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김병성 ( Byungsung Kim ),임석화 ( Seokhwa Lim ),이상진 ( Sangjin Lee ),백종석 ( Jongseok Baek ),김재문 ( Jaemoon Kim ) 한국물환경학회(구 한국수질보전학회) 2020 한국물환경학회지 Vol.36 No.2
Recently, since impervious areas have increased due to urban development, the water cycle system of urban watersheds has been destructed. Hence, researches on LID (Low Impact Development) technique have been conducted to solve such problems environmentally. In order to verify suitability with the scale and arrangement of LID technique, the runoff reduction effect of the LID technique should be analyzed per small watershed unit. In this study, pre-post difference of the runoff by applying the LID was estimated using the rational method and rainwater treatment capacity equation. As a result, the runoff before and after the application of LID were estimated as 22,533.5 m<sup>3</sup> and 14,992.1 m<sup>3</sup>, respectively. In addition, rainfall-runoff simulations were carried out using SWMM to evaluate the efficiency of the LID technique. The SWMM simulation results showed that the runoff before and after the application of LID were 21,174 m<sup>3</sup> and 15,664 m<sup>3</sup>, respectively. Based on the results of the two methods, the scale and arrangement of the LID technique were revised in order to maximize the effect of the water cycle improvement. Rainfall-runoff simulations were carried out using the SWMM with the revised LID techniques. As a result, despite 34.8 % reduction of pervious pavement area, the rate of runoff reduction increased by 2.1 %. These results indicate that designing the scale and arrangement of LID technique, while considering the total amount of inflow entering into each LID techniques, is essential to effectively achieve the goals of runoff reduction in urban development.
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최준우 ( Junwoo Choi ),정종석 ( Jongsuk Jung ),임석화 ( Seokhwa Lim ),최정주 ( Joungjoo Choi ),김신 ( Shin Kim ),현경학 ( Kyounghak Hyun ) 한국환경영향평가학회 2017 환경영향평가 Vol.26 No.3
최근 도시물순환 회복을 위한 저영향개발(LID) 기법 적용에 대한 관심이 증가함에 따라, LID 계획·설계 및 시공, 유지관리 등에 활용할 수 있는 건축정보모델(BIM)에 대한 관심이 증가하고 있다. 이에 따라 본 논문에서는 LID 기법의 계획 및 설계공정 단계에서 BIM의 적용가능성과 활용방안을 검토하고자 2D기반의 설계도서를 통해 산출된 LID 시설물의 물량과 BIM 모델링에서 산출된 LID 시설물의 물량을 자동으로 비교하는 모듈을 개발하여 2D기반 산출물량과 비교검토하였다. BIM 기반 LID 시설물량 자동 검토 모듈을 개발하기 위해서 연구대상지를 선정하고, BIM 모델링을 통해 물량산출표를 추출하였다. 추출된 물량산출표를 2D 기반의 물량산출표와 비교하기 위한 알고리듬을 작성하고, 작성된 알고리듬을 프로그램화해 산출된 물량의 비교·검토를 실시하였다. 대상지에 적용된 LID 시설물의 모델링을 완료하고, LID 시설물량 자동검토 모듈을 이용해 2D 기반 설계도서의 물량산출표와 BIM기반 물량산출표의 비교 검토를 실시하여, 좀 더 정확한 물량산출을 진행하였다. 또한 산출된 결과 중 재료의 물량 오차율이 ±30%를 벗어나는 시설물들의 오차발생 원인을 분석하여 LID 시설물량 자동검토 모듈의 정확도를 검토하였다. LID 시설물량 자동검토 모듈을 통해, 설계도서를 기반으로 한 물량 산출과정에서 발생할 수 있는 오류들을 조기에 발견하고 수정할 수 있을 것으로 보이며, BIM 기반 LID 시설물 종합 관리 시스템 구축의 기반을 마련할 수 있을 것으로 판단된다. Recently, Discussion about BIM based LID (Low Impact Development) facilities management system is activated because interest of LID technique for urban water cycle restoration is increasing. For this reason, this paper developed the auto-checking module of the BIM (Building Information Model) based supply output table. This module will be the foundation of the BIM based LID facilities total management system. The research order is composed like next follows: ① Select target area, ② Make BIM model of LID facilities and extract supply output table, ③ Develop comparison module, ④ Analysis results. As a result, the authors made 27 LID facilities and developed the supply output table comparison automation module. So, the authors could find differences of 2D design documents based supply output table and BIm based supply output table. So, the authors made an improvement suggestion of the design plan and could construct foundation of the BIM based LID facilities total management system.
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LID관련 지방정부 조례제정 특성 기초연구 -서울시, 수원시, 남양주시를 중심으로-
이미홍 ( Mihong Lee ),한양희 ( Yanghui Han ),현경학 ( Kyounghak Hyun ),임석화 ( Seokhwa Lim ) 한국환경영향평가학회 2016 환경영향평가 Vol.25 No.1
This study suggests direction of new ordinance establishment for the future national application of Low Impact Development(LID) by analyzing current LID-related regulations of local governments, substantial agents to install and maintain a facility, through qualitative and quantitative methodologies. Four key words related to LID were derived from advisory conference and then ninety nine ordinances as the LID-related regulations were extracted to analyze. The study shows that rainwater-related ordinance passed in the middle of 2000s are being merely converted to the law on the promotion and support of water reuse. Regulations on water cycle and LID exist only in three cities nationwide(Seoul City, Suwon City and Namangju City). Interview with administrators of three cities to have LID-related regulations revealed following results. First, both rainwater and water reuse related regulations have not considered regional characteristics such as rainfall intensity, effects of impervious and merely followed guidelines by Ministry of Government Administration and Home Affairs. Second, existing ordinance is confined to specific facilities and thus cannot include the concept of LID which covers land and space utilization. Therefore, for proper application of LID, this study proposes issue of ordinance that resembles Seoul City ordinance and a new guideline that can reflect regional characteristics such as rainfall and location.
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