Fiber bragg grating monitoring device and monitoring method for differential settlement of road subgrade

The invention discloses a fiber bragg grating monitoring device and method for differential settlement of a road subgrade, and the method comprises the steps: drilling a key part of the subgrade in the construction or maintenance process of the subgrade, and assembling a pre-buried protective housin...

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Hauptverfasser:	GUO YONGXING, ZHOU FUBAO, HU ZHONGCHUN, KANG RONGXUE, ZHAI CHUANWEI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	GYROSCOPIC INSTRUMENTS MEASURING MEASURING ANGLES MEASURING AREAS MEASURING DISTANCES, LEVELS OR BEARINGS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS MEASURING QUANTITY OF HEAT MEASURING TEMPERATURE NAVIGATION PHOTOGRAMMETRY OR VIDEOGRAMMETRY PHYSICS SURVEYING TESTING THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
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creator	GUO YONGXING ZHOU FUBAO HU ZHONGCHUN KANG RONGXUE ZHAI CHUANWEI
description	The invention discloses a fiber bragg grating monitoring device and method for differential settlement of a road subgrade, and the method comprises the steps: drilling a key part of the subgrade in the construction or maintenance process of the subgrade, and assembling a pre-buried protective housing, a plurality of fiber bragg grating strain sensors, a strain mounting assembly, a fiber bragg grating temperature sensor, a plurality of fiber bragg grating tilt angle sensors, a tilt angle mounting assembly and a series circuit are mounted in a pre-embedded protective shell, the assembled functional accessories are inserted into drilled holes, and then grouting treatment is performed; the fiber bragg grating strain sensor can sense roadbed settlement change in real time; the fiber grating temperature sensors connected in series are used for temperature compensation and can monitor the temperature change at the pre-buried part; the fiber bragg grating tilt angle sensor monitors the change of the tilt angle of the
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the fiber bragg grating strain sensor can sense roadbed settlement change in real time; the fiber grating temperature sensors connected in series are used for temperature compensation and can monitor the temperature change at the pre-buried part; the fiber bragg grating tilt angle sensor monitors the change of the tilt angle of the</abstract><oa>free_for_read</oa></addata></record>
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language	chi ; eng
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subjects	GYROSCOPIC INSTRUMENTS MEASURING MEASURING ANGLES MEASURING AREAS MEASURING DISTANCES, LEVELS OR BEARINGS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS MEASURING QUANTITY OF HEAT MEASURING TEMPERATURE NAVIGATION PHOTOGRAMMETRY OR VIDEOGRAMMETRY PHYSICS SURVEYING TESTING THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
title	Fiber bragg grating monitoring device and monitoring method for differential settlement of road subgrade
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