A zoned earth dam 40 m high is analysed and modelled using a numerical code able to deal with unsaturated–saturated soils and the coupled hydro-mechanical phenomena. The paper discusses the selection of the materials for the design of the dam. The dam construction was modelled at the design stage (a type “A” calculation) and results are compared with actual measurements registered during construction until the time when the dam reached two-thirds of the total final height. The limitations of the type A model are discussed and an updated model is presented taking into account compaction data and field tests performed during construction. Keywords Earth dam · Unsaturated soils · Compaction conditions · Numerical modelling · Real case 1 Introduction construction by control and monitoring activities and the process of building a representative finite element model. Albagés dam is located in Lleida Province, Catalunya, The model handles the unsaturated–saturated nature of the North-East Spain. It is being completed at the time of writ- materials and the coupled phenomena, which explains the ing this paper (June 2017, see Fig. 1). The dam is a 90 m generation and dissipation of pore pressures and the associ- high, zoned earth structure, which serves the purpose of ated mechanical behaviour. A
International Journal of Civil Engineering – Springer Journals
Published: May 31, 2018
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