Journal of The Korean Society of Agricultural Engineers (한국농공학회논문집)

The Korean Society of Agricultural Engineers (한국농공학회)
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Simulation of Effects of the Size of Embedded Rock Layer under Earth Fill on Seepage Problems of Sea-dike

방조제 바닥사석층의 규모가 제체 침투문제에 미치는 영향에 대한 모의 분석

  • 이행우 (농림부 농촌정책국) ;
  • 장병욱 (서울대학교 농업생명과학대학 조경지역시스템공학부) ;
  • 송창섭 (충북대학교 농업생명환경대학 지역건설공학과) ;
  • 원정윤 (미 텍사스 Austin대학 토목공학과)
  • Published : 2006.01.01
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Abstract

Numerical analyses were carried out for studying on seepage problems due to seawater intrusion through the embedded rock layers of the sea-dike. A seepage analysis model, SAMTLE was developed fur two-layer embankment system. The analyses by SAMTLE showed that the size of embedded rock layer had a significant effect on the seepage problems of sea-dike. If the embedded rock layer is longer and thicker, the seepage problems become more serious to water head, seepage rate and safety factor of piping in embankment. On the other hand, if the width of embedded rock layer is equivalent to the sea-dike's bottom width, the water head becomes lower and seepage rate and safety factor of piping are dramatically increasing. This makes another seepage problems such that the fresh water becomes saltier and higher seepage rates result in internal erosion of sea-dike.

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References

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