Journal of the Korean Geotechnical Society (한국지반공학회논문집)

Korean Geotechnical Society (한국지반공학회)
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Laboratory Test of Molecular Vibration for Preventing Drainage Pipe Blockage in Deteriorated Tunnel

분자진동을 이용한 터널 배수공 막힘 억제의 실내시험 연구

  • Yoon, Se-Hwan (Dept. of Civil and Environmental Engineering, Hanyang Univ.) ;
  • Park, Eun-Hyung (Dept. of Civil and Environmental Engineering, Hanyang Univ.) ;
  • Lee, Jong-Hwi (Dept. of Civil and Environmental Engineering, Hanyang Univ.) ;
  • Chun, Byung-Sik (Dept. of Civil and Environmental Engineering, Hanyang Univ.)
  • 윤세환 (한양대학교 건설환경공학과) ;
  • 박은형 (한양대학교 건설환경공학과) ;
  • 이종휘 (한양대학교 건설환경공학과) ;
  • 천병식 (한양대학교 건설환경공학과)
  • Received : 2012.06.30
  • Accepted : 2012.10.19
  • Published : 2012.10.28
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Abstract

Clogging of drainage pipes by scale is an important problem in civil engineering works. Although scale deposits can be removed by acid treatment or water jetting, these treatments are costly and have many disadvantages. In this study, scale samples from tunnel drainage pipes were analyzed using SEM-EDS and XRD. The main ingredient in scale was $CaCO_3$ of the calcite crystal form. Drainage experiments and recirculation type experiments were conducted to control and remove scale deposits, which were determined through visual and weight measuring analysis. As a result, Quantum Stick has the effect of limiting formation of scale.

최근 국내 터널들이 노후화됨에 따라 배수공 막힘현상이 가장 큰 문제점 중 하나로 보수대책 공법이 필요한 실정이다. 현재는 유지 관리용 Robot이나 Water Jet Cleaning공법 등으로 배수공 내 생성된 스케일을 제거하고 있지만 비용이 비싸고 주기적인 관리를 필요로 하는 단점을 가지고 있다. 본 연구에서는 터널 배수공 내의 스케일을 SEM-EDS와 XRD로 분석하였고, 침전물은 탄산칼슘($CaCO_3$)성분의 스케일로 calcite로 확인되었다. 침전물 생성 억제 및 제거를 위해 퀀텀스틱 신기술을 사용하여 개방형 배수시험, 순환식 폐쇄수조시험을 실시하였다. 무게측정분석, 육안분석, 경도변화분석을 통하여 요소기술로 인한 스케일 생성량이 확연히 줄었음을 확인하였다. 결과적으로 퀀텀스틱이 배수공 내 침전물 생성을 방지하는데 효과가 있음을 확인할 수 있었다.

Keywords

References

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