Proceedings of the Korean Geotechical Society Conference (한국지반공학회:학술대회논문집)
- 2006.03a
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- Pages.784-793
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- 2006
Centrifuge tests for simulating the behavior of CFRD with increasing water level
수위 상승에 따른 CFRD(콘크리트 표면차수벽형 석괴댐)의 거동 모사 원심모형시험
- Seo, Min-Woo (Korea Institute of Water and Environment, Korea Water Resources Corporation) ;
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Im, Eun-Sang
(Korea Institute of Water and Environment, Korea Water Resources Corporation) ;
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Kim, Yong-Seong
(Disaster Mitigation Measures Team, National Emergency Management Agency) ;
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Ha, Ik-Soo
(Korea Institute of Water and Environment, Korea Water Resources Corporation)
- Published : 2006.03.24
Abstract
As the number of CFRD constructions increases, the necessity of an accurate assessment on its behavior also has been increasing accordingly. The performance of concrete faced rockfill dam (CFRD) under different water levels is greatly concerned by dam engineers and designers in the world. However, domestic research on CFRD design and construction has yet been insignificant. This study deals with three centrifuge model tests, mainly investigates the deformation of the concrete faced slabs with different face slab stiffness under different water levels. The prototype of a centrifugal model dam is half size of domestic CFRD dam. Detailed material preparation, model design, model set-up, model instrumentation and testing procedures are presented. In order to simulate the prototype concrete faced slab, three kinds of thin fiberglass plates with different thickness was adopted in the three model tests. The water level control facility was specially designed for this experiment to control the water level rise and drawdown during centrifuge flight. Although most of the results from the three model tests are satisfactory, it is also required that the centrifuge test results should be compared with those of numerical analysis and field measurements to analyze the centrifuge test results more in detail.