大坝混凝土裂缝分布式光纤远程实时监测系统及工程应用

摘要

Out of the need for automatic and real-time monitoring of engineering cracks ,a distributed fiber optic concrete crack remote monitoring system for large dams based on Back Brillouin Scattering is constructed .The major work of con-structing a monitoring system is developing the monitoring software that works in high performance computers situated in a monitoring center .This system can provide system detection control ,instant monitoring data analysis and processing , monitoring result search and display ,as well as early warnings .According to the application of the system to the concrete crack monitoring in a large dam ,the various function features of the system are tested .This software is reliable and is worthy of further application in practical engineering .%分布式传感技术，在提供关于结构某种时空连续信息的同时，亦产生海量数据需存储和处理。出于工程自动化实时监测的需要，构建基于布里渊散射的大坝混凝土裂缝分布式光纤远程监测系统。系统构建的主要工作，是编制位于监控中心的高性能计算机上运行的监测软件，用于系统检测控制、监测数据即时存储、分析处理、查询显示及预警等功能。通过监测系统在某大坝工程混凝土裂缝监测中的应用，显示监测软件各种功能的特点，并表明软件系统的可靠性，可在工程中推广应用。