Chinanews.com, Lanzhou, December 28 (Feng Zhijun and Yang Yanmin) China Railway Lanzhou Bureau Group Co., Ltd. held a "Press Conference on the Opening and Operation of the Zhongwei-Lanzhou Section of the Yinchuan-Lanzhou High-speed Railway" on the 28th. ) from Zhongwei to Lanzhou will be opened for operation on the 29th.
So far, the Yinlan-Lanzhou high-speed railway has achieved full-line operation. It takes only 2 hours and 56 minutes from Yinchuan to Lanzhou, and it only takes 4 hours to reach Qingyang and Lanzhou in the old revolutionary base area.
The Yinchuan-Lanzhou high-speed railway connects Yinchuan, the capital of the Ningxia Hui Autonomous Region, and Lanzhou, the capital of Gansu Province. It has a total length of 431 kilometers and will be constructed in two sections. The Yinchuan-Zhongwei section was opened for operation on December 29, 2019.
The Zhongwei-Lanzhou section, which is in operation this time, starts from Zhongwei South Station, passes through Zhongwei City in Ningxia, Baiyin City in Gansu Province, and Lanzhou City, and connects to Lanzhou West Station of the Lanzhou-Xinjiang High-speed Railway. The total length of the line is about 219 kilometers, and the design speed is 250 kilometers per hour.
Aiming at the line selection of high-speed rail in collapsible loess areas, it successfully avoided many environmentally sensitive points
The picture shows the trial operation of the Yinlan high-speed railway line.
(Data map) Photo by Zhang Boxing
The Zhonglan section of the Yinlan-Lanzhou high-speed railway passes through the loess plateau's alpine valleys, intermountain alluvial fans, and loess Liangmao areas. The climate conditions are cold in winter and hot in summer. , Construction requirements are extremely high.
"In the survey and design of the Zhongwei-Lanzhou section, a series of special studies were carried out on the selection of high-speed railway lines in collapsible loess areas, as well as complex geology such as geological karst development and many goafs along the line." China Railway Fifth Survey and Design Institute Group Co., Ltd. Qiu Xiaolan, the chief designer of the company's Zhonglan high-speed railway, said that the design team actively organized special research, repeatedly demonstrated the plan, and continued to optimize the design for key technical problems such as multiple folds and faults passing along the line, two crossing active fault zones and continuous crossing of the Yellow River. And successfully avoided 8 environmentally sensitive points such as the national ecological function zone, ensuring that the route plan is reasonable and technically feasible.
At the same time, in the site selection and route selection, the design team used bridges to pass through the Yellow River and the Beiwan area, and walked at the foot of the hillside in the Jingyuan area to minimize the occupation of basic farmland; when crossing the Xujiawan cultural relics When protecting the site, the continuous beam design was adopted to completely preserve the historical features.
In the tunnel project, through the principle of "early entry and late exit" at the tunnel entrance, excavation operations are minimized and damage to vegetation along the line is minimized.
Qiu Xiaolan said that in the construction of the longest single-hole high-speed rail tunnel in Northwest my country and the Xiangshan Super-long Tunnel, a key control project on the entire line, the tunnel with a total length of 17.763 kilometers passes through 9 fault fracture zones and 4 folds, and is distributed along the line. Harmful gas, rockburst, soft rock deformation, Tertiary water-rich and weakly cemented sandstone and other unfavorable geological problems, the design team organized expert demonstrations for many times, continuously improved and optimized the design plan, and carried out various special projects against harmful gas, active faults, and earthquake resistance. The design and precise implementation of tunnel excavation ensured the smooth commissioning of the project.
The "surging" flow of people, logistics and information in Northwest China adds new economic growth points
Wang Dalin, chief dispatcher of China Railway Lanzhou Bureau Group Co., Ltd., said that the Yinlan high-speed railway has seven stations: Zhongwei South, Beitan, Pingchuan West, Jingyuan North, Baiyin South, Qinwangchuan, and Lanzhou West.
In the initial stage of opening and operation, the railway department will arrange passenger trains from Yinchuan to Lanzhou according to the daily line, weekend line, and peak line. There are up to 15 pairs of EMU trains per day. Lanzhou to Yinchuan and Zhongwei are shortened by 5 hours, 26 minutes, and 4 hours 04 minutes.
As an important part of China's "eight vertical and eight horizontal" high-speed railway network Beijing-Huyin-Lanzhou Passage, the northern end of Yinlan High-speed Railway connects with Baolan Passage, the southern end connects with Zhengxi High-speed Railway, Xicheng High-speed Railway and other high-speed railways through Xi'an hub, and the western end connects with Lanzhou The new high-speed railway and Baolan high-speed railway are connected, the main skeleton of the road network has obvious characteristics, and the geographical location is important.
It is understood that the Yinlan high-speed railway will further improve the road network in the west, especially the high-speed rail network pattern, enhance the radiation ability of Lanzhou, Yinchuan and other core cities in the northwest, greatly promote the rapid flow of people, goods and information in the northwest, and then change people's life. Production and lifestyle have become an important growth pole to drive the development of local economy, culture, tourism and other industries, and an important transportation infrastructure to accelerate the economic opening of the northwest inland provinces of Ningxia, Gansu. Development and rural revitalization play a very important role.
Wang Dalin said that after the opening of the Yinlan-Lanzhou high-speed railway, the regional railway passenger service capacity will also be significantly improved, and the public will have more choices in travel methods. In addition, the regional tourism resources are very rich, such as Dunhuang Mogao Grottoes, Jiayu Xiongguan, Colorful Danxia, Lanzhou A large number of tourist attractions such as the First Bridge of the Yellow River, Maiji Mountain in Tianshui, Shapotou in Ningxia, and Shahu Lake in Yinchuan constitute a colorful tourist belt and will become new economic growth points in Gansu and Ningxia provinces.
Pang Xiaocheng, Secretary of the Party Committee of the Lanzhou Passenger Section of China Railway Lanzhou Bureau Group Co., Ltd., said that the Yinlan high-speed railway will create special services based on the service brand of "Western high-speed railway · Dunhuang Star", which will provide smiling service, reminder service, listening service, and no interference. The comprehensive service runs through the whole process of high-speed rail train service, in-depth understanding of travel information such as customs, places of interest, and special delicacies along the way, laying a solid foundation for providing travel consulting services.
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