New drainage tunnel of the tunnel Vi?ňové _ design and excavation

Building up Efficient and Sustainable Transport Infrastructure 2017

Jurík, Igor^1 ; Grega, Ladislav^1 ; Valko, Jozef^1 ; Janega, Peter^2

URANPRES, Spol. S R.o., apajevova 29, Preov

080 01, Slovakia^1

KAMI PROFIT, S.r.o., Príjazdná 7/A, Bratislava

831 07, Slovakia^2

关键词: Drainage pipes;    Hydrogeological;    Pilot tunnels;    Slovakia;    Tunnel tubes;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/236/1/012086/pdf
DOI  :  10.1088/1757-899X/236/1/012086

来源: IOP

【 摘 要 】

The actual pilot tunnel dated to the period of geological and hydrogeological survey, is designed as a part of the tunnel Viové, which is located at the section of the D1 motorway Lietavská Lúka - Viové - Dubná Skala in Slovakia. Drainage tunnel will be used for the drainage of the main tunnel tubes, where the maximum inflow from the eastern portal is greater than 250 l.s-1. Overlapping of the initial pilot tunnel with the profile of the southern tunnel tube led to the demolition of the portal sections of the pilot tunnel during the excavation of main tunnel tubes. These sections were replaced by new drainage tunnels, with the lengths of 288.0 meters from west portal and 538.0 meters from eastern portal, to ensure access from both portals. The new drainage tunnel is excavated under the level of the two main tunnel tubes. Drainage pipes with a diameter of 250 mm will be installed from cleaning niches in the main tunnel tubes to the new drainage tunnel.