Monitoring and numerical analysis of behaviour of Miaojiaba concrete-face rockfill dam built on river gravel foundation in China |
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| Institution: | 1. Dept. of Regional Infrastructure Engineering, Kangwon National University, Chuncheon-si, Gangwon-do 200-701, Republic of Korea;2. Engineering and Construction Group, Samsung C&T, Seoul, Republic of Korea;3. Institute for Advanced Construction Materials, Kangwon National University, Chuncheon-si, Gangwon-do, Republic of Korea;4. Korea Water Resources Corporation, Daejeon, Republic of Korea;1. Institute of Water Resources and Hydro-electric Engineering, Xi''an University of Technology, NO.5 South Jinhua Road, Xi''an, Shanxi 710048, China;2. State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China (Xi''an University of Technology), NO.5 South Jinhua Road, Xi''an, Shanxi 710048, China;3. Institute of Hydraulic Engineering and Water Resources Management, Graz University of Technology, Graz, Styria 8010, Austria |
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| Abstract: | This study evaluated the behaviour of a concrete face rockfill dam (CFRD) built on river gravel foundation on the basis of in-situ measurement records and numerical analysis. The monitoring records were obtained from a detailed deformation-monitoring system. A 3D finite element analysis was performed to assess long-term dam behaviour. The behaviour of the CFRD built on river gravel foundation was analysed comprehensively. A discussion of behaviour, especially with relevance to the behaviour of dams built on stiff-foundation, was included. The effect of the river gravel foundation was analysed, and the exact mechanisms were discussed. The relative contribution of various factors on the long-term behaviour of the CFRD was also studied. In-situ measurements were compared with numerical results to discuss the capability of the numerical model to predict the dam behaviour. |
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| Keywords: | Concrete face rockfill dam Deformation behaviour River gravel foundation Monitoring Numerical analysis |
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