Application of High Liquid Limit Soil to Expressway Subgrade Filling to Reduce Compaction Degree
In this paper,combined with the application practice of highway,the practical effect of cladding method,interlayer method,core-cladding method and geosynthetic material method for direct subgrade filling with high liquid limit soil was studied.The CBR value,compression coefficient,shear strength and rebound deflection value of high liquid limit soil under different compaction degree were compared by laboratory test and field test.The results show that the high liquid limit soil can fill the embankment directly without affecting the strength of the subgrade when the compaction degree standard is reduced appropriately(3%～5%),which has significant economic benefits.
High liquid limit soilHighwayCompaction degreeSubgrade fill
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