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

In urban areas, flooded damage was occured due to overflow due to lack of drainage capacity of drainage pipes and loss of drainage function of rainwater gutters. In order to reduce such flooding damage, it is necessary to research on the improvement of drainage piping facilities. In order to improve the storage capacity of the gutter storage tank installed in the gutter part of the road, the cross section should be enlarged compared to the existing gutter channel and structural stability should be secured. Therefore, in this study, the basic physical properties of the ultra-high performance mortar matrix were evaluated in order to increase the cross section of the gutter storage tank and a two-dimensional structural analysis was performed to examine the structural stability. In addition, a full-size modular gutter storage tank was developed and manufactured to confirm the applicability of the gutter storage tank, and the flood reduction effect of the gutter storage tank was analyzed through runoff analysis using SWMM. The Ultra-High-Performance Concrete (UHPC) was satisfied all the test items presented in the quality standard. When the derived experimental values were applied, the thickness of gutter storage tank was reduced compared to the existing gutter drainage pipe. The storage capacity was improved and the structural stability was secured of that tank.In addition, the fabrication and constructability of the modular gutter storage tank was sufficiently secured, and the inundation area was reduced about 24% when applied to an actual downtown area. Therefore, the UHPC gutter storage tank developed in this study could be applied as a structural countermeasure to reduce inundation in downtown areas.