htmlOn September 23, the No. 2 inclined shaft of the Chongqing-Kunming High-speed Railway Yiliang Tunnel was successfully completed, and the world's longest speed of 350 kilometers per hour high-speed railway tunnel has entered the construction stage.
Chongqing-Kunming High-speed Railway (referred to as the Chongqing-Kunming High-speed Railway) is 699 kilometers long. It starts from Chongqing West Station, passes through Chongqing City, Sichuan Province, Guizhou Province and Yunnan Province, and connects to Kunming South Station. A total of 21 stations are planned and set up, with a designed speed of 350 kilometers per hour.
Yiliang Tunnel is a full-line control project of the Chongqing-Kunming High-speed Railway. It has a total length of about 24.8 kilometers. It is currently the longest high-speed railway tunnel under construction in the world with a speed of 350 kilometers per hour.
The environment of Yiliang Tunnel is located in a complex geological structure, with large undulations and sensitive regional environment. In this regard, the construction workers adopted the "multi-point flowering" method and multiple mechanical equipment were constructed at the same time, ensuring that the No. 2 inclined shaft successfully entered the main cave stage as scheduled.
Faced with the complex construction problems and tight construction period requirements of Yiliang Tunnel, the participating units adopted mechanized and efficient construction technology for full-work conditions of the tunnel to ensure construction quality and construction safety. At the same time, the No. 2 inclined shaft implemented a gloss blasting process, timely publicizing the dynamics of new risk sources, further accelerating the excavation speed.
Chongqing-Kunming High-speed Railway is an important part of the Beijing-Kunming Channel, one of the main channels of my country's "eight vertical and eight horizontal" high-speed railways. After completion and commissioning, it will further strengthen the connection between the Chengdu-Chongqing Twin Cities Economic Circle and the central Yunnan urban agglomeration, significantly reduce the operating time of the train from Chongqing to Kunming, and promote high-quality economic and social development along the route.
Jingxiongshang High-speed Railway officially started construction
htmlOn September 29, after careful preparation, the construction of the Beijing-Xiongshang High-speed Railway Xiongan New Area to Shangqiu section officially started construction. On the same day, the mobilization meeting for construction started was held in Xiong'an, Hebei, Liaocheng, Shandong, Puyang, Henan and other places along the Xiong'an New District to Shangqiu section of the Beijing-Xiongshang High-speed Railway.
The new Party Group of China Railway Group thoroughly implemented the decisions and deployments of the CPC Central Committee and the State Council, give full play to the driving role of railway construction investment in stabilizing the economic market, take effective measures to accelerate the preliminary work, and promote the start of new projects in a scientific and orderly manner. In September, five projects including the Xiong'an New District to Shangqiu Section and the Nanchang to Jiujiang High-speed Railway will be promoted. During the year, 20 projects including the Xiong'an New District to Xinzhou High-speed Railway, Chengdu to Chongqing Middle Line High-speed Railway, Xining to Chengdu Railway, and Jinghe to Alashankou Railway will be started one after another. The total mileage of the new line construction of 25 newly started projects has reached 5,387 kilometers, and the total investment scale has reached 1198.1 billion yuan.
Line construction diagram (provided by China Railway Construction)
The Beijing-Xiong-Shangqiu section of the Xiong'an New District of the Beijing-Xiongshang High-speed Railway started construction this time. The designed speed is 350 kilometers per hour, the total length of the main line is 552 kilometers, and the construction period is 4 years. The line starts from the Xiong'an Station of the Beijing-Xiong Intercity Railway in the north, passes through Xiong'an New District, Cangzhou, Hengshui, Xingtai City, Liaocheng City, Shandong Province, Puyang City, Henan Province, Jining City, Heze City to Shangqiu City, Henan Province, and finally to Shanghehang High-speed Railway Shangqiu Station. There are 16 stations in Xiong'an, Renqiuxi, Suining East, Shenzhou East, Hengshui South, Zaoqiang South, Qinghe West, Linqing East, Liaocheng West, Yanggu East, Taiqian East, Liangshan, Yuncheng, Heze East, Caoxian West and Shangqiu, among which the two stations in Xiong'an and Heze East are existing stations, the three stations in Liangshan, Yuncheng and Shangqiu are renovated and expanded stations, and 11 stations in Hengshui South are newly built stations. The total bridges from the Xiong'an New District to Shangqiu section of the Beijing-Xiong-Shangqiu High-speed Railway account for about 94%, of which the Yellow River Super Bridge located in Taiqian County, Puyang City, Henan Province is a full-line control project.
