KIEAE Journal

Korea Institute of Ecological Architecture and Environment (한국생태환경건축학회)
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Application of Percentile Rainfall Event for Analysis of Infiltration Facilities used by Prior Consultation for LID (Low Impact Development)

  • Kwon, Kyung-Ho (Urban Water Cycle Research Center, Korea Institute of Safe Drinking Water Research) ;
  • Song, Hye-Jin (Urban Water Cycle Research Center, Korea Institute of Safe Drinking Water Research)
  • Received : 2015.05.26
  • Accepted : 2015.10.13
  • Published : 2015.10.31
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Abstract

Purpose: Retention and infiltration of small and frequently-occurring rainfall by LID facilities account for a large proportion of the annual precipitation volume. Based on 4 standard facilities such as Porous Pavement, Infiltration Trench, Cylindrical Infiltration Well, Rectangular Infiltration Well by Seoul Metropolitan Handbook of the Prior Consultation for LID. The total retention volume of each facility was calculated according to the type and size. The Purpose of this study is to find out the quantitative relationship between Percentile Rainfall Event and Design Volume of Infiltration Facilities. Methode: For the estimation of Percentile Rainfall Event, Daily Precipitation of Seoul from 2005 to 2014 was sorted ascending and the distribution of percentile was estimated by PERCENTILE spreadsheet function. The managed Rainfall Depth and Percentile of each facility was calculated at the several sizes. In response to the rainwater charge volume of 5.5mm/hr by the Category "Private large site", the 3 types of facilities were planned for example. The calculated Rainfall Depth and Percentile were 54.4mm and 90% by the use of developed Calculation-Module based on the Spreadsheet program. Result: With this Module the existing Designed Infiltration volume which was introduced from Japan was simply converted to the Percentile-Rainfall-Event used in USA.

Keywords

References

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Cited by

  1. 식생형 LID 시설에서 면적 기반의 적정 용량 설계 방법 연구 vol.20, pp.4, 2015, https://doi.org/10.17663/jwr.2018.20.4.383