Construction Technology of the First Piece of Mixing Pile for Connecting Rod in Changchun-Shenzhen Expressway Extension Project
Connecting rod mixing pile technology is a common technology in highway subgrade treatment,which is a simple process and fast construction speed.In order to improve the overall construction quality of the expressway expansion project,based on the Chang-chun-Shenzhen Expressway as the background,the local geological and hydrological conditions were analyzed,the construction prepa-ration work,operation practice and quality control links were discussed,and the construction technology of the first piece of the express-way expansion project was comprehensively discussed.The construction of the first piece is the key to establish a"model project",which can provide sufficient reference and experience summary for subsequent operations,and has the function of testing and adjust-ment.Through this construction,the demonstration role of the first project has been realized,and the common quality problems that may occur in subsequent construction have been prevented and eliminated.
expresswayexpansion projectmixing pile for connecting rod