Chongqing xamot tunnel construction grew up through the mountain tunnel in the new network model-dachiyouxiang

Chongqing xamot tunnel construction grew up through the mountain tunnel model – Beijing, Xinhua news agency, Chongqing, September 13 (reporter Qi Zhongxi) after the fourteen Bureau of China railway builders 27 months of construction, Chongqing city 13, Xiema two lane tunnel through, marking the three lane tunnel section long successful construction of high pressure and rich water karst crack problem and become a model of mountain tunnel construction. According to the fourteen Bureau of China Railway Group Xiema tunnel project manager Liu Jingzeng introduced the seventeenth tunnel Xiema tunnel is the main city of Chongqing in the mountains across the beam, the left line length of 4187 meters, the right line of the tunnel roof 4150 meters; maximum depth of about 392 meters, two-way six lane design for double hole, is a deep buried long tunnel. Contract amount of about 920 million yuan. Chongqing Xiema tunnel is currently the largest single project in Beibei District, it’s built to relieve the Wu Yu highway traffic pressure, open Beibei and city traffic bottleneck, has important significance to speed up the development of Beibei district. As the crossing mountain area of complex large section geological specialty, tunnel, the tunnel geological conditions are very complicated, there are fault fracture zone, karst, gas, high pressure and rich water quality requirements, with characteristics of strict, high safety risk, water environment protection is difficult, difficult construction.相关的主题文章: