국내 하수관로 결함빈도 분석을 통한 CCTV 조사결함항목 코드 제안Suggestion of the Domestic CCTV Inspection Sewer Pipe Defect Codeby Sewer Defect Frequency Analysis
- Authors
- 손주영; 오재일; 이재현; 김정률; 윤성수
- Issue Date
- 2016
- Publisher
- 대한상하수도학회
- Keywords
- 상태등급 산정방법; 결함빈도; 하수관로 CCTV 조사; 하수관로 상태평가; 하수관로 결함항목; condition grading protocol; defect frequency; sewer CCTV inspection; sewer condition assessment; sewer defect code
- Citation
- 상하수도학회지, v.30, no.6, pp 623 - 634
- Pages
- 12
- Journal Title
- 상하수도학회지
- Volume
- 30
- Number
- 6
- Start Page
- 623
- End Page
- 634
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/7738
- DOI
- 10.11001/jksww.2016.30.6.623
- ISSN
- 1225-7672
2287-822X
- Abstract
- Sewer condition assessment involves the determination of defective points and status of aged sewers by a CCTV inspection according to the standard manual. Therefore, it is important to establish a reliable and effective standard manual for identifying the sewer defect. In this study, analytic reviews of the CCTV inspection manuals of the UK, New Zealand, Canada and South Korea were performed in order to compare the defect codes and the protocols of condition assessment.Through this, we also established the standardized method for defect code and revised the calculation method of assigning the condition grade. Analyses of the types and frequencies of sewer defects that obtained by CCTV inspection of 7000 case results, showed that the joint defect and lateral defect were the most frequent defects that occurred in Korea.Some defect codes are found to be modified because those did not occur at all. This study includes a proposed new sewer defect codes based on sewer characteristics.
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Collections - College of Engineering > ETC > 1. Journal Articles
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