도수로 집수정의 배수능력 증대를 위한 실험 연구

Abstract

Recently, inundation damage of road was seriously occurred without drainage well or overflow due to lack of drainage capacity atdrainage well installed on the slopes. The drainage well has a very important role in the rainfall drainage from the slopes. However,drainage well of waterway was installed in accordance with the site conditions during construction because the design and installationcriteria of drainage well were unclear. Therefore, it is necessary to analyze flow characteristics and drainage capacity at drainage wellof waterway for improvement of the design criteria. In this study, hydraulic experiment was conducted to analyze the flow char-acteristics and enact standard design criteria of drainage well. Hydraulic experimental apparatus(1/4 reduction model) which canchange the slope of waterway and the joining heights of waterway and drain pipe were installed to analyze of flow characteristics atthe drainage well. The drainage efficiency of the drainage well was increased when the waterway was connected at the 1/3h of thedrainage well and the drain pipe was joined at the 0.3D of the drainage well.Key words : Drainage well, Waterway, Drain pipe, Drainage capacity