Construction Technology for the Joint of New and Old Roadbeds and Pavements in the Reconstruction and Expansion of Highways
With the continuous increase in traffic volume,the existing highways in China have reached saturation.With the continuous development of local economy and the increase in traffic volume,local nation-al and provincial trunk roads seriously affect the sustainable and efficient development of local economy.It is urgent to carry out necessary renovation and expansion to meet current and future needs.But if the joint ef-fect of the renovated and expanded roadbed is not good,it will lead to settlement differences,and in severe cases,road cracking may occur,posing a risk to driving safety.This article takes the example of the G211 highway renovation and expansion project along the Heihe River in Tongren City,Guizhou Province,which in-tegrates the construction and maintenance of ordinary national and provincial trunk lines.A new and old roadbed splicing scheme is proposed,and the measures for boosting and strengthening the new and old roadbeds are studied.Through real-time monitoring data of new and old roadbed settlement,it is reflected that the construction performance of the new and old roadbed splicing is excellent,and the connection effect is ideal.
renovation and expansionnew and old roadbed and pavementconstruction technique
万方数据
维普
