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Rockfall protection facilities are necessary to reduce damages from rockfall or debris flow on roads near steep cut slopes. In Korea, rockfall protection fences and rock sheds are widely utilized for rockfall protection facilities. The rock shed is made of reinforced concrete or steel in the shape of a tunnel, and it is used for protecting the road from massive rockfall (up to 3,000 kJ of rockfall energy). In this study, a new type of rock shed comprising a Concrete-Filled-Tube (CFT) was designed. First, the proposed CFT rock shed could resist up to 3,000 kJ rockfall energy. Next, the performance of the CFT was verified through static analysis in which the 3,000 kJ rockfall energy was considered as the equivalent static load.

Design and Static-Performance Evaluation of Concrete-Filled-Tube Rock Shed Structure