Qatar Doha Metro Integrated Railways Project(Red Line South)/Shield Tunnel

Summary

Doha Metro project is to build 300km length of subway system including 100 platforms and 4 lines in Doha, Qatar until 2019. Dong-ah performed 10.6km length of Red Line South section with 2 TBM Machines (7.1m in diameter) for 30 months. This project is listed in the Guinness Book of World Records for operating 19 large-caliber equipment simultaneously. As a successful participant of this project, it was a great opportunity for Dong-ah to let the world know our high technical skill.