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http://dx.doi.org/10.11001/jksww.2013.27.6.787

Failure Risk Assessment of Reinforced Concrete Sewer Pipes on Joint-Related Defects  

Han, Sangjong (한국건설기술연구원 환경연구실)
Shin, Hyunjun (한국건설기술연구원 환경연구실)
Hwang, Hwankook (한국건설기술연구원 환경연구실)
Publication Information
Journal of Korean Society of Water and Wastewater / v.27, no.6, 2013 , pp. 787-796 More about this Journal
Abstract
Sewer joint-related defect is one of the most common domestic sewer defects along with the lateral pipe problem. However, there are currently no criteria that precisely assess the joint-related sewer defects. Therefore, this study examined the joint-related sewer defects found in domestic circumstances, classified them according to the suggested defect code, and presented the examples of defect pictures. Each defect code was organized as the process of out of pipeline alignment (OPA) which shows the progress in deterioration. Each defect was classified into 5 grades depending on appropriate repair and rehabilitation method. The result of this study is expected to be useful for domestic CCTV inspectors to assess the sewer condition and helpful for managers to make a decision of repair and rehabilitation.
Keywords
Sewer; CCTV inspection; Joint-related Defect; Failure Risk Assessment;
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