超长引水隧洞安全监测系统组网研究  

Research on networking of safety monitoring system for super-long diversion tunnel

作　　者：张俊杰 张铎[3] 周楷 周克明 ZHANG Junjie;ZHANG Duo;ZHOU Kai;ZHOU Keming(Research Center on Hydrology and Water Resources Monitoring, the Ministry of Water Resources, Nanjing 210012, China;Nanjing Automation Institute of Water Conservancy and Hydrology, the Ministry of Water Resources, Nanjing 210012, China;Liaoning Province Water Resources Management Group, Shenyang 110000, China;Nanjing Hydraulic Research Institute, Nanjing 210024, China)

机构地区：[1]水利部水文水资源监控工程技术研究中心,江苏南京210012 [2]水利部南京水利水文自动化研究所,江苏南京210012 [3]辽宁省水资源管理集团有限责任公司,辽宁沈阳110000 [4]南京水利科学研究院,江苏南京210024

出　　处：《水利信息化》2019年第5期39-44,共6页Water Resources Informatization

基　　金：国家重点研发计划（2016YFC0401809）

摘　　要：水工隧洞建设逐渐向长距离、大断面、大埋深方向发展,基于电测法的传统安全监测系统组网方式面临着信号传输衰减,高水头下绝缘保护难度大,工程成本高等难题,因此不再适用于此类隧洞。结合国内某超长引水隧洞安全监测系统的实际施工,通过:1)选用光纤光栅传感器;2)监测断面内传感器采用串联或并联组网;3)监测断面间通过G.652D光纤连接组网;4)各数据采集站通过接入主干公网或GPRS无线传输2种方式进行组网,提出一套完整的超长引水隧洞安全监测系统组网方案,并通过相关实验与实际工程运用,证明该组网方案在保证监测数据长距离可靠传输的同时,减少工程成本,为引水隧洞安全监测工作提供参考。The construction of hydraulic tunnels gradually develops towards long distance, large section and deep burial. The traditional safety monitoring system based on electrical measurement method is faced with the problems of signal transmission attenuation, difficulty of insulation protection under high waterhead and high engineering cost, so it is no longer suitable for this kind of tunnel. In this paper, combined with the actual construction of a domestic super- long diversion tunnel safety monitoring system, through: 1) selecting Fiber Bragg Grating sensors;2) connecting sensors in monitoring section by series and parallel;3) connecting monitoring sections through G.652D optical fiber;4) connecting data acquisition stations through the main public network or GPRS wireless transmission,it forms a complete network scheme of safety monitoring system for super-long diversion tunnel.Through experiments and practical engineering application, it is proved that the network scheme can not only guarantee the reliable transmission of monitoring data over a long distance, but also reduce the engineering cost. It provides reference for safety monitoring of diversion tunnel.

关 键 词：引水隧洞 长距离 安全监测 光纤光栅 通信组网 

分 类 号：TV672[水利工程—水利水电工程]