Beijing Zhangjiakou high speed railway, a supporting transport project for the Winter Olympic Games, will open to traffic by the end of December this year

[cable news] preparations for the Winter Olympics are in full swing. Recently, I followed relevant leaders of China Railway to Qinghe station of Beijing Zhangjiakou high speed railway and the construction site of Zhangjiakou Winter Olympic stadium to visit the progress of infrastructure projects of the Winter Olympic Games The Beijing Zhangjiakou high speed railway, the supporting transportation project for the Winter Olympic Games, will be open to traffic by the end of December this year. It is understood that the Beijing Zhangjiakou high speed railway, the supporting transportation project for the Winter Olympic Games, will be open to traffic by the end of December this year. By then, the time from Beijing to Zhangjiakou by high-speed rail will be shortened to less than one hour. In addition, the "three fields and one village" (National Winter Sports Center, national ski jumping center, national cross-country skiing center and Olympic Village) in Zhangjiakou competition area of the Winter Olympic Games will strive to complete and deliver next year

was seen in Qinghe station of Beijing Zhangjiakou high speed railway. At present, the main works and decoration of the station have been basically completed, and the display screen and gate have been installed A 6031 a 6031 according to the relevant staff: "Qinghe station will be officially put into use by the end of December. At present, the station building construction has entered the decoration stage, and the next step is mainly to carry out seat installation, shop fine decoration and other finishing work. "

"Qinghe station is the most representative station of Beijing Zhangjiakou high speed railway, which represents the latest level of China's comprehensive transportation hub. Its biggest feature is the integrated design of railway, subway and municipal engineering." The relevant person in charge introduced to the reporter that Qinghe station is one of the departure stations of Beijing Zhangjiakou high speed railway, the largest station on the Beijing Zhangjiakou high speed railway line, and the high speed railway station with the largest number of metro lines introduced into Beijing. After completion, it will become the comprehensive transportation hub in the north of Beijing According to

, in terms of design concept, Qinghe station is endowed with the meaning of "embracing all rivers", with a building area of more than 400 times larger than the old station building, reaching 134700 square meters. The station adopts the structural methods of curved roof and cantilever roof to reflect the style of Beijing's ancient capital. At the same time, it displays the latest building technology with simple and powerful curve and A-type supporting structure to highlight the ancient charm and new appearance of the ancient capital. At the time of paying homage to the Beijing Zhangjiakou Railway for one hundred years, it shows the new achievements of China's development through the Winter Olympic Games.

Qinghe station is built by China Railway Construction Engineering Group, a wholly-owned subsidiary of China Railway, which is known as "the trump card army of railway station building construction". According to reports, at present, CRCC has built more than 400 railway station buildings in China, and the railway large station buildings and super large station buildings in cities above prefecture level are basically built by CRCC

"it can be said that China Railway Construction Engineering Co., Ltd. is an outstanding branch in the field of railway station buildings." Zhang Jianxi, chairman of China Railway Construction Engineering Group, said that railway station building is the facade of the city. In the process of construction, it often faces problems such as early-stage requisition and demolition, later stage scheme optimization, and short construction period. China Railway Construction Engineering Group has many years of brand and experience in the field of railway station building construction, and has significant technical advantages and construction experience in the construction of large-scale and large-scale station building and plateau railway station building And through the implementation of a large number of key station buildings, the professional technical team and project management team are trained. At the same time, the Construction Engineering Group has a good corporate culture, so that everyone can take on the critical tasks bravely and fight hard. These are the advantages of CRCC As the transportation guarantee line of 2022 Winter Olympic Games, Beijing Zhangjiakou high speed railway represents the highest level, construction standard and direction of the current high speed railway construction. China Railway undertook the overall survey and design task of Beijing Zhangjiakou high speed railway and Chongli railway

"Beijing Zhangjiakou high speed railway has complex terrain, tight construction and heavy tasks. For the first time, we have adopted intelligent equipment and technology to show the hard strength of China's high-speed railway construction, lead the new upgrading of China's high-speed railway, and open the world's first intelligent high-speed railway construction." Wang Hongyu, chief designer of Beijing Zhangjiakou high speed railway, said The Guanting Reservoir super bridge along the

