Common Testing and Detection Methods in Highway Subgrade Engineering
The test and detection methods in highway subgrade engineering are studied.Taking the subgrade engineering of second-class highway from Liupo Town to Wufeng Township,Yunyang District,Shiyan City,Hubei Province as an example,the sand filling method and rebound deflection detection method are respectively used to detect the compactness of highway subgrade and subgrade de-flection test detection.The test results show that by using the sand filling method to test the road subgrade,the compaction degree test results of the road subgrade were obtained,that is,the measured compaction degree of the 6 test pile numbers of the road subgrade was all greater than 95%,which meets the quality inspection standards for road subgrade compaction degree in highway engineering.The representative value of roadbed deflection obtained through rebound deflection detection is23.7(0.01 mm),and the qualified rate of roadbed deflection is as high as 98.41%.By selecting and applying appropriate testing methods,the detection efficiency of roadbed en-gineering can be effectively improved.
NETL
NSTL
万方数据
维普
