Control of Subgrade Compaction Based on Void Ratio Method

Silt and clay are main fillings of subgrade of high-grade highway,and the compaction control is based on dry density,which can not assure the intensity and stability of subgrade absolutely.So the void ratio control method is put forward,and has been compared with the actual compaction method;reasonable compaction standard is also established.Research shows that void ratio control method is feasible in compaction control of subgrade.