs further verification.
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