Study on Dynamic Consolidation Construction and Field Test of High Fill Subgrade of Expressway
Based on the example of an expressway expansion project,this paper analyzes the construction technology and construction effect of dynamic compaction reinforcement for high fill subgrade of expressway.The results show that the dynamic compaction of the subgrade can re-duce the settlement amount by 38.5%and increase the soil compaction degree by 9%～23%.The calculated results of finite element method and Rayleigh wave detection method are very close to the measured results,which shows the reliability of the two test methods.
High fill subgradeRayleigh wave velocityCompaction degreeBooster reinforcement dynamic compaction
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