Deployment of FBG Sensors in Static Load Test of Diaphragm Wall – Field Test
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21720%2F20%3A00344422" target="_blank" >RIV/68407700:21720/20:00344422 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.5593/sgem2020/1.1/s02.056" target="_blank" >https://doi.org/10.5593/sgem2020/1.1/s02.056</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.5593/sgem2020/1.1/s02.056" target="_blank" >10.5593/sgem2020/1.1/s02.056</a>
Alternative languages
Result language
angličtina
Original language name
Deployment of FBG Sensors in Static Load Test of Diaphragm Wall – Field Test
Original language description
Fiber Bragg Grating (FBG) sensors are used worldwide in structural health monitoring as a highly effective strain sensing method. Compared to traditional strain sensing methods in geotechnics, such as measurement by extensometers, deformeters, or strain gauges, FBG technology is beneficial in many issues, such as small dimensions of the sensor, easy and fast installation, long-term stability, immunity to electromagnetic interference or possibility of having dozens of sensing points on a single measuring cable. One part of the D3 highway construction, connecting the capital city Prague with southern Bohemia, is Pohůrka tunnel in the suburbs of the city of České Budějovice. With regard to the geomorphology of the locality and directional and elevational design of the highway, the tunnel is designed to be cut and cover. It has two 995.5 m long tubes, guided in two opposing curves. Due to complicated geotechnical and hydrogeological conditions in combination with demanding construction, static load tests of selected individual lamellae of diaphragm walls designed as retaining, loadbearing as well as sealing structures of the cut and cover tunnel were planned. Two test lamellae were instrumented for the purpose of static load test by resistance strain gauges, as well as FBG sensors. After the load tests, the results from both measurement technologies were compared to each other. The differences between the values obtained from FBG sensors and the values from strain gauges are acceptable enough; both measuring technologies proved their suitability in static load test of a diaphragm walls.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20201 - Electrical and electronic engineering
Result continuities
Project
<a href="/en/project/LO1605" target="_blank" >LO1605: University Centre for Energy Efficient Buildings – Sustainability Phase</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
20th International Multidisciplinary Scientific Geoconference SGEM 2020
ISBN
978-619-7603-04-0
ISSN
1314-2704
e-ISSN
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Number of pages
8
Pages from-to
449-456
Publisher name
International Multidisciplinary Scientific GeoConference SGEM
Place of publication
Sofia
Event location
Albena
Event date
Aug 16, 2020
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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