Journal of Korean Society of Water and Wastewater (상하수도학회지)

The Korean Society of Water and Wastewater (대한상하수도학회)
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Application of Stormwater Detention Facilities for Lacking Capacity of Sewers

강우시 도시 하수관거통수능부족 해소를 위한 우수저류시설의 적용

  • 김영란 (서울시정개발연구원 도시환경연구부) ;
  • 김진영 (서울시정개발연구원 도시환경연구부) ;
  • 황성환 (서울시정개발연구원 도시환경연구부)
  • Received : 2004.02.13
  • Accepted : 2004.05.14
  • Published : 2004.06.15
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Abstract

For the last two decades, Seoul has always been affected by large floods. As climate change causes more frequent localized heavy rains exceeding the capacity of sewer or river to discharge water, flood damage is expected to increase. Under the situation, detention facilities for lacking capacity of sewers can control stormwater runoff to reduce flood damage in urbanized areas. In this study, in order to reduce flood damage in Cheonggyecheon areas, the capacity of detention facilities was decided to make up for the lacking capacity of main sewers in case of the rainfall in July, 2001 as large flood. The average amount of stormwater detained in eight Cheonggyecheon drainage areas is $235.09m^3/ha$. Location and size of stormwater detention facilities is designed to have effects in short term by targeting the reduction of flood damage. Schools and parks are suggested as optimal locations where detention facilities are constructed in drainage areas.

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References

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