The Real-Time Monitoring System for Metro Shield Tunnels: From Research to Application

Jinfeng Zhang 1 Wangsheng Liu 1 Ming Zhao 1
1 Tongji University
Abstract : To the tunnel structure in soft soil foundation, damages are likely caused by large deformation, thus it is reasonable to measure deformation rather than to measure force or stress. Although there are many ways to obtain deformation information, measuring inclination of segments is one of the most effective ways, and it is convenient to derive the deformation from the inclination data. The method to obtain the variation of tunnelÕs diameter, the opening length of longitudinal connecting seams, the concrete stress of bolt and certain joint is studied in this paper by making use of the inclination variation of lining segments. This paper outlines a real-time monitoring system based on the internet of things which will be applied to an interval shield tunnel of Shanghai metro line 12 this year.
Keywords : Wireless and smart sensors Monitoring Civil engineering SHM applications
Type de document :
Communication dans un congrès
Le Cam, Vincent and Mevel, Laurent and Schoefs, Franck. EWSHM - 7th European Workshop on Structural Health Monitoring, Jul 2014, Nantes, France. 2014
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Jinfeng Zhang, Wangsheng Liu, Ming Zhao. The Real-Time Monitoring System for Metro Shield Tunnels: From Research to Application. Le Cam, Vincent and Mevel, Laurent and Schoefs, Franck. EWSHM - 7th European Workshop on Structural Health Monitoring, Jul 2014, Nantes, France. 2014. 〈hal-01021238〉

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