KSCE Journal of Civil and Environmental Engineering Research (대한토목학회논문집)

Korean Society of Civil Engeneers (대한토목학회)
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A Study of the Automatic Operation Performance of a Pump Station using Resilience Considering Residual Flows

잔류유량 기반 복원력 지수를 통한 빗물펌프장 자동운영 성능 검토

  • 김영남 (충북대학교 토목공학과) ;
  • 이의훈 (충북대학교 토목공학부)
  • Received : 2021.12.10
  • Accepted : 2022.09.01
  • Published : 2022.12.01
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Abstract

Non-structural improvements to urban drainage systems are necessary to overcome the elevated levels of urban flood damage. This study proposed a type of automatic pump/gate operation technology for urban pump stations that takes reservoir inflows and river water levels into account and its performance is compared with the current operation using the concept of residual flow-based resilience. The proposed automatic operation relies on three pump operations and two gate operations. The water depth at the monitoring node was used for the pump operation, and the monitoring node was selected in consideration of the first overflow node and the maximum overflow node. The target area is the Daegu Bisan urban pump station, and the rainfall data consisted of probability rainfall sets with durations of 30 minutes, 60 minutes, 90 minutes and 120 minutes, and frequencies of 30, 50, and 70 years. As a result of the application of the proposed operation, differences in the resilience between the automatic operation and the current operation were at least 5.20E-05 with a maximum of 8.07E-04. The longer the duration is, the greater the difference in the resilience.

증가하는 도시 침수 피해에 대응하기 위해서는 내배수시스템의 비구조적인 개선이 필요하다. 본 연구에서는 유수지 유입량과 외수위를 고려한 빗물펌프장 펌프/수문 자동운영 기술을 제안하고, 성능을 평가하기 위해 잔류유량 기반 복원력를 사용하여 기존 운영과의 성능차이를 비교하였다. 제안된 자동운영은 3가지 펌프운영과 2가지 수문운영으로 구성되었다. 펌프운영을 위해 모니터링 지점의 수심을 사용하였으며, 모니터링 지점은 최초월류발생지점과 최대월류발생지점을 고려하여 선택하였다. 대상유역은 대구 비산빗물펌프장이며, 강우자료는 재현기간 30년, 50년 및 70년으로, 지속시간 30분, 60분, 90분 그리고 120분으로 설정한 확률강우를 사용하였다. 적용결과 자동운영과 기존 운영의 복원력 차이는 최소 5.20E-05에서 최대 8.07E-04로 나타났다. 지속시간이 길어질수록 복원력 차이는 크게 나타났다.

Keywords

Acknowledgement

본 논문은 정부(교육부)의 재원을 한국 연구재단의 지원을 받아 수행된 연구입니다(과제번호: NRF-2019R1I1A3A01059929). 본 논문은 2021 CONVENTION 논문을 수정·보완하여 작성되었습니다

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