Capacity of Steel Fiber Reinforced Concrete for Extruded Concrete Lining Method

摘要

This paper describes the results of bending experiments on specimens having full-scale thickness under axial loads, to confirm the strength of SFRC lining of an extra-large tunnel built by the ECL method. Results confirmed that SFRC lining had tough ductility and dispersion of cracks like reinforced concrete. Moreover, the capacity of all the SFRC lining exceeded the design strength. It was clarified that the design by the proposed design and construction manual was safe enough.