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Some tunnel construction sequences in carboniferous soft rocks analysed by rheological modelDervarič, Evgen ; Likar, Jakob ; Merhar, BraneThe usage of underground structures is increasing which is the reason that in many cases construction takes place in heavy geological geotechnical conditions. Due to this, the appropriate ... constitutive equations describing the time dependent reactions of the rocks with signification rheological properties, is necessarily to be applied. The excavation of the tunnel Trojanehad run through distinctive rheological rocks with variable geotechnical properties. The construction process was modelled with PLAXIS 3D tunnel program. Input parameters were determined by 3D back analysis with Soft-Soil-Creep (SSC) constitutive material model, which takes into account rheological phenomena. 3D development of stress-strain fields during the tunnel excavation was performed to show major stress-strain changes in the surrounding rocks and support elements. Analyses with SSC material model was also made to show how the excavation of the top heading influences on development of deformations ahead of excavation. The calculations showed that during excavation of the top heading substantial deformations are developed ahead of the top heading. Good agreement between measurement and calculated movements were obtained.Vir: RMZ - Materials and geoenvironment : periodical for mining, metallurgy and geology = RMZ - Materiali in geookolje : revija za rudarstvo, metalurgijo in geologijo. - ISSN 1408-7073 (Letn. 51, št. 4, dec. 2004, str. 2109-2115)Vrsta gradiva - članek, sestavni delLeto - 2004Jezik - angleškiCOBISS.SI-ID - 130011
Avtor
Dervarič, Evgen |
Likar, Jakob |
Merhar, Brane
Teme
gradbeništvo |
tuneli |
geologija |
geotehnologija |
tla |
reološke lastnosti |
Trojane |
Trojane
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vir: RMZ - Materials and geoenvironment : periodical for mining, metallurgy and geology = RMZ - Materiali in geookolje : revija za rudarstvo, metalurgijo in geologijo. - ISSN 1408-7073 (Letn. 51, št. 4, dec. 2004, str. 2109-2115)
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
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Dervarič, Evgen | 13572 |
Likar, Jakob | 09644 |
Merhar, Brane | 20117 |
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