Tunnel structure monitoring system based on distributed long-gauge-length fiber grating

The utility model discloses a tunnel structure monitoring system based on distributed long-gauge-length fiber grating. The system is comprehensively provided with distributed long-gauge-length fiber grating sensors along the axial direction and the cross section of a tunnel in a monitoring range, an...

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Bibliographische Detailangaben
Hauptverfasser:	XU HUIJIE, SONG GUOXIA, WANG JIANI, TAO JIN, LI JINTAO
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS MEASURING MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR PHYSICS TARIFF METERING APPARATUS TESTING
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Beschreibung
Zusammenfassung:	The utility model discloses a tunnel structure monitoring system based on distributed long-gauge-length fiber grating. The system is comprehensively provided with distributed long-gauge-length fiber grating sensors along the axial direction and the cross section of a tunnel in a monitoring range, and vertical settlement of the tunnel and changing conditions of joints of various rings of a shield tunnel are monitored. The tunnel structure monitoring system is applicable to life-cycle monitoring in a construction period and a service period of the tunnel structure, and dynamic and real-time monitoring of vertical settlement, clearance convergence, joint deformation, segment internal force, and strain etc. of the tunnel structure can be realized.