摘要
根据复杂遮挡环境水闸变形监测受多路径效应影响较大以及上下游水位和季节温度影响产生缓慢位移的特性,采用载噪比约束的随机模型、缓慢位移约束观测值抗差、半天球模型多路径改正方法得到动态时段坐标序列解算结果,并对动态时序结果进行基于平滑先验分析的时段位移提取及精细化处理,得到时段解,用于对水闸的变形进行实时、连续的长期监测。为验证上述方法的有效性,通过设计实验对水闸半遮挡复杂环境的变形监测进行了验证。结果表明:该方法最终可实现精度约为1 mm级的高精度水闸位移监测。
Based on the severe impact of multipath effects on the deformation monitoring of water gates in complex occlusion environments,as well as the slow displacement characteristics caused by the influence of upstream and downstream water levels and seasonal temperatures,a random model with carrier to noise ratio constraints,robust observation values with slow displacement constraints,and a multi path correction method with a hemispherical model were used to obtain the dynamic time series coordinate sequence solution results.The dynamic time series results were refined by extracting time period displacement based on smooth prior analysis,obtain the time interval solution,used for real time and continuous long term monitoring of deformation and displacement of water gates.To verify the effectiveness of the above methods,deformation monitoring in a complex environment with semi occlusion of the sluice was verified through experimental design.The results show that this method can eventually achieve high-precision water gate displacement monitoring with an accuracy of approximately 1 mm.
作者
张红艳
张孟颖
赵峰
傅捷
李辰霄
杨志翔
ZHANG Hongyan;ZHANG Mengying;ZHAO Feng;FU Jie;LI Chenxiao;YANG Zhixiang(Management Division of Qinhuai River Hydraulic Engineering of Jiangsu Province,Nanjing 210000,China;Jiangsu Surveying and Design Institute of Water Resources Co.,Ltd.,Yangzhou 225127,China;Nanjing Aspiring Space-time Science and Technology Co.,Ltd.,Nanjing 210000,China)
出处
《江苏水利》
2025年第9期30-36,共7页
Jiangsu Water Resources
基金
江苏省水利科技项目(2023037)。
