Abstract: This study investigated the effects of hybrid steel fiber of different sizes (6 and 13 mm) on the uniaxial compression performance of ultra-high performance concrete (UHPC). The failure pattern, stress–strain relationship, ...

Abstract: In this paper, safety evaluation for tunnels through steeply inclined strata in cold regions is proposed, for evaluating the safety of lining structures with existing or underlying frost heave damage. Laboratory model tests ...