Abnormality monitoring model of cracks in concrete dams

被引:0
|
作者
TengFei Bao
Dong Qin
XiWu Zhou
GuiFen Wu
机构
[1] Hohai University,State Key Laboratory of Hydrology
[2] National Engineering Research Center of Water Resources Efficient Utilization and Engineering Safety,Water Resources and Hydraulic Engineering
[3] Jiangsu Province Water Resources Engineering Consulted Co. Ltd.,undefined
[4] China Huadian Engineering Co. Ltd.,undefined
来源
关键词
concrete dam; cracks; abnormality monitoring model; a linear hypothesis; abnormality diagnosis; particle swarm optimization method;
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学科分类号
摘要
The abnormality monitoring model (AMM) of cracks in concrete dams is established through integrating safety monitoring theories with abnormality diagnosis methods of cracks. In addition, emphasis is placed on the influence of crack depth on crack mouth opening displacement (CMOD). A linear hypothesis is proposed for the propagation process of cracks in concrete based on the fictitious crack model (FCM). Abnormality points are detected through testing methods of dynamical structure mutation and statistical model mutation. The solution of AMM is transformed into a global optimization problem, which is solved by the particle swarm optimization (PSO) method. Therefore, the AMM of cracks in concrete dams is established and solved completely. In the end of the paper, the proposed model is validated by a typical crack at the 105 m elevation of a concrete gravity arch dam.
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页码:1914 / 1922
页数:8
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