Development of interception capacity equations according to grate inlet types

Sung Yeul Choi; Kwangho Eom; Seungyong Choi; Jaewoong Cho

doi:10.3741/JKWRA.2016.49.10.851

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2016 Vol.49, Issue 10 Preview Page Next Page

Development of interception capacity equations according to grate inlet types 빗물받이 형상에 따른 차집량 산정식 개발

31 October 2016. pp. 851-861

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Abstract

Recently, natural disasters, which are hard to predict and prevent, are rapidly increasing due to climate change worldwide. Particularly the damage scale of urban areas is increasing because of local torrential rainfall. In urban areas, the rain water cannot flow to pipes well due to the high percentage of impervious areas by the indiscriminate development. As a result, the inundation damage is getting higher in urban areas. So we need to characterize the interception of the grate inlets to ensure good drainage in impervious areas. But Korean installation criteria of grate inlets does not reflect road and drainage sector characteristics so the grate inlets do not function properly in many areas. In this study, we suggest the interception capacity equations about grate inlets through hydraulic experiments in various conditions. Therefore, the interception capacity changes are analyzed according to bearing bar slopes of grate inlets, grate inlet sizes and shapes and connecting pipe numbers. Though this, we developed the interception capacity equations about domestic grate inlets

Keywords

Grate Inlet

Special Grate Inlet

Grate Inlet Interception Capacity Equation

전세계적인 기후변화로 인하여 예측 및 대응이 어려운 자연재해가 격증하고 있으며, 특히 국지성 집중호우로 인해 도시지역의 피해가 집중되고 있는 추세이다. 도시지역에서의 침수피해는 무분별한 난개발로 인한 불투수면의 증가로 인한 지표 우수가 관로로 원활히 집수되지 못하여 침수피해가 가중되고 있는 실정이다. 이러한 불투수면 증가에 동반된 우수배수 문제를 해결하기 위해서는 빗물받이 차집특성의 규명이 무엇보다 시급하다. 그러나 우리나리의 경우 빗물받이 형상, 규격, 설치간격 등과 같은 기술기준이 도로 및 배수분구의 특성을 반영하고 있지 않아 빗물받이가 제 기능을 하지 못하는 곳이 산재하는 실정이다. 이에 따라 본 연구에서는 빗물받이의 규격·형태, 종경사, 횡경사, 유입수심, 연결관의 수의 조건의 따른 실험을 통해 빗물받이 차집량 산정식을 조건별로 제시하고자 한다. 특히, 기존의 빗물받이 수리실험에서 다루지 않았던 빗물받이 베아링바의 경사별 조건, 빗물받이 형태별 조건 및 연결관 개수에 따른 차집량 변화를 분석하고 국내에 적용 가능한 빗물받이 차집량 산정식을 개발하였다.

키워드

빗물받이

특수 빗물받이

빗물받이 차집량 산정식

References

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Yoon, S. E., Lee, J. T., Jung, J. W., Shin, S. Y., and Im, D. H. (2003). “Analysis of interception efficiency as variation with storm water inlet structure.” Korean Society of Civil Engineers Conference, pp. 2784-2789.

Information

Publisher :KOREA WATER RESOURECES ASSOCIATION
Publisher(Ko) :한국수자원학회
Journal Title :Journal of Korea Water Resources Association
Journal Title(Ko) :한국수자원학회 논문집
Volume : 49
No :10
Pages :851-861
Received Date : 2016-06-21
Revised Date : 2016-08-31
Accepted Date : 2016-08-31
DOI :https://doi.org/10.3741/JKWRA.2016.49.10.851

Journal of Korea Water Resources Association ISSN:2799-8746(Print) 2799-8754(Online) 한국수자원학회 논문집

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