| CPC E21D 11/003 (2013.01) [E21F 17/185 (2013.01)] | 9 Claims |
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1. An integrated manufacturing system for a small-deformation self-diagnosis shield segment, comprising an inclination monitoring module, a displacement monitoring module, a strain monitoring module and a pressure monitoring module; wherein each monitoring module is configured as an optical fiber grating sensor self-provided with temperature compensation; two optical fibers are led out of each monitoring module, and both enter a pre-cast box to form a U-shaped optical cable bundle; after the manufacture of the segment is completed, a joint of each optical cable is detected, and the optical cables which have been detected to be intact are welded in series from end to end to form a complete U-shaped optical cable bundle;
the wavelengths of all the optical fiber grating sensors are arranged at intervals, and the wavelength difference between each two sensors is greater than 3 nm; in practical monitoring, data can be collected at any head of the U-shaped optical cable bundle to obtain data of all the monitoring modules; when the structure changes, the wavelength drift of the optical fiber grating is caused, and a specific monitoring module is determined according to a wavelength range to process data and upload same to a database to obtain change data reflecting the inclination, displacement, strain and water and concrete pressure of the shield tunnel; the data processing center further comprises an angle, displacement, strain and water and concrete pressure prompt unit for determining whether the changing situation data exceeds a change threshold value, and in the case where the determined result is yes, a prompt that there is a danger is provided.
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