中国水利水电科学研究院学报（中英文）2026，Vol.24Issue(3)：369-377,9.DOI:10.3724/j.jiwhr.20250246
基于频域分解和多测点联合的土压力计测值异常检验方法
Anomaly detection method for earth pressure cell measurements based on frequency domain decomposition and muti-point joint analysis
刘轲 1金鑫鑫 1卢正超 1聂鼎 1商玉洁1
作者信息
- 1. 中国水利水电科学研究院,北京 100038
- 折叠
摘要
Abstract
In the identification of operational behavior of earth pressure cells and structural safety assessment,mea-surement gross errors often coexist with abrupt changes reflecting actual structural responses,thereby compromising the accuracy of safety evaluation.To address this issue,this paper proposes an anomaly detection method for earth pressure cell measurements based on frequency domain decomposition and multi-point joint analysis.Through decom-position and reconstruction in the frequency domain,frequency components representing long-term trends and short-term fluctuations are derived.Subsequently,by integrating correlation analysis and the Isolation Forest algorithm,joint anomaly detection and diagnosis across multiple measurement points are achieved.Case studies based on actual engineering monitoring data demonstrate that the proposed method can accurately distinguish between gross errors and abrupt changes caused by structural anomalies or environmental factors,with high detection accuracy.The method enhances the diagnostic capability of earth pressure cell measurements and improves structural safety monitor-ing.关键词
土压力计/异常检验/频域分解/相关性分析/孤立森林算法Key words
earth pressure cell/anomaly detection/frequency domain decomposition/correlation analysis/isolation forest分类
建筑与水利引用本文复制引用
刘轲,金鑫鑫,卢正超,聂鼎,商玉洁..基于频域分解和多测点联合的土压力计测值异常检验方法[J].中国水利水电科学研究院学报（中英文）,2026,24(3):369-377,9.
