대한토목학회논문집 (KSCE Journal of Civil and Environmental Engineering Research)

  • 제40권1호
  • /
  • Pages.43-49
  • /
  • 2020
  • /
  • 1015-6348(pISSN)
  • /
  • 2799-9629(eISSN)
대한토목학회 (Korean Society of Civil Engeneers)
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저 마루높이 구조물의 피복재 안정성 실험: Tripod 피복 조건

Experiments for Amour Stability of Low Crested Structure covered by Tripod Block

  • 이종인 (전남대학교 공학대학 해양토목공학과) ;
  • 배일로 (전남대학교 해안항만실험센터) ;
  • 임호석 (전남대학교 대학원 건축토목공학과)
  • 투고 : 2019.12.16
  • 심사 : 2019.12.30
  • 발행 : 2020.02.01
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초록

본 연구에서는 Tripod로 피복된 저 마루높이 구조물의 안정성을 검토하기 위해 2차원 수리실험을 수행하였다. Tripod의 안정성은 구조물 상부, 전사면 및 후사면을 대상으로 파형경사와 여유고를 변화시키며 검토하였다. 수행된 2차원 실험결과를 이용하여 Tripod의 안정계수 산정을 위한 경험식을 제안하였다. 그러나 Tripod는 형상으로 인해 양압력이 Tetrapod와 피복석에 비해 크기 때문에 저 마루높이 구조물의 주 피복재로는 적절하지 않다고 생각된다.

In this study, the stability of the low crested structure armoured by Tripod block has been investigated using two-dimensional hydraulic model tests. The effect of wave steepness and freeboard on the rock stability on crest, front, and the rear slope has been investigated. From the experimental data, the new empirical formula for the stability coefficients of the Tripod block was proposed. But Tripod is not proper to use the armour block of the low crested structure because the uplift force of this block is greater than that of Tetrapod and rock.

키워드

참고문헌

  1. Lee, J. I., Bae, I. R. and Moon, G. I. (2019). "Experiments for armour stability of low crested structure covered by Tetrapods." Journal of the Korean Society of Civil Engineers, KSCE, Vol. 29, No. 6, pp. 769-777 (in Korean).
  2. Lee, J. I., Bae, I. R. and Moon, G. I. (2020). "Experiments for armour stability of low crested structure covered by rocks." Journal of the Korean Society of Civil Engineers, KSCE, Vol. 40, No. 1 (in Korean).
  3. Powell, K. A. and Allsop, N. W. (1985). Low-crested breakwaters, hydraulic performance and stability, Report No. SR 57, Hydraulic Research Station, Wallingford, England.
  4. van der Meer, J. W. and d'Angremond, K. (1991). "Wave transmission at low-crested structures." Thomas Telford. In: Coastal structures and breakwaters, ICE, London, United Kingdom, pp. 25-42.
  5. van der Meer, J. W. and Pilarczyk, K. W. (1990). "Stability of lowcrested and reef breakwaters." 22nd International Conference on Coastal Engineering(ICCE), ASCE, Delft, The Netherlands.
  6. Vidal, C., Losada, M. A., Medina, R., Mansard, E. P. D. and Gomez-Pina, G. (1992). "An universal analysis for the stability of both low-crested and submerged breakwaters." 23rd International Conference on Coastal Engineering, ASCE, Venice.