Beijing Zhangjiakou high speed railway is the only steel truss bridge in the world that can meet the speed of 350 km / h, but the bridge crosses the Guanting reservoir, the reserve water source of Beijing. Wang Hongyu introduced that in the process of high-speed railway construction, in order to avoid water pollution, China Railway first adopted the trackless detachable inspection vehicle, the whole steel beam was assembled on the shore and then pushed in place, and the whole process was not constructed on water. At the same time, it put forward higher requirements for the anti-corrosion coating system of the steel truss beam, so that the coating system of the steel bridge only needs to be coated twice in the life cycle, greatly reducing The influence of steel beam coating on reservoir water body Mao Minghua, commander of Beijing Zhangjiakou high speed railway headquarters of China Railway Electrification Bureau, said: "the construction of Beijing Zhangjiakou high speed railway integrates a large number of advanced technical means and intelligent elements. By using BIM (building information model) technology, the two-dimensional drawings are transformed into three-dimensional real-life models to achieve the whole life management of the equipment from raw materials to operation and maintenance, which not only improves the construction efficiency, but also improves the project quality; the intelligent catenary cantilever, hanging string production line, intelligent catenary pole car, automatic drilling and installation platform in the tunnel and other professional chemicals are independently developed In order to control the straightness error of catenary wire within one hair wire, a health self diagnosis system and a natural disaster monitoring system based on big data are introduced in the way of robot inspection, which improves the intelligence of the substation; in Qinghe station, the largest transfer station of Beijing Zhangjiakou high speed railway, an intelligent garbage disposal system is installed, which can automatically transport and sort the waste into the substation Garbage, that's the recycle bin. " According to

, the total budget approved for the preliminary design of Beijing Zhangjiakou high speed railway is 53.54 billion yuan, including 47.88 billion yuan of static investment. There are 12 bid sections in 174 km of the whole line, of which 5 units of China Railway have undertaken the construction task of 7 bid sections in 90.2 km, accounting for 52% of the whole line. In addition, China Railway has undertaken the construction of four of the nine new station buildings along the line, and the "one bridge, three stations and three tunnels" of the key projects along the line, except Qinghuayuan tunnel and Zhangjiakou station building, the other key projects are undertaken by China Railway In the joint commissioning and test of

on October 20, the highest speed of Beijing Zhangjiakou high speed railway test reached 385 km / h for the first time, 10% higher than the design maximum speed. It is revealed that the Beijing Zhangjiakou high speed railway will be officially opened to traffic by the end of December

Zhangjiakou "three venues and one village" project is the main competition venue in Zhangjiakou competition area of Beijing Winter Olympic Games, which is also constructed by CRCC, and is also one of the most important housing construction and municipal projects of China Railway. Among them, "three" are ski jumping, cross-country skiing and winter sports, and one village refers to the athletes' village of the Winter Olympic Games

seen in the national ski jumping center, the construction is in full swing at present. The person in charge of the on-site project said that there are two standard jumping platforms in the ski jumping ground, with the height difference of 136 meters and 141 meters respectively, and the length of the slide 350 meters. The biggest difficulty of this project lies in the location of the valley. The space is narrow and the slope is steep. To support the ski way, the height of each beam is different, almost one beam is the same. According to reports, it is expected that the main steel structure project will be completed this year and delivered on June 30 next year

according to the introduction, ski jump into the Chinese element "Ruyi", that is, "Ruyi snow.". The top ring adopts special-shaped steel frame structure and double-layer reticulated shell structure, with a total steel consumption of about 1800 tons. It is the first ski jumping ground in China, and also the competition venue with the largest engineering quantity and the highest technical difficulty in the construction of the Winter Olympic venues in Zhangjiakou competition area A 6031 a 6031 cross-country ski resort has 10000 spectator seats, 3 kilometers away from the Olympic village. The track is divided into two parts, including the race track in the East Valley and the training track in the South Valley. At the same time, a 4520 square meter competition management building, outdoor venues and temporary buildings will be built to undertake 12 competition projects. In winter, the two central ski resorts are divided into two parts, including the competition track located in the East Valley and the training track located in the South Valley. They will undertake 11 competition projects and are currently under active construction and production.