Xiong'an Station (provided by Yueyang)
Jingxiongshang High-speed Railway Xiong'an New District to Shangqiu section is an important part of the Beijing-Hong Kong (Taiwan) channel of my country's "eight vertical and eight horizontal" high-speed railway network. It is a major link between Beijing-Hong Kong (Taiwan) channel of the Beijing-Xiong'an New District section of the Beijing-Xiong'an New District section of the Beijing-Xiong'an New District section of the Beijing-Xiong'an High-speed Railway under construction, and the Nanchang-Jiujiang High-speed Railway under construction and the already completed and operated Shangqiu-Hefei High-speed Railway, Hefei to Anqing to Jiujiang High-speed Railway, Nanchang to Shenzhen High-speed Railway, and Shenzhen to Hong Kong High-speed Railway, forming another major high-speed railway channel in my country. At the same time, the Xiong'an New District to Shangqiu section of the Beijing-Xiong-Shangqiu High-speed Railway connects the Shijiazhuang to Jinan High-speed Railway and the Rizhao to Lankao High-speed Railway, which can achieve interconnection with the Beijing-Guangzhou and Beijing-Shanghai High-speed Railways. The status of the regional road network is very important. The Xiong'an New Area to Shangqiu section of the Beijing-Xiong-Shangqiu High-speed Railway will further optimize the overall function of the road network, greatly facilitate the travel of people along the route, effectively promote high-quality economic and social development, and is of great significance to serving the construction of Xiong'an New Area and assisting the coordinated development of Beijing, Tianjin and Hebei.
New high-speed rail station capped!
On the morning of September 28, the newly built Hechi Station Station was successfully topped off, becoming the first station to be topped off on the Guiyang-Nanning High-speed Railway.
Guinan High-speed Railway designed speed is 350 kilometers per hour. The entire line is expected to be opened and operated by the end of 2023. By then, the passage from Nanning to Guiyang will be shortened from the current 5 hours to about 2 hours.
New Hechi Station is located in Dongjiang Town, Jinchengjiang District, Hechi City, Guangxi Zhuang Autonomous Region, about 12 kilometers away from the original Hechi Station. The station building area is about 12,000 square meters. The station site is 3 platforms and 7 lines, and it can accommodate up to 2,500 passengers at the same time.
The main body of the newly built Hechi Station is based on the design concept of "Luan Xiang Feng Ji, Water Yun Hechi". The roof adopts a stacked design, which fully reflects the characteristics of the local ethnic minority sill-shaped building and enhances the visual impact of the station.
Reproduction diagram of the new Hechi Station
In order to improve the installation accuracy of metal roofs, railway builders conducted detailed calculations and simulations of 11 construction links including the installation re-test of the roof steel structure, strengthened the process acceptance between processes, and ensured that the construction of the Hechi Station metal roof was completed 10 days in advance and the cap was successfully completed.
The central part of the station waiting hall is based on the shape of the famous scenic spot in Hechi area, "Bamaming River", and the spherical air vents of the columns and beams are decorated with bronze drums to enrich the space effect and fully reflect local cultural elements.
waiting hall design renderings
waiting hall adopts a special glass curtain wall design. This kind of curtain wall can use good sunlight conditions to make indoor lighting and heat it in winter; summer can bring natural wind pressure to the room and promote air flow, creating a comfortable waiting environment, and saving energy consumption.
Outbound hall design rendering
In addition to Hechi Station, the construction of the newly built five stations in the Guangxi section of Guinan High-speed Railway, Nanning North, Mashan, Du'an, Yong'an and Huanjiang are all progressing in an orderly manner. Let's see what they look like ↓↓↓
Nanning North Station
Nanning North Station is designed with the "wind and rain corridor bridge" as the shape, highlighting the cultural characteristics of Zhuangxiang. The station site is 3 platforms and 8 lines. Two lines are reserved for the long term. It mainly undertakes the operation of high-speed trains starting, ending and passing through the Guinan, Nanchong and Nanyu high-speed railways.
Mashan Station
Mashan Station station design combines cultural elements such as drums, black goats, and Zhuangjin. A cylindrical diamond structure is designed in the middle of the entrance hall. The drum shape looks like drums, and the diamond shape fits the common patterns of Zhuangjin and embellishes the "drum body".
Du'an Station
Du'an Station is located in Liuli Village, Chengjiang Town, Du'an Yao Autonomous County. It highlights the meaning of "mountain and water Du'an" in its design concept. The station building is integrated with the surrounding strange peaks and ridges and the ancient ferry of Jinghe River, and the details show the Yao's style everywhere.
Yong'an Station
Yong'an Station is located in Yong'an Town, Du'an Yao Autonomous County. It is a small station building with one floor above ground and one floor underground. The station size is 2 platforms and 4 lines.
Huanjiang Station
Huanjiang Station is located in Huanjiang Maonan Autonomous County, Hechi City. It highlights the original ecological beauty of "peaks, forests, rock valleys, Maonan crowns" in the overall design. The details express the regional cultural characteristics of Huanjiang bamboo weaving and highlight the Maonan style.
At present, the overall progress of the station building project of the Guangxi section of the Guinan High-speed Railway has reached nearly 40% of the total design volume, and all the newly built tunnels have been completed and the "four electric" project is being carried out in an orderly manner.
(Data/Picture Source: China Railway)
