Journal of Coastal Disaster Prevention (한국연안방재학회지)

Korean Society of Coastal Disaster Prevention (한국연안방재학회)
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Dredging Material High Efficiency Transport Technology Test by Using the Electro Magnetic Field and Development of the Technical Design Manual

전자기장을 이용한 준설토 고효율 이송기술 실증 및 기술 지침 개발

  • 김동철 ((주)혜인이엔씨 기술연구소) ;
  • 김유승 ((주)KTMG(주)) ;
  • 여찬수 ((주)KTMG(주)) ;
  • 김선빈 (한국해양과학기술원 해안개발 에너지 연구부) ;
  • 박승민 ((주)혜인이엔씨 기술연구소)
  • Received : 2018.05.15
  • Accepted : 2018.07.18
  • Published : 2018.10.31
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Abstract

As the research about increasing the efficiency of dredging soil transport, the technology, which reduce the friction between pipe wall and fluid in the pipe and disturbed generating pipe blockage, has been developed. So for the purpose of applying this technology to real construction site, main test has been tried at the real scale test in field. As a test result, this paper will show 30% flow efficiency increasing by permitted electro magnetic force to the pipe. And test result was evaluated as a ultra sonic velocity profiler. To propose the design technique and the execution manual of the high efficiency dredging material transport technic, this research have confirmed flow status changing depending on a soil material kind under electro-magnetic field and analyze the effect of electro-magnetic field which affects to each dredged soil material transportation. For achieving this research, EMF(Electro-Magnetic Field) generator is installed on the dredger(20,000HP) and through monitored flow status, dredging soil flow rate and sampled material specification is confirmed. Also dredger operating condition is measured and dredger power for soil transportation, hydraulic gradient and flow rate are compared, as transportation efficiency is calculated by this parameter, it is possible to check transportation efficiency improvement depending on each dredged soil material under electro-magnetic field. To verify the technique of dredged soil transfer using electromagnetic field, which is the core technique of the high efficiency dredged soil transfer, and the technique of expert system for pipeline transfer and the flow state. This could lead to a verification of transfer efficiency according to the characteristics of the dredged soil (sand, clay, silt) and the transfer distance (5km, 10km, 15km), which is planned to be used for a technology development of pump power reduction and long-distance transfer applying the high efficiency dredged soil transfer technology.

Keywords

Acknowledgement

Grant : 환경 친화적 준설토 확보, 매립 및 운송거리 30km이상급 이송기술 개발

Supported by : 국토교통과학기술진흥원

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