On 30 December 2021, an undersea tunnel with 4km length has been opened as part of the 38\u00b73 km southern extension of Qingdao metro Line 1 from Qingdao Bei Railway Station to Wangjiagang.<\/p>\n
In advance another 5\u00b74 km sea crossing tunnel on the east-west Line 8 was launched in December 2020, hence this is the city\u2019s second undersea tunnel. The date of construction commencing in the undersea section of Line 1 through 18 fracture zones was September 2015, while the tunneling process was completed in November 2018.<\/p>\n
Serving the mainline terminus before heading southwest across the neck of Jiaozhou Bay to Fenghangao and Wangjiagang, the Line 1 development passes beneath the city center. Comprising of 60\u00b71 km length and 41 stations, the intended line is operated by a fleet of 67 six-car Type B trainsets manufactured by CRRC Qingdao Sifang<\/a>. These are 118 m long and have a maximum speed of 100 km\/h and a capacity of 1 900 passengers, including 248 seated.<\/p>\n","protected":false},"excerpt":{"rendered":" On 30 December 2021, an undersea tunnel with 4km length has been opened as part of the 38\u00b73 km southern extension of Qingdao metro Line 1 from Qingdao Bei Railway Station to Wangjiagang. In advance another 5\u00b74 km sea crossing tunnel on the east-west Line 8 was launched in December 2020, hence this is the city\u2019s second undersea tunnel. The date of construction commencing in the undersea section of Line 1 through 18 fracture zones was September 2015, while the tunneling process was completed in November 2018. Serving the mainline terminus before heading southwest across the neck of Jiaozhou Bay […]<\/p>\n","protected":false},"author":2,"featured_media":5904,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[41,43],"tags":[120,590,1484,1485,47],"class_list":["post-5902","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","category-project-show-case","tag-china","tag-inauguration","tag-qingdao-metro-line-1","tag-second-undersea-metro-tunnel","tag-tunneling","post--single"],"_links":{"self":[{"href":"https:\/\/tunnelingworld.com\/index.php?rest_route=\/wp\/v2\/posts\/5902","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tunnelingworld.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tunnelingworld.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tunnelingworld.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/tunnelingworld.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5902"}],"version-history":[{"count":0,"href":"https:\/\/tunnelingworld.com\/index.php?rest_route=\/wp\/v2\/posts\/5902\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/tunnelingworld.com\/index.php?rest_route=\/wp\/v2\/media\/5904"}],"wp:attachment":[{"href":"https:\/\/tunnelingworld.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5902"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tunnelingworld.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5902"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tunnelingworld.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5902"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}