Author(s)

Zhanglei Wei

Corresponding Author

Zhanglei Wei

Abstract

Municipal road and bridge projects constitute the core components of urban infrastructure, with their construction quality directly influencing the safety of urban transportation and the service life of facilities. During the construction of municipal roads and bridges, the settlement section of the subgrade emerges as a critical area prone to issues. Affected by factors such as geological conditions, construction techniques, and seasonal climate, the settlement section of the subgrade often experiences problems such as excessive settlement, cracks at joints, and insufficient bearing capacity. These issues not only lead to a decline in pavement smoothness and increased vehicle bumpiness but, in severe cases, can also result in structural deformation of bridges and roads, heightening safety risks. Based on this, the article systematically summarizes applicable technical methods from aspects including pre-construction preparation, core technical points, technology selection and adaptation strategies, as well as dynamic monitoring and parameter adjustments during the construction process. Its objective is to provide guidance for engineering practice and assist in resolving issues related to the settlement section of subgrade construction, ensuring the long-term stable operation of municipal road and bridge projects.

Keywords

Municipal road and bridge engineering, subgrade surface in settlement section, key construction technical points, technology selection and adaptation