Journal of Korean Society of Water and Wastewater (상하수도학회지)

The Korean Society of Water and Wastewater (대한상하수도학회)
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Evaluation of Defect Types for Characteristic Database Construction of Large Sewage Box Culverts

대형 하수박스암거의 속성 데이터베이스 구축을 위한 결함유형 평가

  • Han, Sangjong (Korea Institute of Civil Engineering and Building Technology, Environmental and Plant Engineering Research Institute) ;
  • Song, Homyeon (Korea Institute of Civil Engineering and Building Technology, Environmental and Plant Engineering Research Institute)
  • 한상종 (한국건설기술연구원 환경.플랜트연구소) ;
  • 송호면 (한국건설기술연구원 환경.플랜트연구소)
  • Received : 2017.10.30
  • Accepted : 2017.12.07
  • Published : 2017.12.15
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Abstract

As the 3D laser scanning technology capable of databaseing large sewage box culverts becomes possible, it is necessary to develop a standardization manual that can clearly distinguish the structural and operational defect types of box culver and analyze the defect data. In this study, we collected and analyzed defects in sewage box culverts of 14,827m in total by selecting three districts in Korea. The major defects were surface damages, and their defect densities were $2.17m^2/m$, $0.27m^2/m$ and $0.10m^2/m$ for aggregate exposure, Steel reinforcement exposure, and Steel reinforcement projecting. In order to support the decision of the box culverment management, it was divided into five grades and each defect code and defect score were allocated. The results of this study are useful for the diagnosis of the sewage box culverts in Korea and it is expected to support a decision making for management.

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References

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