大激振力振动压路机压实高液限粘土研究

Research on Big Vibration Force Vibratory Rollers Compaction Effect on High Liquid Limit Clay

为了研究大激振力振动压路机YZ32对高液限粘土的压实效果,采用压路机YZ32对不同填筑厚度的高液限粘土试验段进行强振碾压;同时利用积分方法对压路机YZ32与普通振动压路机压实后的路堤沉降量进行了比较。研究表明:压路机YZ32强振碾压后的路基土干密度、有效压实深度更显著,路堤稳定性更好。

In order to study the compaction effect of vibratory roller YZ32 with big vibration force on high liquid limit clay, it was used to compact test sections with different filling thickness on high liquid limit clay in severe vibration, and simultaneously making a contrast with the compaction effect of SR20M, which is an ordinary roller. The embankment settlement amounts of two different vibratory rollers were calculated through integration method. The research results indicate that the dry density and the effective compaction depth of subgrade soil which are compacted in severe vibration by YZ32 are bigger than SR20M＇s, and the former makes a better embankment stability.