分布式光纤管道监测技术在长距离输水工程中的应用  

Application of distributed optical fiber pipeline monitoring technology in long-distance water conveyance project

作　　者：张伟 武齐永 张忠霞 田永杰 杨垚 徐小辉 马骏 李骏 ZHANG Wei;WU Qiyong;ZHANG Zhongxia;TIAN Yongjie;YANG Yao;XU Xiaohui;MA Jun;LI Jun(Beijing Special Engineering Design Institute,Beijing 100028,China;The 21st Letter Box of Urumuqi Xinjiang,Xinjiang 830000,China)

机构地区：[1]北京特种工程设计研究院,北京100028 [2]新疆乌鲁木齐市21信箱,新疆830000

出　　处：《给水排水》2022年第6期124-129,共6页Water & Wastewater Engineering

摘　　要：我国新疆若羌地区某输水工程输水距离114.2 km,输水规模为6000 m^(3)/d,向戈壁深处2万~3万工作人员提供生活用水。管道沿途地质情况复杂,具有强腐蚀性和强溶陷性,管道漏失易引发土壤塌陷,导致管道断裂。为减轻巡查工作,防止人为破坏管道,该工程采用分布式光纤管道监测系统进行实时监测,对管道进行检漏和安防保护。安装完毕后对监测系统进行了模拟检验,检验结果表明,该系统对管道漏失、外力入侵等具有监测距离长、响应及时、定位准确、误报率低等特点。A long-distance water conveyance(114.2 km)project in Xinjiang Ruoqiang region which carrying capacity was 6000 m^(3)/d would provide domestic water for 20~30 thousand staff living in gobi desert.The loacal geological condition is complex,and the soil is strong corrosive and collapsible,once the pipe leaks water into the soil,the soil will sink,which will cause pipe fracture.In order to decrease the workload of maintenance and prevent the pipe from being destroyed by people,distributed optical fiber vibration monitoring system was adopted to monitor the water pipeline in real time and provide leakage pre-warning and security protection.Test of simulated accident was carried out after installation,the results of the test showed that this system has the characteristics of long monitoring distance,short response time,accurate positioning and low false alarm rate in terms of monotoring the pipeline leakage and external force invasion.

关 键 词：分布式光纤 管道检漏 管道安防 长距离输水工程 

分 类 号：TU992[建筑科学—市政工程]