2021
DOI: 10.1080/19475705.2021.1927859
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Research and application of an improved internal thrust force measurement system for rock and soil mass based on OFDR

Abstract: Internal thrust force of unstable rock and soil mass is an essential parameter for prediction of many geological hazard. Currently, fiber bragg grating (FBG) and optical time-domain reflectometer (OTDR) are widely used to measure internal stress of unstable rock and soil mass. However, these methods have disadvantages such as low spatial resolution and the paucity of distributed measurements. This paper develops a quasi-distributed thrust measurement system based on an optical frequency domain reflectometer (O… Show more

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Cited by 5 publications
(1 citation statement)
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“…Changshuo Liang [4] and team applied a phase -domain-interpolation-based resampling method, achieving a spatial reso lution of 0.15mm on a 302m single -mode optical fiber. Wang Pu [ 5 ] and colleagues utilized a cubic spline interpolation method, obtaining the spatial resolution of 20 cm on 500m fiber test.…”
Section: Introductionmentioning
confidence: 99%
“…Changshuo Liang [4] and team applied a phase -domain-interpolation-based resampling method, achieving a spatial reso lution of 0.15mm on a 302m single -mode optical fiber. Wang Pu [ 5 ] and colleagues utilized a cubic spline interpolation method, obtaining the spatial resolution of 20 cm on 500m fiber test.…”
Section: Introductionmentioning
confidence: 99%