Tianjin-Qinhuangdao passenger dedicated line is an important part of the national medium and long-term railway network planning. The total length of the main line is 26 1 km, with seven stations in Tianjin, Binhai, Binhai North, Tangshan, Luanhe River, Beidaihe and Qinhuangdao, with a design speed of 350 km/h. The Tianjin section is 70km long, 80% of which is viaduct, starting from Tianjin Railway Station, passing through Hedong, Dongli, Tanggu, Hangu and Ninghe counties in Tianjin, entering Hebei Province, leading to Qinhuangdao Station along the existing Jingshan Railway and connecting with Qinhuangdao-Shenyang Passenger Dedicated Line. Tianjin-Qinhuangdao Passenger Dedicated Line is located in the Bohai Rim region, connecting North China and Northeast China. The construction of this passenger dedicated line has a positive impact on shortening the time and space distance between Tianjin and Qinhuangdao, realizing the separate transportation of passengers and goods, and promoting the economic, cultural and technological exchanges between the two places. With the joint efforts of the Ministry of Railways, Hebei Province and Tianjin, the construction period of this project has been shortened from four years to two and a half years. More than half of subgrade earthwork and large and medium-sized bridges in Tianjin section of Tianjin-Qinhuangdao Passenger Dedicated Line have been completed, tunnel construction has started, and subgrade and some bridge projects will be completed by the end of the year.
According to Wang Zhijie, commander-in-chief of Tianjin-Qinhuangdao Passenger Dedicated Line of China Railway 18th Bureau Group, the Tianjin-Qin Ke Passenger Dedicated Line, which was built by the group, has a total length of 33 kilometers, of which the key project Tanggu West Crossing Jingjintang Bridge has a total length of 25.455 kilometers, accounting for 77.3% of the total length of the line. As of February 20 10, 12, of which 669,900 cubic meters of subgrade earthwork have been completed, accounting for 77.0% of the total. Cumulative number of bridges 17948 linear meters, accounting for 70.4% of the total; 8 192 bored piles were completed, accounting for 99.1%of the total; A total of 795 caps were completed, accounting for 98.3% of the total; A total of 842 piers were completed, accounting for 98.3% of the total; A total of 676 holes were completed for precast beams and 503 holes were completed for frame beams.
Hulushan Tunnel, with a total length of 3,800 meters, is the key control project of Tianjin-Qinhuangdao Passenger Dedicated Line. The tunnel is located in lulong county and Funing counties of Qinhuangdao City, with a mileage of DK222+215-DK226+015. The plane of the tunnel is straight, and the longitudinal section has a slope of -9 ‰. The tunnel is located in the denuded mausoleum area, with local gullies developed. The tunnel body is Yanshanian granite, with a maximum burial depth of 270%. Except for open-cut tunnels, they are all constructed according to NATM, with composite lining. The primary support adopts anchor rod, steel mesh, sprayed fiber concrete and steel support (grid steel frame and I-beam), and the secondary support adopts molded concrete or reinforced concrete. The designed driving speed is 350m/h, and it is required to open on June 20th 1 0+June1. Hulushan Tunnel, located in the north of Liuhe Mountain in lulong county, was completed on August 22nd, 20 10.
On the morning of June 12 and 15, the Tianjin-Qinhuangdao passenger dedicated line, as a national key construction project, entered the stage of comprehensive track laying, and the first group of tracks landed smoothly. 20 13 March 22nd, at Qinhuangdao development section of Tianjin-Qinhuangdao railway passenger dedicated line,
Construction workers of China Railway Electrification Bureau Group set up wires on the newly laid railway.
20 13 March 22nd, Qinhuangdao, Hebei Province, Tianjin-Qinhuangdao passenger dedicated line, ballasted train.
The newly laid railway in the development zone is paved with ballast stone.
2065438+On March 22nd, 2003, in Qinhuangdao Development Zone, Hebei Province, the construction personnel of China Railway Electrification Bureau Group adjusted the wrist arm for stringing on the newly laid railway.
20 13 On March 22nd, in Qinhuangdao Development Section of Tianjin-Qinhuangdao Passenger Dedicated Line, the construction personnel of China Railway Electrification Bureau Group are going to erect electric wires on the newly laid railway. 20 13 On April 3rd, the bid section organized by Tianjin-Qinhuangdao Passenger Dedicated Line Project Department of China Railway 18th Bureau Company passed the static acceptance of the Works Section of Beijing Railway Bureau.
2065438+On March 28th, 2003, the engineering static acceptance team of the Public Works Department of Beijing Railway Bureau, together with the staff of Tianjin design, supervision, station bureau and other relevant units, made a static acceptance of the 8.93km section organized by the Tianjin-Qinhuangdao Passenger Dedicated Line Project Department of the four companies. The static acceptance passed smoothly on 29th, which provided a strong guarantee for the joint commissioning test of Tianjin-Qinhuangdao Passenger Dedicated Line on April 20th, 20th, 20th13rd, and laid a solid foundation for the smooth opening in August.
