The Society of Convergence Knowledge Transactions ISSN:2287-8920(Print) 융복합지식학회논문지

Bridge stormwater runoff is drained by a bridge drainage (bridge inlet, linear drainage)facility installed at the side of the bridge. Poor drainage in the drainage facility on the bridge has various problems such as peeling of concrete, deterioration of the bridge, and damage to the aesthetics of the bridge. Therefore, a bridge linear drainage facility with improved drainage efficiency of the catchment drainage facility is needed. In addition, for the proper installation of the bridge linear drainage facility, it is necessary to present the installation standard through the analysis of the drainage capacity of the linear drainage system. In this study, a model was made by improving the shortcomings of the linear drainage facility of the bridge barrier, and a hydraulic experiment was performed to analyze the drainage capacity required for the design. As a result of the experiment, the total flow width was in the range of 52~90cm, and as the longitudinal slope of the road for each drainage interval increased, the flow width decreased. The overall vehicle picking efficiency was in the range of 1.5 to 21%, and the longitudinal slope of the road increased or the same species for each drainage interval. When inclined, it decreased as the inflow flow increased. In addition, the maximum installation length of the bridge protection wall linear drainage facility according to the road conditions for each drainage interval was suggested based on the rainfall intensity and the amount of vehicle collection. It is believed that this can be used as basic data for presenting the design criteria for the linear drainage facility of the bridge barrier.