Compaction Process and Quality Control of Hainan Coastal Powdered Sand Roadbeds
The compaction and quality detection of coastal fine sand roadbed in Hainan is a technical difficulty in the construction.Combined with the project of the Round-Island-Touring Highway,the compaction quality inspection method of coastal fine sand roadbed was proposed,and the paving test section and the compaction process and compaction quality of coastal fine sand roadbed were studied.The results show that the compaction of coastal fine sand foundation is suitable to use the combination of stamping and vibration pressure on the gravel soil bedding;the fine sand embankment can be dug and filled with filling,fast filling,the use of double drum roller compaction,the thickness of compaction should not be more than 20 cm,the number of vibration milling should not be less than 4 times;the quality of compaction can be used to pre-buried soil sample box detection method,compaction control standard should not be less than 88％.The engineering effect of the test section is good.
coastal areafine sand roadbedclosed coverrapid fillstamping and vibratory compactioncompaction monitoringquality control
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