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Home > News > Industry Information > Significant progress has been made in the Badaling Tunnel of Beijing-Zhangjia
Significant progress has been made in the Badaling Tunnel of Beijing-Zhangjia
Beijing-Zhangjiakou Intercity Railway is supporting traffic engineering in the 2022 Beijing Winter Olympics, the design speed up to 350km/h, through the high and cold, wind and sand area, construction conditions are extremely harsh. On September 14th, the Badaling Tunnel, which is one of the three difficult tunnels of the Beijing-Zhangjiakou Intercity Railway, has made great progress and it has been excavated to 5000 meters successfully cross the Great Wall Station which is the world's largest high-speed rail station.
Tunnel is an important form of human use of underground space and expansion shell anchor bolt is a common anchorage product for this kind of project.There is an expansion shell anchor bolt which is inserted into the hole, as the bolt is tightened by the installation drill, the expansion shell expands and the bolt tightens holding the rock together. Sinorock D28expansion shell hollow anchor bar has good shearing strength and rigidity, and can also be galvanized according to customer's demand, so as to obtain good anti-corrosion effect. At present, it has been widely used in underground works such as mines, tunnels and so on.
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