Research on quality control and correlation of full-thickness road roadbed construction
In order to determine the reliability and correlation of the detection indexes of the full-thickness road cement improved soil roadbed,the on-site detection methods such as FWD,PFWD and DCP are used to detect the on-site construction quality.The results show that the bending settlement value has a good correlation with the paving thickness and soil age.Penetration and dynamic resilience modulus have the best correlation when the thickness is 40 cm,the correlation coefficients are all above 0.7.The dynamic deformation modulus and the degree of penetration can be used as non-conventional indicators to evaluate the compaction quality of full-thickness road subgrade in the subsequent construction quality inspection.