Displacements in the exploratory tunnel ahead of the excavation face of Šentvid tunnelKlopčič, Jure (Avtor) Logar, Janko (Avtor) Ambrožič, Tomaž (Avtor) Štimulak, Andrej (Avtor) Marjetič, Aleš (Avtor) Bogatin, Sonja (Avtor) Majes, Bojan (Avtor) , Fakulteta za gradbeništvo, prometno inženirstvo in arhitekturo Univerze v Mariboru (Lastnik avtorskih pravic) tunnelsexploratory tunnelgeodetic displacement measurementspre-face displacementsFitting the displacement function to the measured displacements enables the assessment of the stabilization process of the observed cross section and the determination of its normal behaviour. The displacement function consists of three parts. Whilst the third part has been successfully applied for several times and thus proven to be very well defined, the first two parts were defined only on the basis of numerical simulations. To overcome this deficiency and to obtain the necessary coefficients of the pre-face part of the displacement function, the 3D displacement measurements ahead of the face due to tunneling should be performed. Such measurements were performed in the exploratory tunnel of the Šentvid tunnel during the excavation of the main tunnel. This paper presents the Šentvid tunnel project, the method of the 3D displacement measurements, the results of these measurements and their interpretation according to the geological structure of the site with an emphasis on items important for the coefficients of the displacement function.20062018-05-17 11:05:24Znanstveno delo70507ISSN: 1854-0171UDK: 624.12/.14OceCobissID: 215987712COBISS_ID: 3283553ISSN pri članku: 1854-0171NUK URN: URN:SI:UM:DK:RBRSIJLVslFakulteta za gradbeništvo, prometno inženirstvo in arhitekturo Univerze v Mariboru