Excavation Technology for Roadbed Earthwork in Fenshi Expressway Construction
In order to improve the construction efficiency and quality of roadbed earthwork excavation on highways,longitudinal and transverse mixed earthwork excavation techniques were applied to study the roadbed earthwork excavation construction of Fenshi Expre-ssway.Design vertical and horizontal mixed soil excavation techniques based on the project overview.Apply the average cross-section method to calculate the amount of earthwork excavation work,providing data reference for subsequent construction.According to the de-sign drawings,carry out measurement and layout work on the cross-section,centerline,and elevation of the construction roadbed to provide benchmark targets for subsequent construction.During the process of earthwork excavation,the roadbed is replaced and com-pacted to ensure the stability of the soil slope.Inspect and analyze the construction quality.For 10 random measurement points,the minimum compaction degree of the roadbed base after earthwork excavation is98.32%,the maximum porosity is28.5%,the minimum foundation coefficient is 190 MPa/m,and the minimum deformation modulus is 165.31 MPa,all of which are within the actual engi-neering standard range.
NETL
NSTL
万方数据
