저영향개발기법이 도시 유출에 미치는 영향 = The Effect of Low Impact Development Techniques on Urban Runoff

국문 초록 (Abstract)

도시개발의 지나친 진행에 따라 불투수면의 증가로 인해 유출이 증가되어 도시 홍수에 대한 우려가 증가되고 있으며, 도시 유역의 물순환을 개발 이전과 같은 상태로 되돌리고자 하는 노력이 지속되고 있다. 이를 위한 노력으로 저영향개발(Low Impact Development, LID) 기술이 저류, 침투, 증발산과 같은 기작을 통해 도시개발 전후의 수문 현상을모사하기 위해 주목받기 시작했으며, LID를 실제 유역에 도입할 수 있는 기법에 대한 연구가 국·내외에서 활발하게이루어지고 있다. 본 연구에서는 도시 소유역에 강우-유출 수문모형인 SWMM의 모의를 통해 LID를 적용하여 목표로 유출량 저감 효과를 시나리오 별로 분석 및 평가하였다. SWMM-LID 모형을 가산1빗물펌프장 유역을 대상으로구축하였으며 옥상녹화와 투수성 블록 포장 기법을 기법별 정성평가를 통해 유역에 적용할 LID 기법으로 선정하였다. SWMM내에서 저류 및 침투를 통한 총 유출량 감소 효과를 위해 설정되어야 하는 각 인자들을 설계 하였으며, 6가지 시나리오를 선정하여 모의한 결과, 투수성 포장에 의한 저감 효과가 옥상녹화에 의한 저감 효과보다 더 크게나타났다. 향후 유역의 특성에 맞는 LID 시설의 설계가 필요하며, 특히 서로 영향을 미치는 하천이나 지하수위 등 도시 수자원 요소들은 전체 시스템에서 고려할 수 있도록 고려되어야 한다

다국어 초록 (Multilingual Abstract)

Due to rapidly increased urbanization, impervious area has been extended and concerns about urban flooding has been increased as well. A lot of effort has been made to restore the urban water circulation. Low Impact Development (LID) technology that consist of retention, infiltration, and evapotranspiration has begun to attract attention to simulate the hydrologic phenomenon before and after development. Many researches on the technique is being actively conducted. In this study, the effect on reducing runoff in urban catchment was analyzed and evaluated by applying LID techniques using SWMM and six scenarios. A SWMM-LID model was built for the Gasan 1 rainwater pumping station basin, and Green Roof and Permeable Pavement were selected as LID techniques to be applied. As a result, the reduction effect of the permeable pavement was larger than green roof. In the future, the results could be used to design a LID facility using the characteristics of the watershed, and other urban water resource factors such as river and groundwater levels that affect each other should be considered, so that the entire system can be considered.

목차 (Table of Contents)

• 1. 서 론 2. 연구방법 3. 결과 및 고찰 4. 결 론 감사의 글 References

참고문헌 (Reference)

• 1 윤재봉, "폭우재해 완화를 위한 도시설계요소 효과분석 : 부산광역시 감전1 침수위험지구를 중심으로" 동아대학교 대학원 2013
• 2 임용균, "친환경적 도시개발을 위한 LID기술 적용에 대한 연구" 부산대학교 대학원 2011
• 3 한양희, "자동 유량-수질 모니터링 시스템을 이용한 도시 소하천 관리 방안에 관한 연구" 충남대학교 대학원 2014
• 4 U.S. Departament of HUD, "The practice of low impact development"
• 5 Cho, EY, "The analysis of LID adaptation efficiency on urban basin based on SWMM-LID model" Pusan National University 2012
• 6 EPA, "Storm water management model application manual Version 5.0"
• 7 박준호, "SWMM을 이용한 춘천 거두 1지구의 LID 개념 적용으로 인한 유출 감소 특성 분석" 한국물환경학회 24 (24): 806-816, 2008
• 8 신동수, "SWMM-LID를 이용한 상습침수유역 내 유출저감효과 분석" 한국방재학회 13 (13): 303-309, 2013
• 9 Fairfax County, "Public facilities manual"
• 10 Ministry of Environment, "Preparation of management plan for natural boiling point pollution sources using LID method" 2009
• 11 Palla, A., "Modelling storm water control operated by green roofs at the urban catchment scale" 2008
• 12 Department of Environmental resources, "Lowimpact development: an integrated desing approach" Department of Environmental Resources, Prince George’s County 1999
• 13 Brown, T., "Low impact stormwater management approaches fow college gardens" 2007
• 14 SEMCOG, "Low impact development manual for Michigan: A Design Guide for Implementors and Reviewer"
• 15 Kim, RH, "Low impact development and green infrastructure in SouthKorea: Trends and Future Directions" Korea Institute of Civil Engineering and Building Technology 84-88, 2016
• 16 Wright, J., "LID types, selection, design and construction considerations" 2011
• 17 Baek, JR, "Improvement of SWMM-LID module for water quaility modeling of bioretention" Korea University 2014
• 18 Ministry of Environment, "Guidelines for low impact development (LID) technology elements"
• 19 National Institute of Environmental Research, "Guideline for non-point sources management in TMDL"
• 20 EPA, "Fact sheet: Reducing stormwater costs through low impact development(LID) strategies and practices"
• 21 Choi, JY, "Development project for total contamination management and research on optimal management methods for non-point sources of contamination in the workplace" Korea Environment Institute 2009
• 22 Hyun, KH, "Development plan for water-cycle green city in Asan new town" Land & Housing Institute 2010
• 23 Lee, HM, "Cost-effective application of pipelines and LID techniques for reduction of urban flooding and environmental load" Kongju National University 2019
• 24 Choi, hs, "Application and effects of low Impact development in urban regeneration of waterfront areas" 2010
• 25 Joo, JS, "Analysis of the characteristics of non-point pollutant runoff and effects of SWMM-LID in industrial area" Pusan National University 2012
• 26 Lee, MJ, "An analysis of runoff reduction Effect by using SWMM-LID model in university campus" Jeonbuk National University 2021
• 27 The Philadelphia Water Department, "Amended green city, clean waters-The city of Philadelphia’s program for combined sewer overflow control program summary" PWD 2009
• 28 Kim, YM, "A study on the effective urban runoff reduction using SWMM-LID model" Kyungpook National University 2020
• 29 Back, JS, "A study on adaptive LID region selection based on urban Hydro-Geomorphological properties" Pusan National University 2015
• 30 Elliott, A.H., "A review of models for low impact urban stormwater drainage" Elsevier BV 22 (22): 394-405, 2007