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Physical modelling of large dams for seismic performance evaluation
| Content Provider | Scilit |
|---|---|
| Author | Kim, N. R. Jo, S. B. |
| Copyright Year | 2018 |
| Description | Book Name: Physical Modelling in Geotechnics |
| Abstract | The performance and safety of large embankment dams subjected to strong earthquake ground motion is one of the major risks in new construction projects. The design and performance of the structure is generally verified by numerical methods in most of engineering practice. Reduced scale physical modelling is often carried out in design and management stages for the same purpose where numerical methods cannot provide sufficient information. In general, physical model tests are designed and carried out according to rigorous scaling principles. However, it is sometimes difficult to follow these principles due to various limitations; equipment, boundary conditions, characteristics of prototype structures, etc. This paper will review the limitations of physical modelling methods and its effects in seismic performance evaluation of large embankment dams. It will also introduce alternative modelling and testing methods to overcome the limitations. A series of tests with a reduced scale embankment dam model are carried out to examine the limitations and to verify the applicability of alternative modelling method. Reduced scale physical modelling is often carried out in design and management stages for the same purpose where numerical methods cannot provide sufficient information. In general, physical model tests are designed and carried out according to rigorous scaling principles. This chapter reviews the limitations of physical modelling methods and its effects in seismic performance evaluation of large embankment dams. It introduces alternative modelling and testing methods to overcome the limitations. Seismic safety is one of the greatest risks in design and constructions of large dams. Seismic responses of large embankment dams have been evaluated by centrifuge tests. The limitations in physical modelling of large embankment dams for experimental evaluation of seismic performance are reviewed and alternative scaling and modelling strategies are introduced. In reality, failure of large dam has great risks to public safety, and most of practical cases which geotechnical engineers are asked to evaluate the seismic performance by physical modelling deal with large dams. |
| Related Links | https://content.taylorfrancis.com/books/download?dac=C2018-0-86960-X&isbn=9780429438646&doi=10.1201/9780429438646-45&format=pdf |
| Ending Page | 1060 |
| Page Count | 6 |
| Starting Page | 1055 |
| DOI | 10.1201/9780429438646-45 |
| Language | English |
| Publisher | Informa UK Limited |
| Publisher Date | 2018-07-11 |
| Access Restriction | Open |
| Subject Keyword | Book Name: Physical Modelling in Geotechnics Geological Engineering Performance Evaluation Physical Modelling Embankment Dams Modelling of Large Scale Physical Rigorous Scaling |
| Content Type | Text |
| Resource Type | Chapter |
