On December 28, 2019, China railway 23rd bureau of engineering group participated in the construction of a major transport service guarantee project for the 2022 winter Olympic Games. The hebei section of the yanqing to chongli expressway passed the acceptance inspection smoothly, marking the completion of the hebei section of the main line. At 16:36 on December 30, the section from huailai north to taizi city was opened to traffic and test operation at 67.5 kilometers.

Construction of the main line of the yanjingzao highway in hebei began in August 2017 and was jointly undertaken by 14 construction units, including China railway no. 23 bureau, China railway no. 4 bureau and China communications no. 1 bureau. 23 as China the only cooperated-builing railway construction group, China railway bureau group overcame due to the tight shutdown caused by objective reasons, the green environmental protection requirement is high, the tunnel construction safety risk (greater than 80% of entire section tunnels, water up to 15000 square/day) adverse factors, such as strengthening the construction organization and management, science, wisdom, green construction, safety and quality efficiently finished drawing high speed highway bid ZT3 two tunnel and bridge construction tasks, such as the Olympic traffic security engineering comprehensive victory. Has been awarded more than 20 times by the owner, won the title of excellent construction unit, roadbed demonstration unit, quality project pilot unit, waste recycling demonstration unit and so on. It is the first to complete the expropriation and demolition of the whole line, the construction of the station and the completion of the first tunnel. To ensure that hebei province decided to yanjingzao the end of the commitment to the central government, the country's commitment to the preparation of the international winter Olympic Games into reality one by one.

It is reported that the hebei section of yanghou highway starts from the beijing-hebei boundary of huailai county, zhangjiakou city, and connects with the yanqing expressway section of Beijing, passing through huailai county and chicheng county, and ends in chongli taizi city. The main line is 81.552 km long and has four lanes in both directions. The whole line is located in high mountains, deep gullies and dangerous gullies, passing through two major fault zones and collapsible loess regions, with the maximum elevation difference of nearly kilometers. The project is a direct channel for Beijing to enter the chongli competition area in zhangjiakou for the winter Olympic Games. Project no. 1 ” , & other; The first batch of typical demonstration projects for green construction in China ” . Its completion and opening will form another high-speed corridor from Beijing to zhangjiakou and Inner Mongolia, which is of great significance to improving the expressway network of hebei province, promoting the coordinated development of beijing-tianjin-hebei, and promoting the tourism development and economic development of the areas along the route.
(Yang jing frost ma pengfei)
& have spent