光学技术, 2014, 40 (4): 357, 网络出版: 2014-06-30   

基于光纤光栅传感网的土石坝监测系统

Earth-rock dam monitoring system based on fiber grating sensing network
作者单位
昆明理工大学 信息工程与自动化院, 云南 昆明 650504
摘要
土石坝在使用过程中由于受荷载的长期效应、材料老化和环境侵蚀等自然因素的影响, 大坝会受到损伤。为了有效地监测土石坝的健康状况和对其发生的结构损伤进行识别以及进一步对土石坝寿命进行预测, 建立完善的土石坝结构监测系统是十分必要的。依据物联网分层思想, 采用全光纤传输技术, 通过以FBG传感器作为检测单元实现对土石坝裂缝、渗压等重要数据的采集、监测和处理, 开发了基于光纤光栅传感网的土石坝监测系统。实际应用表明, 该系统可实时呈现土石坝运行状况的关键参数信息, 为工程除险加固和对大坝整体使用情况的了解起到了辅助作用。
Abstract
During the use of the earth-rock dam, it will be damaged because of the long-term effect of the load, the material aging, environmental erosion and other factors. In order to effectively monitor the earth rock dam health status and identify the structural damage, and further to predict the life of earth rock dam, it is necessary to establish the earth-rock dam monitoring system. In view of the hierarchical structure of the things of internet, an earth dam monitoring system is developed. It uses a transmission technology of full optical fiber and based on Fiber Bragg Grating sensing network, which uses the FBG sensor as the detecting unit. It can collect and process the important data of the earth-rock dam, like cracks and pressure. Practical application shows that the system can show the key parameter information of the condition of the earth-rock dam and play a supporting role in the projecting of earth-rock dam reinforcement and the dam understanding of the whole situation.

张丰伟, 陈小勇, 宋维彬, 关袁玉, 李英娜, 李川. 基于光纤光栅传感网的土石坝监测系统[J]. 光学技术, 2014, 40(4): 357. ZHANG Fengwei, CHEN Xiaoyong, Song Weibin, Guan Yuanyu, LI Yingna, LI Chuan. Earth-rock dam monitoring system based on fiber grating sensing network[J]. Optical Technique, 2014, 40(4): 357.

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