Research on Optimization of Subgrade and Pavement Design for Reconstruction and Expansion
This paper further summarizes the design optimization technologies and strategies by analyzing the application of measures such as material selection,pavement structure design optimization and reasonable construction in engineering examples,and puts forward specific optimization design and construction methods of subgrade and pavement.The results show that in the design process of subgrade and pavement reconstruction and expansion,it is necessary to focus on the design and control of compaction degree.When the number of impact rolling is 20-30 times,the pavement compaction rate is only increased by 1%,and the effect of blindly increasing the number of impact rolling on the improvement of subgrade compaction quality is limited.Through the optimization of subgrade and pavement design,the performance of key parts can be improved,which lays a foundation for improving transportation efficiency and safety.
highway engineeringsubgrade and pavementreconstruction and expansion engineering
NETL
NSTL
万方数据
维普
