The 2022 Global Top 50 Construction Machinery Summit selected 50 representative construction machinery application cases in the world.，China Railway Construction Heavy Industry 12.Application of 19m Diameter Slurry Shield Machine in Mumbai Coastal Highway Tunnel Project, India，Open hard rock tunnel boring machine（TBM）Successful application in National Highway 351 Jiajinshan Tunnel Project。

2022 Global Top 50 Construction Machinery Summit Site

China Railway Construction Heavy Industries Co., Ltd. exported 12% to India.Slurry balance shield machine with a diameter of 19 meters and a length of 80 meters，Total weight 2300 tons，Installed power: 7280 kW，Largest diameter shield machine in India。The equipment was used in the Mumbai Coastal Road Tunnel Project with a monthly footage of 456 meters.，It has created a new record for the construction of large diameter shield in hard rock strata.，It marks that China's super-large diameter shield complete technology ranks in the forefront of the world.。

2022 T50 Construction Machinery Application Case Certificate

Tiejian Heavy Industry Open Hard Rock Tunnel Boring Machine Participating in the Construction of National Highway 351 Jiajinshan Tunnel Project（TBM）Excavation diameter 7.93 meters，It is 215 meters long，Total weight 1600 tons，On September 18, 2022, the daily footage reached 50 meters.，Created our country's highwayTBMA new record of daily driving footage。

  

January 10, 2022，The First Section of Mumbai Coastal Highway Tunnel Was Successfully Completed

  

September 18, 2022，“Jiajinshan”TBMUp to 50 meters per day，Created our country's highwayTBMA new record of daily driving footage

Railway Construction Heavy Industry Focuses on Differentiation、Customized high-end equipment R & D and manufacturing，Constantly enrich product categories，Optimize and upgrade product performance，Provide customization suitable for various complex application scenarios、Professional and intelligent high-end equipment and technical services，Committed to solving world-class underground construction problems，Customize more heavy equipment for global customers、Provide better solutions for China、Contribute more Chinese wisdom。