Fibre optic sensing in geotechnics - analysis and evaluation of measured data

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F16%3A00242567" target="_blank" >RIV/68407700:21110/16:00242567 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Fibre optic sensing in geotechnics - analysis and evaluation of measured data

Original language description

The paper presents the basic principles of the application of Brillouin Optical Time Domain Analysis (BOTDA) for distributed deformation measurement in geotechnics. It briefly describes the possible and tested utilization of this method (laboratory testing, on site applications) and in more details it deals with several issues and problems concerning data interpretation and evaluation. The first problem applies to unexpected increases of measured strain located at the points of attachment of measuring cable (local compression of measuring cables). The other problem deals also with unexpected increase of measured strain, particularly during borehole measurements. These measurements are provided with four measuring fibres at the same time, but the unexpected strain increases occur only at some of them. The measuring (analyzing) unit used for the basic BOTDA data evaluation enables more deep analysis of the measured data at each point of the measurement. This analysis was provided for selected measurement points of laboratory testing; the results are presented at the end of this paper.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

JM - Structural engineering

OECD FORD branch

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Project

<a href="/en/project/FR-TI3%2F609" target="_blank" >FR-TI3/609: Research and development of detection and monitoring of critical areas of geotechnical constructions mainly in underground structures, mining industry and other engineering constructions</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2016

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Sborník konference JUNIORSTAV 2016

ISBN

978-80-214-5311-1

ISSN

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e-ISSN

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Number of pages

8

Pages from-to

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Publisher name

Vysoké učení technické v Brně, Fakulta stavební

Place of publication

Brno

Event location

Brno

Event date

Jan 28, 2016

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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