On the multi‐parameters identification of concrete dams: A novel stochastic inverse approach
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| Pubblicato in: | International Journal for Numerical and Analytical Methods in Geomechanics vol. 48, no. 16 (Nov 2024), p. 3792 |
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| Altri autori: | , , , , |
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| Accesso online: | Citation/Abstract |
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| 024 | 7 | |a 10.1002/nag.3812 |2 doi | |
| 035 | |a 3114397793 | ||
| 045 | 2 | |b d20241101 |b d20241130 | |
| 084 | |a 163830 |2 nlm | ||
| 100 | 1 | |a Lin, Chaoning |u College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing, China | |
| 245 | 1 | |a On the multi‐parameters identification of concrete dams: A novel stochastic inverse approach | |
| 260 | |b Wiley Subscription Services, Inc. |c Nov 2024 | ||
| 513 | |a Journal Article | ||
| 520 | 3 | |a This paper introduces a novel stochastic inverse method that utilizes perturbation theory and advanced intelligence techniques to solve the multi‐parameter identification problem of concrete dams using displacement field monitoring data. The proposed method considers the uncertainties associated with the dam displacement monitoring data, which are comprised of two distinct sources: the first is related to stochastic mechanical properties of the dam, and the second is due to observation errors. The displacements at different measuring points generated by dam mechanical properties exhibit spatial correlation, while the observation errors at different points can be considered statistically random. In this context, the inversion formulas are derived for unknown stochastic parameters of the dam by combining perturbation equations and Taylor expansion methods. An improved meta‐heuristic optimization method is employed to identify the mean of stochastic parameters, while mathematical and statistical methods are used to determine the variance of stochastic parameters. The feasibility of the proposed method is verified through numerical examples of a typical dam section under different conditions. Additionally, the paper discusses and demonstrates the applicability of this method in a practical dam project. Results indicate that this method can effectively capture the uncertainty of dam's mechanical properties and separates them from observation errors. | |
| 653 | |a Concrete dams | ||
| 653 | |a Parameters | ||
| 653 | |a Mechanical properties | ||
| 653 | |a Mathematics | ||
| 653 | |a Parameter identification | ||
| 653 | |a Dams | ||
| 653 | |a Inverse method | ||
| 653 | |a Statistical methods | ||
| 653 | |a Taylor series | ||
| 653 | |a Errors | ||
| 653 | |a Monitoring | ||
| 653 | |a Parameter uncertainty | ||
| 653 | |a Perturbation theory | ||
| 653 | |a Heuristic methods | ||
| 653 | |a Project feasibility | ||
| 653 | |a Environmental | ||
| 700 | 1 | |a Du, Xiaohu |u China Renewable Energy Engineering Institute, Beijing, China | |
| 700 | 1 | |a Chen, Siyu |u Dam Safety Management Department, Nanjing Hydraulic Research Institute, Nanjing, China; Key Laboratory of Reservoir Dam Safety, Ministry of Water Resources, Nanjing, China | |
| 700 | 1 | |a Li, Tongchun |u College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing, China | |
| 700 | 1 | |a Zhou, Xinbo |u China Renewable Energy Engineering Institute, Beijing, China | |
| 700 | 1 | |a P H A J M van Gelder |u Faculty of Technology, Policy, and Management, Delft University of Technology, Delft, the Netherlands | |
| 773 | 0 | |t International Journal for Numerical and Analytical Methods in Geomechanics |g vol. 48, no. 16 (Nov 2024), p. 3792 | |
| 786 | 0 | |d ProQuest |t Advanced Technologies & Aerospace Database | |
| 856 | 4 | 1 | |3 Citation/Abstract |u https://www.proquest.com/docview/3114397793/abstract/embedded/7BTGNMKEMPT1V9Z2?source=fedsrch |