Barcelona Metro Service Tunnel Collapses - tunnelbuilder.com News Translate this website Login Home Archive Product Promotion News Feed Buyers Guide Jobs Sales English English To make this website work better ensure that blocked cookies are allowed. Register Sign Up Contact Show Details News Barcelona Metro Service Tunnel Collapses 19/02/2005 Barcelona Metro Service Tunnel CollapsesOn 27th January a major collapse occurred on a 233 m-long service tunnel under NATM construction as part of line 5 extension to Spain's Barcelona metro, resulting in a 25 m-diameter, 32 m-deep sinkhole. A sandstone fault had been encountered at the face two days earlier, causing a fall of about 1,000 cu m of ground. Concrete pouring was attempted to arrest the situation, but this was in vain. Water pressure in the fault fractured the tunnel sidewall and triggered the collapse, bringing down a surface building. Some 2,000 cu m of concrete was then poured into the void in an attempt to stabilize the area, but a second hole appeared on 3rd February. It has now been decided to seal off and fill up the service tunnel excavation, a job that will take three weeks and 18,000 cu m of concrete. The three buildings nearest to the two sinkholes will have to be demolished. Construction on Line 5 will carry on using NATM, but the frequency of test drilling along the alignment will be increased to avoid a recurrence. Click es/22. Visit www10.gencat.net/gencat/AppJava/cat/esp/carmel/50201especialcarmel.jsp 07/05. Click to enlarge Like 0 Tweet Share Share 0 http://tunnelbuilder.com/News/Barcelona-Metro-Service-Tunnel-Collapses.aspx[03/04/2016 10:30:45 a. m.] Active Tenders 04.04.2016 Italy 05.04.2016 Sweden 08.04.2016 Norway 08.04.2016 Norway 14.04.2016 Netherlands 14.04.2016 France 18.04.2016 Philippines 19.04.2016 Montenegro 19.04.2016 Norway 20.04.2016 Austria 21.04.2016 Norway 22.04.2016 Switzerland 25.04.2016 Norway 26.04.2016 Italy 26.04.2016 Norway 29.04.2016 Norway 29.04.2016 Switzerland Barcelona Metro Service Tunnel Collapses - tunnelbuilder.com News Copyright tunnelbuilder 1999-2016 Privacy Journalists Accessibility 01.05.2016 Norway 02.05.2016 Italy 02.05.2016 Italy 04.05.2016 Italy 04.05.2016 Germany 09.05.2016 Italy 09.05.2016 Switzerland 09.05.2016 Switzerland 11.05.2016 France 12.05.2016 United Kingdom 20.05.2016 Sweden 27.05.2016 Switzerland 27.05.2016 Switzerland 08.06.2016 Sweden 31.08.2016 Denmark 19.09.2016 Sweden Web Design and SEO Dreamscape Design Ltd Terms & Conditions Site Map http://tunnelbuilder.com/News/Barcelona-Metro-Service-Tunnel-Collapses.aspx[03/04/2016 10:30:45 a. m.]
