{"id":5203,"date":"2021-01-07T11:06:08","date_gmt":"2021-01-07T11:06:08","guid":{"rendered":"https:\/\/suri.templweb.com\/2021\/01\/07\/close-quarter-between-bypass-and-new-metro\/"},"modified":"2021-12-03T14:21:04","modified_gmt":"2021-12-03T14:21:04","slug":"close-quarter-between-bypass-and-new-metro","status":"publish","type":"post","link":"https:\/\/suri.templweb.com\/en\/close-quarter-between-bypass-and-new-metro\/","title":{"rendered":"Close quarter between the bypass and the new metro"},"content":{"rendered":"<address><span style=\"font-size:16px;\">Just west of Akalla, two of Stockholm\u2019s major infrastructure projects cross paths with each other. The new metro to Barkarby will be blasted into being five meters under the tunnels for the E4 Bypass Stockholm.<\/span><\/address>\n<p><span style=\"font-size:14px;\">The need to adapt to other underground or built-in facilities is common when building in Stockholm. Good dialogue and early cooperation are therefore important.<\/span><\/p>\n<p><span style=\"font-size:14px;\">When the Bypass tunnels at Akalla were blasted into being, the Swedish Transport Administration adapted the work to the upcoming metro:&nbsp;<br \/>\u201cWe have had good communication throughout, and the Swedish Transport Administration blasted the bottom of the tunnels very carefully on this particular route, so that the mountain remained as intact as possible. We will also make blasts with care right here. In part so as not to damage the mountain, but also to not even risk damaging anything in the Bypass tunnel, says the new metro project leader Martin Brantberger.&nbsp;<\/span><\/p>\n<p><span style=\"font-size:14px;\">That means shorter bursts that take the tunnel forward shorter distances at a time.&nbsp;&nbsp;<br \/>And we&#8217;re not blasting the entire volume of the tunnel. In parts of the roof we use a method called rock fracturing, which is done without explosives, damaging the rock less.&nbsp;<\/span><br \/>&nbsp;<\/p>\n<p><span style=\"font-size:14px;\"><span style=\"font-size:16px;\"><strong>A lot to be considered&nbsp;<\/strong><\/span><br \/>The distance between The Bypass and the Blue Line to Barkarby, the so-called rock overburden, is at least five meters, but it is enough, according to Martin Brantberger.&nbsp;<br \/>\u201cWe could go closer, too. What we&#8217;d have to do in that instance would be to reinforce the mountain further or replace the mountain with concrete altogether.\u201d&nbsp;&nbsp;<\/span><\/p>\n<p><span style=\"font-size:14px;\">The reason that the Blue Line does not go deeper under the Bypass is due to the fact that it should connect to Akalla station 500 meters away.&nbsp;<br \/>\u201cWe can&#8217;t have too steep tunnels, so this is as deep as we can go right here.\u201d&nbsp;<\/span><\/p>\n<p><span style=\"font-size:14px;\">Blasts this close to a tunnel where there is interior work going on right now means that there are also work environment aspects to be considered.&nbsp;&nbsp;<br \/>\u201cThose working on the Bypass are affected if we blast too close to them inside the mountain. The vibrations could make objects crash to the ground, thereby creating potential danger if someone is on a ladder or unprepared at the time. That&#8217;s why we have set blast schedules and good communication when we\u2019re as close as we get to each other.<\/span><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Just west of Akalla, two of Stockholm\u2019s major infrastructure projects cross paths with each other. The new metro to Barkarby will be blasted into being five meters under the tunnels for the E4 Bypass Stockholm. The need to adapt to other underground or built-in facilities is common when building in Stockholm. Good dialogue and early [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":6142,"comment_status":"closed","ping_status":"open","sticky":false,"template":"templates\/template-press-news.php","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[],"tags":[],"class_list":["post-5203","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Close quarter between the bypass and the new metro<\/title>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Close quarter between the bypass and the new metro\" \/>\n<meta property=\"og:description\" content=\"Just west of Akalla, two of Stockholm\u2019s major infrastructure projects cross paths with each other. The new metro to Barkarby will be blasted into being five meters under the tunnels for the E4 Bypass Stockholm. The need to adapt to other underground or built-in facilities is common when building in Stockholm. Good dialogue and early [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/suri.templweb.com\/en\/close-quarter-between-bypass-and-new-metro\/\" \/>\n<meta property=\"og:site_name\" content=\"Nya tunnelbanan\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/nyatunnelbanan\" \/>\n<meta property=\"article:published_time\" content=\"2021-01-07T11:06:08+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2021-12-03T14:21:04+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/suri.templweb.com\/wp-content\/uploads\/2020\/12\/tunnelkorsning.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"700\" \/>\n\t<meta property=\"og:image:height\" content=\"440\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Henrik Engstr\u00f6m\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta 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