Static acceptance of high-speed rail involves many contents and a wide range of inspection. It is the inspection and effect evaluation of tracks, bridges and culverts, precision control survey and indoor data, and it is also a necessary condition for the trial operation of high-speed rail. On the afternoon of 20 13, 14, two simply supported T-beams of Tianjin-Qinhuangdao Passenger Dedicated Line built by the Second Project Department directly under Beijing Railway Construction Company of China Railway Sixth Bureau were successfully erected at the same time.
The two middle bridges are the middle bridge of Jinshan double-track aluminum company and the middle bridge of Tianjin-Qin passenger dedicated line aluminum company. The middle bridge is a double-track 2-32m simply supported T-beam, with a single beam weight of 1.39 tons and 8 T-beams. Beijing Railway Construction Company adopts double-machine beam lifting. After two sets of 150 ton crawler cranes rhythmically completed a series of coordinated actions such as lining, hook dropping, trial hoisting, hoisting and propulsion, the T-beam landed smoothly at the predetermined position. On June 5th, 20 13, it was learned that as two stopovers of Tianjin-Qinhuangdao Passenger Dedicated Line and Beijing-Tianjin Intercity Extension High-speed Railway, the main part of Junliang North Station has been completed ahead of schedule.
Tianjin-Qinhuangdao Passenger Dedicated Line starts from Tianjin Railway Station, passes through Tianjin Binhai New Area, Tangshan, Hebei and Beidaihe, and ends in Qinhuangdao. The main line is 26 1 km long and has entered the sprint stage before opening to traffic. After opening, it takes only 30 minutes from Tianjin Railway Station to Tangshan and 50 minutes to Beidaihe. The Beijing-Tianjin Intercity Extension Line starts in tianjin railway station and ends at Jiabao Station. The total length of the line is about 44.8 kilometers. Upon completion, it will take 45 minutes to reach Yujiapu, the business core area of Binhai New Area, and 5 minutes to reach Yujiapu/KLOC-0, the business core area of Binhai New Area. The entire line of Binhai section of Tianjin-Qinhuangdao passenger dedicated line was formally laid. The project is progressing at a speed of 6 kilometers per day, and it is estimated that the single-track laying of the coastal section can be completed in about 4 days. The construction party, China Railway No.22 Bureau Group No.6 Company, said that the laying of the track slab in the coastal section has been completed, laying a solid foundation for the whole track laying.
The main line of Tianjin section of Tianjin-Qinhuangdao Passenger Dedicated Line is 65 kilometers long, with the coastal section from Tanghuang Road in Tanggu to Chadian Town in Hangu. At the construction site, long track slab lines extend. It is understood that more than 7,000 track slabs and 0.4 million track fasteners have been installed along the coastal section. These track slabs have advanced production technology, which can ensure the safe and stable operation of high-speed trains and lay a solid foundation for smooth track laying. At present, the power supply project of Tianjin-Qinhuangdao Passenger Dedicated Line has entered the final stage of construction. It is expected to be fully completed on July 7, 20 13, with power supply conditions. Relevant departments will organize joint debugging and testing.
It is understood that the Tianjin-Qinhuangdao Passenger Dedicated Line is an electrified railway, and its power is provided by electric energy. In Tianjin, there are two 220kV traction stations on Tianjin-Qinhuangdao Passenger Dedicated Line, one in Dongli District (Xinxing Village Traction Station) and the other in Hangu Chadian Town (Liu Zhuang Traction Station).
Liu Zhuang Traction Station is powered by dual power sources of Chuangye 220kV Substation and Hangu 220kV Substation, in which the line length from Chuangye Substation to Liu Zhuang Traction Station is 16. 1km, 50 new iron towers are built, and the line length from Hangu Substation to Liu Zhuang Traction Station is 2.7km, and 9 new iron towers are built.
After the power supply project of Tianjin-Qinhuangdao Passenger Dedicated Line is completed, the joint debugging and joint test of Binhai section of Tianjin-Qinhuangdao Passenger Dedicated Line will be organized in early July. High-speed inspection trains and other test equipment will gradually test the track, catenary, communication, signal and other equipment along the railway before opening for operation, until the whole system meets the requirements of high-speed operation and dynamic acceptance. Xinhuanet Tianjin 2065438+July 26, 2003 (Qi, Li Chaozhen) At 8: 30 on July 26, the 550 1 1/2 hot-sliding test vehicle began to carry out the hot-sliding test on the Tianjin-Qinhuangdao passenger dedicated line, which marked that the Tianjin-Qinhuangdao passenger dedicated line, which had been built for more than four years, was fully completed and was about to enter the joint debugging before it was opened for operation.
