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China Railway Construction

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Nanyong Railway Total Direction Transformer 220KV Power Supply Successful Power Successful Power

In the early morning of September 10, the 220V power supply of all traction substations on the southwestern Chongtong Railway in the southbound of Guangnan was successfully delivered, providing power protection for the safety and reliability of the entire line. After the Nanning Railway is opened to traffic, the time of Nanning to Chongzuo will be shortened from the existing 2 hours to half an hour.

In order to ensure the safety and efficiency of the electricity of the traction substation, the China Railway Second Hospital, the China Railway Electricization Bureau and other units overcomes the difficulties of the epidemic, use various ways to strengthen the interface processing, and successfully compile the electrical plan. The China Railway Second Hospital's Electrariasis Institute is responsible for the design of the electrification project of the Nanchong Railway. For the project characteristics, the innovation method of innovation in the electrification engineering at a speed of 250 kilometers per hour uses a direct power supply method with the flow line; , Realize the functions of video surveillance, environmental information monitoring, security precautions, power lighting control of various traction pavilions along the line, form a comprehensive, multi -as -as -as -ized monitoring and inspection system, and for the full life of the traction substation equipment, the full life of the device equipment is the full life of the equipment. Cyclical monitoring lays a data foundation.

Zhengji High -speed Railway Puyang to the Provincial Boundary Box Beam Establishment has achieved new breakthroughs

On September 10th, with the accurate 32 -meter box of beams on the support of the Chengtai branch, Zhengji High -speed Railway Puyang to the Provincial Boundary Project Paper Fang Tiangliang Farm, which was responsible for the construction of the seven companies of the China Railway Shanghai Engineering Bureau, took the lead in taking the lead. Complete the first direction of the box beams on schedule to lay a solid foundation for the subsequent orbit construction.

Zhengji High -speed Railway Puyang to the Provincial boundary section is 19.975 kilometers. It is the regional connection line of the national "eight vertical and eight horizontal" high -speed railway network. The shortcomings of the nationwide road network helped the economic and social development and tourism resource development along the line.

The prefabricated and erection tasks of the Yawan High -speed Rail 4 Liangchang Farm Box Bag

On September 7, local time in Indonesia, with the accurate falling beams of the last box beam, the prefabricated and erection tasks undertaken by the No. 4 Liangchang Farm of Yawan High -speed Railway 4th Bureau of the China Railway Fourth Bureau were completed. The completion of the traffic has laid a solid foundation.

The Yawan high -speed rail connects the Indonesian capital Jakarta and the fourth largest city Bandung. It is the iconic project of the "Belt and Road" construction and the pragmatic cooperation between my country and Indonesia. project. The line design speed is 350 kilometers per hour. After completion, Jaca's travel time will be shortened from more than 3 hours to 40 minutes.

The progress of the Guangzhan high -speed rail has continued, and there will be no gap in the coastal area of ​​western Guangdong.

On September 6, the Guangzhan high -speed railway Moyang Jiangte Bridge 64 meters supporting the 64 -meter barrels of the China Railway Beijing Engineering Bureau was smoothly poured. The beam is currently the largest span of the high -speed railway under construction in China. Earlier, the Guangshan High -speed Railway Changqiao Xifu River Extra Bridge No. 237, which was undertaken by the China Railway Fifth Bureau, also completed the pouring on September 5. So far, the last super bridge on the entire line has also completed the construction of the lower main body structure, which has laid the launch of the Guangshan high -speed railway on schedule. A solid foundation.

The Guangzhan high -speed rail is an important part of the national "eight vertical and eight horizontal" high -speed railway network. The total length of the main line is about 401 kilometers and the design speed is 350 kilometers per hour. After the opening of the traffic, there will be a gap that has no railway high -speed rail in western coastal areas. Yangjiang, Maoming, and Zhanjiang are truly entering the era of high -speed rail.

The world's first public railway same layer of Duota Cold Bridge Heilong

On September 5th, the Guangdong -Hong Kong -Macao Greater Bay Area key project, which was constructed by the China Railway Bridge Bureau and a subsidiary of China Railway Industry, participated in the construction of the China Railway Nine Bridge, the main project of the Main Kim Sea Liang successor in the Dazhuji Intercity Jinhai Bridge. The bridge is the world's first Porta Cold Bridge on the same floor. With the width of the 49.6 meters of bridge deck, it has set a record for the widest public iron dual -use Deta cable bridge in the world.

The Golden Hait Bridge of Zhuji City is 1369 meters in length. It starts from Zhuhai Hengqin New District, across the West River Mo Daomen Waterway, and finally to the East Road of Zhuhai Airport. For the first time, the bridge adopts the multi -tower -rigid structure system public rail dual -use cable bridge structure. The main crossing of the four -tower cable bridge of the same layer of the public railway with 3 × 340 meters. Two -way six -lane highway at a speed of 100 kilometers per hour.

