Application Analysis of Recycled Small Size Gravel Filler in Collapsible Loess Subgrade
The application of small-size gravel in loess subgrade has great economic and environmental significance.In order to study the long-term deformation characteristics of recycled small-size gravel filler in loess subgrade,a series of indoor tests and field tests were carried out,and long-term measurement deformation tests,including indoor creep test and field settlement measurement.The long-term creep test was conducted with self-made consolidation creep instrument.The results showed that the creep type of regener-ated small-size gravel filler under the test load was stable creep.With the increase of load,not only the creep deformation increased,but also for a long time.The crushing and compaction are the main reasons for the long-term deformation.Through measurement and analysis,it is found that the settlement stability of small particle size gravel loess subgrade takes a long time,and the settlement of loess subgrade increases rapidly after the road operation.
loess subgraderecycled small size gravelfillerdeformation analysis
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