한국지반공학회논문집 (Journal of the Korean Geotechnical Society)

한국지반공학회 (Korean Geotechnical Society)
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콘크리트 표면차수벽형 석괴댐의 침투량 예측 분석

Prediction of the Seepage Rate of Concrete Face Rockfill Dam

  • 최칠용 (한국수자원공사 스마트시티처 ) ;
  • 김민태 (고려대학교 건축사회환경공학부)
  • Choi, Chill-Yong (Smart City Development Dept., Korea Water Resources Corporation) ;
  • Kim, Min-Tae (Sch. of Civil, Environmental and Architectural Engrg., Korea Univ.)
  • 투고 : 2023.08.11
  • 심사 : 2023.08.30
  • 발행 : 2023.10.31
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초록

콘크리트 표면차수벽형 석괴댐의 기초지반을 통한 침투량 예측 방법을 제시하기 위해 침투량에 영향을 주는 수위, 댐 크기, 투수계수 등 다양한 조건을 고려한 수치해석을 실시하였다. 기초 그라우팅과 침투량의 관계에서는 그라우팅 재료의 투수계수와 암반 투수계수의 적정성이 침투량에 영향을 미치는 중요한 인자로 작용하였다. 또한 수치해석 결과 침투량이 초기에는 급격히 감소하다가 댐 면적이 증가함에 따라 완만하게 감소하는 경향을 보였다. 연구 결과를 통하여 다양한 매개변수를 고려한 수치해석 입력인자 및 결과가 댐의 설계 시 중요한 기초자료로 활용할 수 있으며 운영 및 유지관리 단계에서 합리적인 댐의 침투량을 산정하는 방법으로 활용할 수 있을 것으로 판단된다.

This research aimed to predict the seepage rate in the base rocks of a concrete face rockfill dam (CFRD) by conducting numerical analysis under various conditions. We examined the relationship between basic grouting and seepage, emphasizing the significance of the permeability coefficient of the grouting material and the rock. Moreover, we observed a decrease in seepage with an increase in the cross-sectional area of the dam. The results of this study provide essential input factors and outcomes of numerical analysis, incorporating various parameters, to inform the design phase. Additionally, our findings offer a dependable approach for calculating a reasonable seepage rate during both operational and maintenance phases.

키워드

참고문헌

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