침투통의 설치에 따른 치수효과 분석

Analysis on the Effect of Infiltration Collector Well Installation on the Water Control

본 연구에서는 시범지역에 설치된 침투통을 대상으로 실시간으로 현장계측을 수행하고 이들 자료를 분석 하여 효과를 정량적으로 분석하였으며, 분석 결과를 이용하여 용인시 기흥구갈 택지개발지구를 대상유역으로 선정하여 2003년 실제 강우사상에 대하여 침투통의 유출저감효과를 PCSWMM 모형을 이용하여 분석하였다. 연구결과 침투통의 유출저감효과는 $65\~98\%$로 나타났으며, 실제 강우를 내상으로 하여 전체유역에서 시설설치가 가능한 유역에 대하여 침투통을 확대 설치하여 모의한 결과 $15\~23\%$의 유출저감율과 $3\~25\%$의 첨두유출 저감효과를 보였다. 따라서, 침투통은 강우강도나 지속시간에 따라 차이는 있지만 도시유역의 우수유출을 저감시킬 수 있는 효과적인 시설로 확인되었다.

In this study, the runoff reduction effect was analyzed quantitatively focusing on the infiltration collector well located in the test area. On the basis of the analysis of the data obtained by examining the real-time measurement field data, the runoff reduction was examined through the measured rainfall of the year 2003 by applying the analysis result, with the PCSWMM model to the Kiheung-Gugal residential area, which is selected as the test basin. According to the analysis, it is revealed that an infiltration collector well can reduce up to $65\~98\%$ of runoffs, compared to a conventional one. For measured rainfalls, an infiltration collector well was able to reduce up to $15\~23\%$ of runoffs and $3\~25\%$ of peak runoffs. These results show that the effects of infiltration collector wells might vary with rainfall intensity and its duration. However, the infiltration collector well was confirmed as the one of the alternatives of runoff reduction facilities in urbanized catchment.