期刊
MATHEMATICAL PROBLEMS IN ENGINEERING
卷 2013, 期 -, 页码 -出版社
HINDAWI LTD
DOI: 10.1155/2013/969021
关键词
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资金
- Open Foundation of State Key Laboratory of Hydrology-Water Resources [2012490211]
- Northwest AF University [2012BSJJ007]
- Fundamental Research Funds for the Central Universities [QN2013046]
- Key Project of the National Natural Science Foundation of China [51139001]
The study on diagnosis method of concrete crack behavior abnormality has always been a hot spot and difficulty in the safety monitoring field of hydraulic structure. Based on the performance of concrete dam crack behavior abnormality in parametric statistical model and nonparametric statistical model, the internal relation between concrete dam crack behavior abnormality and statistical change point theory is deeply analyzed from the model structure instability of parametric statistical model and change of sequence distribution law of nonparametric statistical model. On this basis, through the reduction of change point problem, the establishment of basic nonparametric change point model, and asymptotic analysis on test method of basic change point problem, the nonparametric change point diagnosis method of concrete dam crack behavior abnormality is created in consideration of the situation that in practice concrete dam crack behavior may have more abnormality points. And the nonparametric change point diagnosis method of concrete dam crack behavior abnormality is used in the actual project, demonstrating the effectiveness and scientific reasonableness of the method established. Meanwhile, the nonparametric change point diagnosis method of concrete dam crack behavior abnormality has a complete theoretical basis and strong practicality with a broad application prospect in actual project.
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