Journal of Korean Society of Water and Wastewater (상하수도학회지)

The Korean Society of Water and Wastewater (대한상하수도학회)
권호 표지

The Experimental Study of Scale Removal Using Ultra High Water Pressure in the Old Steel Water Pipe

초고압수를 이용한 노후한 도수 강관 내 스케일 제거에 대한 실험적 연구

  • 서태원 (국립안동대학교 기계공학부) ;
  • 김진동 ((주) 태주종합철강 기술연구소) ;
  • 서현원 ((주) 태주종합철강 기술연구소) ;
  • 김태동 (국립안동대학교 환경공학과)
  • Published : 2008.08.15
Download PDF
⟨ Previous Next ⟩

Abstract

This technical paper is proposing a sound concept in the application of the rehabilitation method of the water supply steel pipe in the large diameter ranged from 1,800mm to 3,500mm. There were conducted the experimental tests for the specimens as well as the real steel pipe of diameter 2,200mm. The water pressure ejected from nozzle tip should be at least 2,500bar to have the satisfied surface profiles required in the design criterion. The most difficult thing is to keep the water pressure at the nozzle tip as 2,500bar during the consecutive work in the interval of the work site more than 1km. It is found that the method suggested in this study is adequate method to meet the specified design criteria. The results of this study provide the useful information how to setup the equipments for the successful work. This method also provides not only the omission of the blasting process but also the effect of the budget reduction.

Keywords

References

  1. 환경부 (2005) 2004 상수도 통계, p. 875, 환경부
  2. 한국수자원공사 (2007) 수도권광역상수도 1단계 도수시설 개량 공사 기본계획보고서, p. 129, 수자원공사, 대전
  3. 한국수자원공사 (2007) 수도권광역상수도 1단계 도수시설 개량 공사 기본설계보고서, p. 198, 수자원공사, 대전