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Statements

Subject Item
n2:RIV%2F68407700%3A21110%2F12%3A00201585%21RIV13-TA0-21110___
rdf:type
n14:Vysledek skos:Concept
dcterms:description
The Prackovice tunnel is located on the D8 highway section between towns Lovosice and Řehlovice. The tunnel has two unidirectional tubes 270 m and 260 m long, each tube has two lanes. The tunnel was constructed in geology with basaltic bodies together with thick tuff layers and occurrences of marlstone. From the petrological point of view, a relatively wide range of rock types was represented. The major part of the slopes at portal areas was covered with debris, the character of the debris was mostly rocky and locally even bouldery with loamy-sandy filling material. The rock mass is significantly disturbed by previous chamber blasting. In 2005 a pilot adit was realised. The tunnel excavation started from Prague's portal in 2008 and was completed in 2009. The tunnel excavation was executed without any significant problems. In December 2008 higher movement of Prague's portal was recorded which was stabilised by concrete block with inclined micropiles. The paper is focused on back analysis of the Prague's portal, the modelling was realised using the finite element method (FEM), the results of modelling are compared to the results of realised monitoring. Adopted additional support measures of the portal are discussed as well. The Prackovice tunnel is located on the D8 highway section between towns Lovosice and Řehlovice. The tunnel has two unidirectional tubes 270 m and 260 m long, each tube has two lanes. The tunnel was constructed in geology with basaltic bodies together with thick tuff layers and occurrences of marlstone. From the petrological point of view, a relatively wide range of rock types was represented. The major part of the slopes at portal areas was covered with debris, the character of the debris was mostly rocky and locally even bouldery with loamy-sandy filling material. The rock mass is significantly disturbed by previous chamber blasting. In 2005 a pilot adit was realised. The tunnel excavation started from Prague's portal in 2008 and was completed in 2009. The tunnel excavation was executed without any significant problems. In December 2008 higher movement of Prague's portal was recorded which was stabilised by concrete block with inclined micropiles. The paper is focused on back analysis of the Prague's portal, the modelling was realised using the finite element method (FEM), the results of modelling are compared to the results of realised monitoring. Adopted additional support measures of the portal are discussed as well.
dcterms:title
Stability Evaluation of the Prackovice Tunnel Portal Stability Evaluation of the Prackovice Tunnel Portal
skos:prefLabel
Stability Evaluation of the Prackovice Tunnel Portal Stability Evaluation of the Prackovice Tunnel Portal
skos:notation
RIV/68407700:21110/12:00201585!RIV13-TA0-21110___
n14:predkladatel
n17:orjk%3A21110
n3:aktivita
n15:P
n3:aktivity
P(TA01011816)
n3:dodaniDat
n10:2013
n3:domaciTvurceVysledku
n20:7715730
n3:druhVysledku
n6:D
n3:duvernostUdaju
n19:S
n3:entitaPredkladatele
n16:predkladatel
n3:idSjednocenehoVysledku
170816
n3:idVysledku
RIV/68407700:21110/12:00201585
n3:jazykVysledku
n9:eng
n3:klicovaSlova
tunnel; portal; NATM; monitoring; FEM
n3:klicoveSlovo
n8:monitoring n8:tunnel n8:NATM n8:portal n8:FEM
n3:kontrolniKodProRIV
[40AAE06786F1]
n3:mistoKonaniAkce
Budapest
n3:mistoVydani
Veszprém
n3:nazevZdroje
1st Eastern European Tunneling Conference
n3:obor
n22:JN
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
2
n3:projekt
n4:TA01011816
n3:rokUplatneniVysledku
n10:2012
n3:tvurceVysledku
Hilar, Matouš Srb, Martin
n3:typAkce
n12:WRD
n3:zahajeniAkce
2012-09-18+02:00
s:numberOfPages
8
n18:hasPublisher
OOK-Press Ltd.
n5:isbn
978-963-89638-0-2
n11:organizacniJednotka
21110