1, Laopo tunnel, the total length of the left line is 3230m, and the total length of the right line is 33 15m. According to the standard of two-way six-lane expressway, the designed driving speed is 120km/h, which is the control project of the whole line in expressway, Ji Tai.
2. Hailuoyu Tunnel, with a total length of 3015m, is a controlled project in expressway of Jinan-Taiyuan, with 86% class V surrounding rock. It is the longest tunnel with the greatest construction difficulty and the highest construction risk.
3. Xiaofosi Tunnel is a long tunnel in expressway, with a right length of 1.6 13m and a left length of 1.643m, which is a separated structure with a designed driving speed of1.20km/h.
4. Liubu Tunnel, the left and right lines are 382m and 399m respectively, with two-way six lanes, design speed 120km/h and design service life 100 year.
5. The total length of Beiyatou Tunnel is 5,552 meters, of which the left line is 2,762 meters and the right line is 2,790 meters, which is one of the control projects of this project.
6. Changchengling tunnel, with a total length of 4. 15 km, the Changchengling extra-long tunnel is its main project, with a total length of 3.2 km, which is divided into left and right double tunnels, with a cumulative length of 6416 m. ..