基于EMD-VMD-LSTM预测算法的高桩码头结构安全预警方法  

Safety warning method for high-pile wharf structures based on EMD-VMD-LSTM prediction algorithm

作　　者：栾宏 高刚刚 沈龙清 沈思程 苏静波[3] LUAN Hong;GAO Ganggang;SHEN Longqing;SHEN Sicheng;SU Jingbo(CCCC Shanghai Third Harbor Engineering Research Institute Co.,Ltd.,Shanghai 200032,China;No.3 Engineering Co.,Ltd.of CCCC Third Harbor Engineering Co.,Ltd.,Nanjing 210011,China;Hohai University,Nanjing 210024,China)

机构地区：[1]中交上海三航科学研究院有限公司,上海200032 [2]中交三航局第三工程有限公司,江苏南京210011 [3]河海大学,江苏南京210024

出　　处：《水运工程》2024年第7期35-41,共7页Port & Waterway Engineering

基　　金：国家自然科学基金项目(51679081)。

摘　　要：基于高桩码头健康监测数据,针对存在复杂环境因素影响监测精度问题,提出EMD-VMD-LSTM组合算法处理并预测高桩码头结构中的监测信息,通过对比分析验证在高桩码头结构现场监测大数据的预测预警分析中采用EMD-VMD-LSTM组合算法的可行性。同时,基于EMD-VMD-LSTM方法和固定预警阈值,提出动态预警阈值的确定方法,设计动静态预警结合的高桩码头结构预警方法,构建多指标、多层次的高桩码头结构安全预警体系以及相应的预警流程。研究成果可以提升高桩码头结构安全预警的准确性和效率,也可为类似工程结构的安全预警管理提供一定的参考。Based on the health monitoring data of the high-pile wharf,aiming at the problem that complex environmental factors affect the monitoring accuracy,this paper proposes an EMD-VMD-LSTM combined algorithm to process and predict the monitoring information in the high-pile wharf structure,and it verifies the feasibility of using the EMD-VMD-LSTM combined algorithm for prediction and early warning analysis of large-scale monitoring data in the field of high-pile wharf structure through comparative analysis.At the same time,based on the EMD-VMD-LSTM method and a fixed warning threshold,a method for determining dynamic warning thresholds is proposed,the early warning method combining static and dynamic warning is designed,and a multi-index and multi-level high-pile wharf structure safety warning system and corresponding warning process are constructed.The research results can improve the accuracy and efficiency of safety early warning of high-pile wharf structure,and also provide a certain reference for the safety early-warning management of similar engineering structures.

关 键 词：高桩码头 现场监测 组合预测算法 监测预警 安全性评估 

分 类 号：U656.1[交通运输工程—港口、海岸及近海工程]