The 52 venues and supporting infrastructure for the Winter Olympics in Beijing have started 44 projects; The national snowmobile sled center has completed more than half of the projects at present.
More than half of the 44 Winter Olympics projects in Beijing started “snow F1” track
On May 8th, workers were building the national snowmobile sled center track at the site construction site of the Yanqing competition area of the Winter Olympics.
The construction site of water diversion and centralized water supply project snow making in Yanqing district of Winter Olympic Games.
On May 8, workers at the construction site were wiping the cable bracket.
Beijing 2022 Winter Olympics will enter a countdown of 1,000 days. There are four new venues in the Yanqing regional project of the Winter Olympics, all of which have started construction. At present, the National Alpine skiing center has completed 57 percent of the total amount of work; The national snowmobile sled center has completed 52 percent of the total amount of work. The integrated pipe gallery of Yanqing district of Winter Olympic Games will have water supply and electricity supply conditions in September.
The National Speed Skating Museum, which is known as “Ice Ribbon”, has completed the cable net structure tension project of the roof of the venue, and is currently carrying out roof installation, secondary structure masonry and equipment pipeline installation, it will ensure the realization of “ribbon flying” during the year “.
Beijing News tomorrow, Beijing 2022 Winter Olympics officially enters 1000 days countdown. The reporter learned from the Beijing Major Project Office that 44 of the 52 Winter Olympics venues and supporting infrastructure organized and constructed by Beijing have been started, with an overall operating rate of 85%. Among them, there are 8 new venues, 5 renovated venues, 1 temporary venue, 26 supporting infrastructure and 4 other supporting facilities. Key projects such as National Speed Skating Museum, National Alpine skiing center and national snowmobile sled center are accelerating. The first test competition of Beijing Winter Olympics and the International Snow Federation Alpine Skiing Men’s World Cup will be held in the National Alpine skiing center of Yanqing division in February 2020.
Of the 31 supporting infrastructure projects for the Winter Olympics, 26 have been started, 4 have been completed, and 18 will be completed in 2019. Four supporting infrastructure projects, including Xingyan Expressway, Songyan Road (modified line segment), Changping 500 kV main transformer capacity expansion project, Changping three-way 500 kV delivery project, have been completed as planned.
Focus 1
National snowmobile sled center next March test track
A total of 4 new venues have been built for the Yanqing regional project of the Winter Olympics, all of which have started construction. At present, the National Alpine skiing center has completed 57 percent of the total amount of work; The national snowmobile sled center has completed 52 percent of the total amount of work; Yanqing Dongao village and mountain News Center are carrying out earthwork and supporting construction.
Snowmobile sled project is the fastest project in the Winter Olympics, also known as “snow F1”. The national snowmobile sled center adopts the world’s top track design, with a total length of 1.9 kilometers, a vertical drop of more than 120 meters and a maximum design speed of 134.4 kilometers per hour. It is the first snowmobile sled track in China, it is also the world’s first 360-degree swing track. During the 2022 Winter Olympics in Beijing, the national snowmobile sled center will undertake all the competition contents of snowmobile, steel frame snowmobile and sled.
Yesterday, the reporter saw at the construction site of the national snowmobile sled center at the foot of the small Haituo mountain that the workers were performing segmented concrete spraying construction on the track within the blue embroidery frame. According to reports, a track needs to be sprayed in one go, and it takes 24 hours of continuous operation on average.
According to Li Changzhou, deputy general manager of Beijing Olympic Construction Co., Ltd., 30 sections have been completed in all 54 sections of the national snowmobile sled center, except for 10 straight segments such as the receiving area and the departure area, the others are curve track. Curve track requires extremely high construction, and track construction should be refined to every angle and every surface.
According to reports, most of the track injection construction will come to an end at the end of June, and all track injection work will be completed at the end of August. After that, the construction of the track sunshade will be carried out to prepare for the test race in next March.
