Journal of Wetlands Research (한국습지학회지)

Korean Wetlands Society (한국습지학회)
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An Experimental Study on Dredging Efficiency for Cutter Head Type

커터헤드 형태에 따른 준설효율에 관한 실험적 연구

  • Park, Jae Hyeon (Department of Civil and Urban Engineering, Inje University) ;
  • Kim, Young Do (Department of Environmental Science and Engineering (NRERC), Inje University) ;
  • Lee, Man Soo (Hyundai Engineering & Construction)
  • 박재현 (인제대학교 토목도시공학부) ;
  • 김영도 (인제대학교 환경공학부(낙동강유역환경연구센터)) ;
  • 이만수 (현대건설(주) 토목환경사업본부)
  • Received : 2012.12.02
  • Accepted : 2013.02.14
  • Published : 2013.02.28
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Abstract

In this study, the hydraulic experiments were conducted for the dredging efficiency of the cutter head type, which includes the open type and the close type cutter head. The dredging experimental instrument was installed in the large water tank which has the dimension of $4.9m(L){\times}2.2m(W){\times}1.5m(H)$. The dredging experiments were performed for the various conditions of dredging depth, rotating speed, and suction speed of the cutter head. As the results, the dredging efficiency of the close-type cutter head is much higher than that of the open-type cutter head. The dredging efficiency of the same cutter head type was mainly influenced by the rotating speed of cutter head. Also the adequate suction speed of the cutter head is needed for more effective dredging.

본 연구에서는 준설용 커터헤드의 형태에 따른 준설효율 특성을 분석하기 위하여 개방형 및 폐쇄형으로 나누어 수리실험을 수행하였다. 준설효율에 관한 실험을 수행하기 위하여 $4.9m(L){\times}2.2m(W){\times}1.5m(H)$ 크기의 대형수조를 제작한 후 준설 운영에 필요한 여러 장치를 제작하였다. 준설효율 실험에서는 커터헤드의 준설깊이, 회전속도, 흡입속도 등에 관한 운영조건을 달리하여 실험을 수행하였다. 준설효율에 관한 실험 결과를 살펴보면 개방형의 경우보다 폐쇄형의 경우에 상당히 높은 준설효율을 유지하였다. 동일한 커터헤드의 형태에서는 커터헤드의 회전속도가 준설효율 결과에 가장 큰 영향을 미쳤으며, 보다 높은 준설효율을 위해서는 적정수준의 흡입속도가 필요한 것으로 나타났다.

Keywords

References

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