施工期混凝土坝光纤测温疑点识别准则设计及应用

Design and Application of Recognition Criterion for Doubtful Concrete Dam Temperature Measurement Data of Distributed Optical Fiber during Construction Period

由于施工期混凝土温度测值的影响因素众多,分布式光纤测温系统的工作环境复杂多变,分布式光纤测温系统在获取海量大坝混凝土温度实时在线监测数据的同时,难免掺杂一定数量的疑点测值。借鉴大坝安全监控相关理论方法与研究成果,针对疑点测值识别问题,设计了5种常用的适合施工期大坝混凝土光纤测温测值疑点识别的准则。实践表明,这些识别准则有效。

The distributed optical fiber temperature measurement system can acquire huge amounts of real-time and online concrete dam temperature monitoring data, but it inevitably mix with a certain amount of doubtful measured values because the concrete temperature measurement during construction period is influenced by numerous factors and the operation environment of distributed optical fiber temperature measurement system is complicated. Aiming at the recognition problem of doubtful points, five recognition criterions for concrete dam temperature measuring value during construction period are designed based on dam safety monitoring theory, methods and research results. The practice shows that the recognition criterions are effective.