At present, the bridge has fully entered the construction stage of the bridge deck, ensuring that it will enter the rail paving phase in October this year, and will meet the traffic conditions next year. At that time, only 10 to 15 minutes from Zhuhai Jinwan to Hengqin, only 25 minutes from Zhuhai Airport to Gongbei, will greatly shorten the transportation time in the main urban and western urban areas, and promote the joint development of traffic infrastructure in the Guangdong -Hong Kong -Macao Greater Bay Area It is of great significance.

Hefei Rail Transit Line 8 Phase 1 Project continuously excavated the longest range of the right line to penetrate

On September 5th, the first phase of the Hefei Rail Transit Line 8 project undertaken by China Railway Investment and Construction of the Fourth Bureau of China Railway, continuously excavated the longest range of Hutang Road Station ~ Jinning Road Station, the right line was smoothly connected. This is 8 The 6th shield single -line interval of the number line.

The range of Jingsing Road Station is located in the mayor of Hefei, the mayor of Hefei, with a total length of 2131.5m and a total length of 2128.6m. The four companies and four companies of the China Railway have overcome the richer underground rock fissure water in the interval, and the dug -of -surface strata are not uniform, which causes difficulties such as the pipes and the difficulty of wear the knife tray. The measurement technology has reviewed the underground wire control network and other means, promoting the precise construction of the shield, and provided a guarantee for the smooth penetration of the interval shield. At present, there are 8 main structures of the 12 stations of Line 8, and there are 6 main structures of the main structure of the 8th. There are 6 single -line interval. The 18 shield machines are digging. Jixi City Xinxing Experimental School is delivered as scheduled

On September 1, the Jixi City Emerging Experimental School undertaken by the Ninth Railway Ninth Bureau was delivered. The school is the only directly under the nine -year consistent school of the Education Bureau of the Jixi City. The project construction adheres to the construction concept of "green environmental protection", meets the construction requirements of "built -in, and puts in", and creates the "wisdom of information technology and education and teaching in depth. classroom".

The delivery of Jixi City Emerging Experimental School is of great significance to the expansion of basic education in Jixi City, optimize the allocation of educational resources, and improve the level of running schools.

Chengdu West Front Line successfully crossed the Lixi River Bridge

On September 1st, with the accurate lifting of the tube closer section to the predetermined location, it marked the successful dragon of the domestic super -difficult alien arch bridge from China Railway Industry's China Railway Mountain Bridge -Chengdu West front line across the Yixi River Bridge.

The shape of the bridge scheme is very unique. Not only does the bridge surface move towards moderate bending and complement the agile water surface, but the bridge arch of up to 30 meters on both sides is gradually tilted and slowly closed. While ensuring the landscape, it also provides vehicles and pedestrians. Sample passage experience. During the construction process, the Zhongtie Mountain Bridge used a 12,000 -ton pressure machine to complete the 340 steel sheets of the hyperbolic panel pressure, and combined with laser cutting model to compare the real -time comparison to ensure the molding accuracy of the steel plate.

After the bridge is completed and opened to traffic, the West One Line will achieve the entire line. It will form a urban ring line north of the core area of ​​the eastern new district of Chengdu with the park avenue and the north line.

Two thousand -ton bridges in Xiaogan, Hubei successfully turned, across the Beijing -Guangzhou Railway

On August 30, at the intersection site of Changxing Third Road Extension and Beijing -Guangzhou Railway on Xiaoyun Avenue, Xiaoyun Avenue, Hubei Province, Wuhan Company of China Railway Seventh Bureau successfully completed the "double turn" of the two cantilever bridges to achieve "zero errors" docking Essence

The two -length and up to 10,000 tons of turntable bridges were rotated at 90 degrees simultaneously, successfully across the Beijing -Guangzhou line, and controlled the final interval within 30 cm. After the project is completed, it will alleviate the traffic pressure in the central urban area of ​​Xiaogan, and further build a "external ring, internal network" traffic network.

The first domestic -free weather -free steel box arch bridge successfully combined the dragon

On August 29th, the Chongqing Chengkou to the Kaizhou Expressway, the important controlling project of the Chongqing Chengkou from the Design of China Railway Yangtze River, completed the first domestic single -arch mixed rotor in China, and the double -arch ribs were successful.

The bridge is located in Xunki Township, Chengkou County, Daba Mountain, Qinling. The bridge is about 330.8 meters in length, which is the first domestic -free weather -free steel box arch bridge. The non -coating -free weathering steel can generate a protective layer by generating rust skin on the surface. "Rust -proof rust", so you can solve the problem of anti -corrosion of steel structure bridge without painting, greatly saving later management. At the same time, the bridge adopts a combination of "vertical turn+flat turn+vertical rotation" to perform a single rib siesting rotor co -dragon, which effectively solves the problem of transportation conditions and venue restrictions.

Mid -Autumn Festival does not snoring

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China Railway Construction

With no regrets, hard -working sweat

Add bricks to national infrastructure construction

Editor -in -chief 丨 Li Yuan, Shen Su

Editor in charge 丨 Xu Huimin

Content source 丨 China Railway Units

China China Railway Finance Media Center

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