Focus 2
National Speed Skating Museum achieved “ribbon flying” during the year”
At present, 14 projects have been started in the Beijing division of the Winter Olympics, and 2 projects are planned to be completed this year. According to the relevant person in charge of Beijing Major Project Office, the National Speed Skating Museum, which is known as “Ice Ribbon”, has completed the cable network structure tension project of the roof of the venue, and is currently in the process of roof installation and equipment pipeline installation, it will ensure the realization of “ribbon flying” during the year “.
The National Speed Skating Museum “Ice Ribbon” is the landmark venue of Beijing Winter Olympics, where the 2022 Winter Olympics speed skating competition will be held. Its main venue covers an area of about 80000 square meters and has a height of 33 meters. It can accommodate about 12000 spectators.
The design inspiration of “Ice Ribbon” comes from the speed skating players’ circular racing, and the track of athletes sliding is interpreted as 22 dynamic ice ribbons on the facade, representing the 2022 Winter Olympics in Beijing.
The “Ice Ribbon” is designed as the world’s largest single-layer two-way orthogonal saddle-shaped cable mesh roof, the largest ice surface in Asia of 12000 square meters, and the Oval curved surface with free and smooth appearance is spliced by 3360 pieces of glass.
Other projects under construction in Beijing Division are also progressing smoothly. The “Water Cube” of the National Swimming Center is undergoing the transformation of the “Ice Cube” and plans to complete the transformation task of permanent facilities of the venue in July 2020. Shougang Ski Jumping Center and Wukesong Ice Sports Center are planned to be completed this year. Beijing Dongao village talent public rental housing project is currently under underground structure construction. It is expected that the structure will be capped by the end of 2019 and 5G signals will be fully covered during the competition.
■ Guarantee
The comprehensive pipe gallery of Yanqing competition area was completed before the venue.
As the basic guarantee project of Yanqing division of Beijing 2022 Winter Olympic Games, integrated pipe gallery is the “lifeline” of Yanqing division of Beijing Winter Olympic Games, which is the snow making water, domestic water, recycled water, electricity, access to municipal energy sources such as telecommunications and cable television provides channels.
Yesterday, the reporter saw at the site of the comprehensive pipe gallery with an altitude of 750 meters high that the section of the No. 3 branch of the comprehensive pipe gallery was divided into two layers, and workers in the tunnel were installing pipeline supports, reserved probes, sensors and other equipment. At the end of April, this pipe gallery has the conditions for pipeline entry into the corridor. The next step will be divided into various functional warehouses: the upper warehouse is the power warehouse and the electric letter warehouse, and the lower warehouse is the water warehouse, including snow making water, domestic water, and recycled water, special Vehicle passages for maintenance will also be installed on the ground.
According to Han Baojiang, deputy general manager of jingtou pipe Gallery Company, this comprehensive pipe gallery is 7.9 kilometers from the south to the foyukou reservoir and from the north to the core area of Yanqing competition area. The entrance section of the pipe gallery is 550 meters above sea level and the exit section is 1100 meters above sea level, extending from south to north to mountain. The average slope of the two sections is 5% and 10% respectively, the maximum slope of the peak reaches 15%, and the vertical lift reaches 550 meters. Vehicles transporting materials must be equipped with non-slip tires. In addition, due to the complex geological conditions of Yanshan mountains where the construction is located, surrounding rocks with different strengths appear alternately, resulting in great difficulty in construction and extremely high technical requirements.
This is also the first comprehensive pipe gallery built in mountain tunnels in China. It is reported that in addition to the traditional drilling and blasting method, the construction technology such as full-Section hard rock tunnel roadheader is also used to open up the “lifeline” in the mountain, this set a precedent in the construction of mountain tunnel with large slope.
According to the construction period plan, the comprehensive pipe gallery will have the conditions of water supply and electricity supply in September, which will be completed before the construction of the venue, providing guarantee for the test events of the Winter Olympic Games in Yanqing division.
Beijing News reporter Wu Jiaying’s Photography/Beijing News reporter Wang Jianing