(1) It has a strong ability to adapt to the deformation of the foundation, and has low requirements for the bearing capacity and flatness of the foundation, and the actual cost of the project is lower than that of bridges and culverts with similar spans.  

(2) The construction period is short, mainly for assembly construction. Standardized design and production are adopted, with simple design and short production cycle. The production is not affected by the environment, and centralized factory production can be carried out, which is conducive to reducing costs and controlling quality.

(3) On-site installation does not require the use of large-scale equipment, and the installation is convenient. It is more suitable for projects such as lack of human resources or high risk, plateau and hypoxic areas.

(4) It reduces the amount of water condensation, block stone or gravel, sand, etc., and is more suitable for areas with lack of sand and gravel resources or remote areas with long transportation distances such as cement and steel; The environmental implications are far-reaching.