混凝土重力坝变形监测数据的相关性分析  

Correlation Analysis of Dam Deformation Monitoring Data for Concrete Gravity Dam

作　　者：王瑄 姚远 陶丛丛 储冬冬 徐波 WANG Xuan;YAO Yuan;TAO Cong-cong;CHU Dong-dong;XU Bo(College of Hydraulic Science and Engineering,Yangzhou University,Yangzhou 225009,Jiangsu Province,China;NARI Group Gorporation,Nanjing 211000,Jiangsu Province,China;Jiangsu Water Conservancy Science Research Institute,Nanjing 210017,Jiangsu Province,China)

机构地区：[1]扬州大学水利科学与工程学院,江苏扬州225009 [2]南瑞集团有限公司,江苏南京211000 [3]江苏省水利科学研究院,江苏南京210017

出　　处：《中国农村水利水电》2024年第8期180-187,193,共9页China Rural Water and Hydropower

基　　金：国家自然科学基金项目(52079120)。

摘　　要：混凝土重力坝的变形量可直观反映大坝的综合运行性态,而变形监测数据是坝体变形的直接体现。因此,从时间和空间上掌握坝体变形监测数据之间的规律与相关性,对于大坝后续的异常检测及安全评价等研究具有重要意义。结合大坝变形监测数据实例,分析了环境因素对位移影响存在的滞后性,利用时空相似指数对大坝不同测点间位移构建了综合相似度指标,运用皮尔逊相关系数、斯皮尔曼等级相关系数和最大信息系数法分析了环境因素与测点位移的相关性以及各测点之间变形位移的相关性,为后续建立健康服役诊断模型等更深层次的研究奠定了坚实的基础。The deformation of concrete gravity dams can directly reflect the comprehensive operational state of dams,and the deformation monitoring data is the direct reflection of the dam deformation.Therefore,it is of great significance to grasp the rules and correlation between the dam deformation monitoring data in time and space for the subsequent research on anomaly detection and safety evaluation of dams.Combining with the deformation monitoring data examples,the lag in the effect of environmental factors on displacement is analyzed.Using the spatio-temporal similarity index,the comprehensive similarity index is constructed for the displacements between different monitoring points of the dam.The correlation between the displacement of different monitoring points and the correlation between environmental factors and displacement of monitoring points are analyzed by using Pearson′s correlation coefficient method,Spearman′s correlation coefficient method and Maximum Information Coefficient method.It lays a solid foundation for the subsequent research such as the establishment of healthy service diagnostic models.

关 键 词：大坝安全监测 相关性分析 时空相似指数 环境因素滞后校正 

分 类 号：TV698.1[水利工程—水利水电工程]