This year marks the tenth anniversary of the implementation of the Beijing-Tianjin-Hebei coordinated development strategy.。For ten years，The coast of the Bohai Sea，Surging momentum of development；The land of Yanzhao，The east wind blows vigorously into one body，The coordinated development of Beijing, Tianjin and Hebei has achieved fruitful results.，Step up to a new level。

For ten years，China Railway Construction Heavy Industry Co., Ltd. Practicing the Responsibility of Central Enterprises、Heart“The great of the country”，With high-quality heavy equipment of a big country，Serving the overall situation of national economic development with high quality，To contribute to the coordinated development of Beijing, Tianjin and Hebei。

Let's review it together.，Railway Construction Heavy Industry has participated in some rail transit projects in Beijing-Tianjin-Hebei region in the past ten years.。

Beijing East Sixth Ring Road Reconstruction Project 

Beijing East Sixth Ring Road Reconstruction Project starts from Beijing-Harbin Expressway in the south，North to Luyuan North Street，Design speed 80 kilometers per hour，The total length is about 16 kilometers.，It is the sub-center of Beijing.“Create an innovative development axis to sew up urban functions、Effectively Weaving Urban Space、Solving the problem of dividing cities by expressways”A landmark project。

China Railway Construction Heavy Industry Co., Ltd. is the first domestic 16-meter super-large diameter shield machine.“Jinghua”The excavation task was completed on June 28, 2023.，Get out of the hole smoothly，During the construction process, the maximum daily footage of 24 meters was achieved.、The maximum monthly footage is 542 meters.，Helping the First Line of the Longest Shield Expressway Tunnel in China。

  Beijing-Tangshan Intercity Railway  

Beijing-Tangshan Intercity Railway starts from the comprehensive transportation hub station of Beijing's urban sub-center.，It ends at the existing Tangshan Station in Tangshan City, Hebei Province，Designed maximum speed of 350 kilometers per hour，To dredge Beijing's non-capital functions、It is of great significance to improve the railway network structure in the Beijing-Tianjin-Hebei region.。

Railway Construction Heavy Industry“Jingtong”Yunchaojianhe Tunnel of Beijing-Tangshan Railway with Shield Machine，It is the first large diameter shield tunnel of high-speed railway connecting Beijing-Tangshan Intercity Railway and Beijing City Vice-Center Hub.。Equipment excavation diameter up to 13.3 meters，It is the largest diameter shield machine currently under construction in Beijing.。

  Tianjin-Xingtai Intercity Railway  

Jinxing Intercity Railway connects Tianjin to Beijing Daxing International Airport.，For singing well in Beijing and Tianjin“A tale of two cities”、Create a highland for regional development、It is of great significance to promote the coordinated development of Beijing, Tianjin and Hebei.。

Railway Construction Heavy Industry “Xing'an”Large diameter（12.72 meters）Yu'an No.3 Tunnel Constructed by Earth Pressure Balance Shield Machine，It is also the key track-laying channel of the airport connecting line connected with Jinxing Railway.，It is also the only shield tunnel of Jinxing Railway.。The equipment completed the excavation task on June 22, 2023.，The maximum daily footage of 26 meters has been achieved in the excavation construction.，The maximum monthly footage is 520 meters.，It has laid a solid foundation for the successful completion of the second phase of Jinxing Intercity Railway Project.。

   South Extension Project of Changping Line of Beijing Metro   

Shangqingqiao Station, Bid 06, South Extension of Changping Line of Beijing MetroBThe entrance and exit passage is located on the east side of the station main body.，Underpass Beijing-Tibet Expressway。This project is the first time in the history of Beijing rail transit to use rectangular pipe jacking machine for the construction of entrance and exit passages.，It is also the first time that Beijing Metro has adopted rectangular pipe jacking technology to cross the expressway.。

Railway Construction Heavy Industry  “Municipal Pioneer”Rectangular pipe jacking machine participates in engineering construction，The equipment completed the excavation task on July 26, 2022.，Average daily footage of 3m，The maximum ground settlement shall not exceed 10 mm.，It has set a precedent for Beijing rail transit in this field of construction technology.。

  Beijing-Shenyang High-speed Railway 

The Beijing-Shenyang high-speed railway connects Beijing and Shenyang.，It is an important rail transit facility connecting the two economic regions of Bohai Rim and Northeast Industrial Base in Beijing.，It is also an important transportation guarantee facility for the Beijing Olympic Winter Games in 2022. 。

Developed by China Railway Construction Heavy Industry for Beijing-Shenyang Wangjing Tunnel Project“Wangjing No.1”Shield machine is the first domestic high-speed rail large-diameter slurry balance shield machine with completely independent intellectual property rights.。The equipment will complete the tunneling task in August 2021.，Average monthly footage of 360m。

  Beijing Metro Line 8  

Bid 3 of Phase 3 of Beijing Metro Line 8 is Wangfujing Station～Tunnel between Qianmen Station，The length of the tunnel shield is 1598 meters.，Underpass the buildings of Dongjiaomin Alley，Most of the buildings are state-level cultural relics.，High requirement for surface subsidence。

Railway Construction Heavy Industry“Zhengyang two”The slurry balance shield machine completed the tunneling task in November 2020.，Multi-crossing special-grade risk source，Structural settlement less than 1 mm，It can be called“Zero settlement”。

  Beijing South-to-North Water Diversion Project 

It is an important supporting project for the Beijing section of the South-to-North Water Transfer Project.，Hexi branch line project takes water from Daning storage reservoir.，Pressurized water delivery to Sanjiadian regulating tank。After the completion of the project，It will effectively solve the problem of water use in southwest Beijing.，Improve the ability to guarantee urban water resources in the southwest region。

China Railway Construction Heavy Industry Co., Ltd. is tailored for Hexi Branch Line Project“Jingshunda”The EPB shield machine achieved a daily footage of 46..A record of 8 meters，It is efficient for the tunnel、Safe、Environmental protection、Rapid construction provides a strong guarantee.。

 BeijingOlympic Winter Games Comprehensive Pipe Gallery Project  

The comprehensive pipe gallery of Olympic Winter Games in 2022 is located at the foot of Haituo Mountain, about 18 kilometers northwest of Yanqing District, Beijing.，The total length of pipe gallery is 7.5 kilometers，In addition to introducing the water source of Foyukou Reservoir into the Yanqing Zone,，In addition to meeting the water demand of about 900,000 cubic meters of Olympic Winter Games venues，It is also the power guarantee of the competition area.、Comprehensive transmission pipe gallery for communication and live broadcast of events，Therefore, it is called“Lifeline of the competition area”。

Railway Construction Heavy IndustryTBMThe 01 bid section involved in the construction is the first time to be adopted in the Olympic Winter Games.TBMA construction project，It is also used in large-scale underground comprehensive pipe galleries in China.TBMThe first show of construction。The equipment completed the excavation task on August 1, 2018.，Maximum monthly footage: 356m，Average monthly footage of 248m，The first alpine skiing test event in 2020 was successfully held.。