Assessment of dam safety using the approximate entropy method

2nd International Symposium on Resource Exploration and Environmental Science

生态环境科学

Xie, Zhongkai^1,2 ; Chen, Wenliang^1,2 ; Wang, Liang^1,2 ; Deng, Chengfa^1,2 ; Guan, Chi^3

Zhejiang Institute of Hydraulics and Estuary, Hangzhou, China^1

Zhejiang Institute of Marine Planning and Design, Hangzhou, China^2

School of Management Science and Engineering, Zhejiang Gongshang University, Hangzhou, China^3

关键词: Approximate entropy;    Dam engineering;    Health monitoring;    High robustness;    Horizontal displacements;    Operation conditions;    Programming algorithms;    Theoretical framework;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/170/3/032037/pdf
DOI  :  10.1088/1755-1315/170/3/032037

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

One of the most important research focuses in today's dam engineering is related to health monitoring of reservoir dams. A novel method named Approximate Entropy (ApEn) is introduced to evaluate the operation condition of gravity dam by monitoring data in this paper, which has been proved to be very successful while applied in many other disciplines, such as the fields of economics, medicals and mechanical, etc. The theoretical framework of ApEn together with a modified programming algorithm are proposed first, and then a quantitative relationship between the horizontal displacement of 14 different measure points located on a practical gravity dam is established. The results of the practical applications have shown that ApEn can effectively and efficiently diagnose the health state of the dam, with high robustness and strong ability to resist noise.