A Study on Distributed Measurement in Ship Lock Structural Construction Monitoring Using Fiber Optic Sensing Technologies

摘要：

　　In this paper, a distributed measurement was carried out for the ship lock structural construction monitoring using fiber optic sensing technologies, including optical time domain reflectometer(OTDR), Raman optical time domain reflectometer (ROTDR), Brillouin optical time-domain reflectometry(BOTDR) and Fiber Bragg G-rating (FBG).The hydration heat release process of concrete grouting in lock head floor of the ship lock was monitored and analyzed using OTDR and ROTDR, and the strain changes of lock head structure of the ship lock during the construction were also measured with BOTDR and FBG.Combining with the monitoring data, the stress-strain status changes in the interior of the lock head floor are comprehensively analyzed under the double actions of concrete hydration heat release and upper loading.The feasibility is validated for health monitoring on large hydraulic structure such as ship lock using the distributed optical fiber sensing technologies.The research results are of an important significance on design, construction and maintenance of the large hydraulic structure, and show the wide applications of the distributed optical fiber sensing technologies in infrastructural engineering health monitoring.

作者: Zhanpu Song Dan Zhang Bin Shi Wenbin Suo Haidong Fang

作者单位: School of Earth Sciences and Engineering,Nanjing University,Nanjing,China Jiangsu Provincial Communications Planning and Design Institute Co.,Ltd.,Nanjing,China

会议类型: 国际会议

会议名称: The 5th International Forum on Opto-electronic Sensor-based Monitoring in Geo-engineering (5th OSMG-2014)(第五届地质(岩土)工程光电传感监测国际论坛

会议地点: 南京

会议语种:英文

页码: 402-406

在线出版日期: 2014-10-12（万方平台首次上网日期，不代表论文的发表时间）