[Explanation] On October 27th, the Jinan-Taian Expressway, which has attracted much attention from all walks of life, was officially opened to traffic. It became the first expressway in Shandong Province, not only convenient for people to travel, but also helped Shandong's Jinan as the center The economic, cultural and tourism development of the city circle will accelerate the integration of Jitai.
[Explanation] "Ji-Tai Expressway" faces Jinan in the north and Tai'an in the south. It is set at a speed of 120km per hour. It is a rare tunnel group highway in Shandong Province.
After the line was opened, the one-way driving time between the two cities was shortened to 30 minutes.
[Concurrent] Shi Ruijie, Deputy Manager of General Contracting Construction Department of Jitai Expressway
The total length of the Jitai Expressway is 56 kilometers, and the bridge-tunnel ratio is about 58%. The difficulty is still relatively high, especially for the Jinan section, which is about 24.1 kilometers. It is mainly mountain, mountain, mountain, and hilly. The whole line has 6 A key tunnel is also the most difficult tunnel for us to construct. It is called the Hailuoyu Tunnel. The total length is 3015m. The V-grade surrounding rock in it accounts for 86% of the total length, and there are also F1 faults. And Qianfo (Mountain fault zone) rock fault, the cave entrance is biased.
[Explanation] In order to solve this problem, the construction project department adopted a series of innovative methods such as advanced small pipe pressure grouting treatment, tunnel excavation construction work surface increase, pre-stress intelligent tensioning technology, etc., to ensure the full tunnel connection.
In the late autumn, the reporter noticed that the green trees, red leaves, and grasses decorated the mountains "nuggling" on both sides of the "Jitai Expressway" that day, and the scenery changed continuously with the extension of the highway.
The overwhelming scenic spots along the route "show" the abundant tourism resources in the surrounding area, guiding tourists and citizens to pass through.
[Concurrent] Zhang Qinghong, a villager in Liuzhong Village, Liubu Town, Jinan City
From Liubu (located in the southern mountain area of Jinan) to Tai'an, there is a Great Wall Ridge in the middle. The Great Wall Ridge is the kind of mountain that is extremely steep and the roads are not easy to walk. There are often car accidents. The first two days After just having the conditions for opening to traffic, I took a trip by myself. I went from Liubu to the city (Jinan). It took 20 minutes to get to the city. I passed the Red Leaf Valley in the middle. The mountains on both sides were full of red leaves. I passed the Jinxiu River. There are many beautiful buildings on both sides of the bridge, so it is very beautiful.
[Explanation] According to Shandong's transportation construction plan, in 2020, the province will build 14, 1026 kilometers of newly built and 20 kilometers of rebuilt and expanded expressways, and the mileage of Shandong expressways will exceed 7,400 kilometers, returning to China's first phalanx.
Hao Xuejuan and Yang Fei report from Jinan
Editor in charge: [Lu Yan]