**5. Conclusions**

In this paper, Shen-Jia-Hu Expressway section EK0 + 323 served as the basis for a project to introduce new FCB design principles and calculation methods. From the results obtained through experiments on the test section as well as via subgrade settlement dynamic monitoring data analysis, the following conclusions can be drawn.


**Author Contributions:** The formal analysis, formula reasoning, and the performance of the experiment, as well as the original draft preparation, were completed by H.L.; Review and editing were completed by Y.W. and J.L. All authors have read and agreed to the published version of the manuscript.

**Funding:** The research was funded by supported by the Fundamental Research Funds for the Central Universities, number B200204036.

**Institutional Review Board Statement:** Not applicable.

**Informed Consent Statement:** Not applicable.

**Data Availability Statement:** Data sharing not applicable. No new data were created or analyzed in this study.

**Conflicts of Interest:** The authors declare no conflict of interest.
