Chongqing territory longest tunnel left line open!

2022-06-25 0 By

Chongqing Expressway Group news, March 16 morning, with a gun, the city opened long tunnel left line to achieve mastery, the same day, the tunnel exhaust shaft also achieved mastery.At present, the right line of the tunnel has entered the final excavation stage, with only 92 meters remaining, which is expected to be completed by the end of this month.The construction site chengkai Long Tunnel is 11.5 kilometers long, with a maximum buried depth of 1337 meters. It is the first tunnel with a length of more than 10 kilometers in Chongqing. It is the longest tunnel in Chongqing and one of the key control projects of Chengkai expressway.Chengkai expressway Tanjia to Zhaojia section of about 50 kilometers has been open to traffic, at present, Tanjia to Chengkou county section of roadbed engineering completed 75%, bridge and culver engineering completed 87.3%, tunnel engineering completed 93.5%, the section of bridge and tunnel engineering has entered the intensive through period, is expected to reach Chengkou county at the end of this year, chongqing will realize county to county high-speed.After the construction site opens to Chengkou county, it will continue to push forward to the Chongqing-Shaanxi border, and is expected to be completed and opened to traffic in 2026 together with the Shaanxi section, opening up a direct connection between Shaanxi and Chongqing and a fast inter-provincial channel.