According to the technical personnel of a company of China Railway Electrification Bureau, the hot sliding test of the railway passenger dedicated line is to test the relationship between the pantograph and the catenary and the traction power supply system when the catenary is electrified. Joint debugging and joint test is a process of testing the track, catenary, communication, signal and other equipment along the railway step by step before the railway is opened for operation, and adjusting the defects found according to the test results until all systems and the whole system meet the requirements of high-speed operation and dynamic acceptance.
Since July 20th, six traction substations of Tianjin-Qinhuangdao Passenger Dedicated Line have been put into operation. From 20 10: 30 to July 25, the power transmission of the whole catenary was successful, which laid the foundation for comprehensive joint debugging and testing. The reporter learned from the Beijing Railway Bureau yesterday that on the 20th13rd, the Tianjin-Qinhuangdao high-speed railway entered the joint debugging and testing stage.
The Tianjin-Qinhuangdao high-speed railway started construction on June 5438+065438+1October 8, 2008, with a total length of 257 kilometers and a design speed of 350 kilometers per hour. It starts in tianjin railway station and ends at Qinhuangdao Station, passing through Tianjin Binhai New Area, Ninghe County, Tangshan City, Luanxian County, lulong county County, Funing County and Beidaihe District of Hebei Province. The whole line is located in Tianjin West, north of Tianjin Junliang City and Beidaihe District.
Since the start of construction, Tianjin-Qinhuangdao high-speed railway has successively completed key tasks such as tunnel penetration, bridge penetration, subgrade filling, ballastless track slab laying and track laying. Today's joint debugging test will mainly include step-by-step speed-up joint debugging test, signal system joint debugging test and full-line penetration test. Through the joint debugging and test, the performance and function of each system and the whole system of high-speed railway meet the design requirements, and meet the requirements of opening and operating at the design speed. After the joint debugging test, the Tianjin-Qinhuangdao high-speed railway will also carry out operation tests, conduct comprehensive drills on the driving organization and emergency rescue capability of the whole high-speed railway system under normal and abnormal operation conditions, conduct comprehensive training for operators and conduct operation tests on equipment. Liu Han Line, the second power supply of Liu Zhuang 220 kV traction station of Tianjin-Qinhuangdao Passenger Dedicated Line, runs through the whole line, which has the power transmission conditions, marking the complete completion of the power supply line project of Liu Zhuang traction station.
The two power supplies of Liu Zhuang Traction Station of Tianjin-Qinhuangdao Passenger Transport are provided by Chuangye 220kV Substation and Hangu 220kV Substation respectively. Among them, the path length from Chuangye to Liu Zhuang is 16. 1 km, and 50 new iron towers are built. The path from Hangu to Liu Zhuang is 2.7 kilometers long, and nine new towers are built. The Liu-Han line has power transmission conditions, and the commissioning of the second power supply will provide a stronger and more stable power guarantee for the official opening of the Tianjin-Qin passenger dedicated line and lay a more solid foundation for the safe operation of the high-speed rail.
Tianjin-Qinhuangdao Passenger Dedicated Line is an electrified railway, and its power is provided by electric energy. Tianjin-Qinhuangdao Passenger Dedicated Line * * has two 220kV traction stations in Tianjin, one in Dongli District (Xinxing Village Traction Station) and the other in Hangu Chadian Town (Liu Zhuang Traction Station), which is an important infrastructure to provide power support for the catenary of Tianjin-Qinhuangdao Passenger Dedicated Line, and the line will also provide communication signal transmission.
Tianjin-Qinhuangdao Passenger Dedicated Line is an important economic link connecting Bohai Economic Zone. Harbin-Dalian Passenger Dedicated Line can be connected to the north, Beijing-Tianjin Intercity Railway can be connected to the west, and Beijing-Shanghai High-speed Railway can be connected to the south, forming a convenient, efficient, energy-saving and environmentally-friendly fast passenger passage that runs through Northeast China, North China, East China and Central South China. After the station is put into operation, it will be connected to the power and communication network for joint debugging and trial operation to prepare for the trial operation. According to the latest news of the Tianjin-Qinhuangdao high-speed railway on the 6th, the Tianjin-Qinhuangdao high-speed railway began trial operation to make final preparations for the official opening of the Tianjin-Qinhuangdao passenger dedicated line before the end of the year. After the opening of Tianjin-Qinhuangdao high-speed railway, it is of great significance to the economic and social development along the line.
2065438+August 2003, Tianjin-Qinhuangdao high-speed railway began joint debugging and joint test. The test results show that the overall system function of the line meets the design requirements. After the joint debugging test, the operation test is mainly to conduct a comprehensive exercise on the driving organization and emergency handling ability under normal and abnormal operation conditions of the whole line system, to conduct practical training for operators and to test the equipment.
After the Tianjin-Qinhuangdao high-speed railway is put into operation, it is of great significance to shorten the time and space distance between Northeast China and Guanzhong area and cities along the line, enhance the economic, cultural and information exchange between Northeast China and Guanzhong area, and promote the economic and social development along the Tianjin-Qinhuangdao high-speed railway.