2026 Volume 5 Issue 1 Pages 111-120
This paper analyzes the evolution of design methods for railway cut tunnels in operation that have not been documented or explained in detail, and clarifies the consistency between laws and ministerial ordinances governing railway operations and current performance evaluation methods. It also clarifies how rationalization of the design methods applied to the structure was achieved due to advances in the construction technology of the adopted retaining wall methods and changes in the surrounding ground conditions, such as the deepening of station areas and the rise in the groundwater level. Using existing railway structure design cases, it analyzes the impact on member section force calculations when different performance evaluation methods are applied.
