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Description
| - Irreplaceability of geotechnical monitoring for ensure the safety of construction and opera-tion of underground structures is obvious. One of the important information, which geotechnical moni-toring provide is progress of stress changes around the own excavated space. Measurements of contact stress in the selected profiles were performed also during construction of drainage gallery under the Strahov tunnels. Strahov tunnel, which was opened in 1997, consists of two separate tunnel tubes with a central rock pillar. Almost immediately after its commissioning were observed leaks in waterproofing of tunnel lining. Most of leaks are observed in the southern parts of the tunnel tubes. Especially in the winter seasons, this condition has a negative impact on traffic safety in the tunnel. As the most suitable solution to this problem was chosen construction of excavated drainage tunnel, which should provide adequate drainage of the surrounding rock mass. Construction of drainage gallery was carried out in a very complex geological environment of Prague shale. Therefore it was decided to verify the expected values of load of tunnel lining obtained by numerical modelling with the values measured %22in situ%22. Con-tact stress measurements were carried out in two measurement profiles, in difficult geological condi-tions. In total there was installed 20 meters of contact stress (hydraulic pressure cells). Automated measurements were carried out continuously for every 1 hour. This paper presents some measured values of stress and temperature on the rock - tunnel lining contact and their comparison with the re-sults of numerical modeling.
- Irreplaceability of geotechnical monitoring for ensure the safety of construction and opera-tion of underground structures is obvious. One of the important information, which geotechnical moni-toring provide is progress of stress changes around the own excavated space. Measurements of contact stress in the selected profiles were performed also during construction of drainage gallery under the Strahov tunnels. Strahov tunnel, which was opened in 1997, consists of two separate tunnel tubes with a central rock pillar. Almost immediately after its commissioning were observed leaks in waterproofing of tunnel lining. Most of leaks are observed in the southern parts of the tunnel tubes. Especially in the winter seasons, this condition has a negative impact on traffic safety in the tunnel. As the most suitable solution to this problem was chosen construction of excavated drainage tunnel, which should provide adequate drainage of the surrounding rock mass. Construction of drainage gallery was carried out in a very complex geological environment of Prague shale. Therefore it was decided to verify the expected values of load of tunnel lining obtained by numerical modelling with the values measured %22in situ%22. Con-tact stress measurements were carried out in two measurement profiles, in difficult geological condi-tions. In total there was installed 20 meters of contact stress (hydraulic pressure cells). Automated measurements were carried out continuously for every 1 hour. This paper presents some measured values of stress and temperature on the rock - tunnel lining contact and their comparison with the re-sults of numerical modeling. (en)
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Title
| - Tunnel Lining Loading Measurement of Drainage Gallery of Strahov Tunnel in Prague
- Tunnel Lining Loading Measurement of Drainage Gallery of Strahov Tunnel in Prague (en)
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skos:prefLabel
| - Tunnel Lining Loading Measurement of Drainage Gallery of Strahov Tunnel in Prague
- Tunnel Lining Loading Measurement of Drainage Gallery of Strahov Tunnel in Prague (en)
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skos:notation
| - RIV/68407700:21110/13:00207811!RIV14-MPO-21110___
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http://linked.open...avai/predkladatel
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http://linked.open...avai/riv/aktivita
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http://linked.open...avai/riv/aktivity
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http://linked.open...vai/riv/dodaniDat
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http://linked.open...aciTvurceVysledku
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http://linked.open.../riv/druhVysledku
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http://linked.open...iv/duvernostUdaju
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http://linked.open...titaPredkladatele
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http://linked.open...dnocenehoVysledku
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http://linked.open...ai/riv/idVysledku
| - RIV/68407700:21110/13:00207811
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - tunnel lining; contact stress measurement; drainage gallery (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...ontrolniKodProRIV
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http://linked.open...v/mistoKonaniAkce
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http://linked.open...i/riv/mistoVydani
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http://linked.open...i/riv/nazevZdroje
| - Podzemní stavby 2013 - Proceedings
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http://linked.open...in/vavai/riv/obor
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http://linked.open...ichTvurcuVysledku
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http://linked.open...cetTvurcuVysledku
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http://linked.open...vavai/riv/projekt
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http://linked.open...UplatneniVysledku
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http://linked.open...iv/tvurceVysledku
| - Pacovský, Jaroslav
- Kaisr, Zbyněk
- Chabr, J.
- Rieger, R.
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http://linked.open...vavai/riv/typAkce
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http://linked.open.../riv/zahajeniAkce
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number of pages
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http://purl.org/ne...btex#hasPublisher
| - Czech Tunnelling Association ITA-AITES
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https://schema.org/isbn
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http://localhost/t...ganizacniJednotka
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