QATAR RAIL SETS NEW GUINNESS WORLD RECORD FOR MOST TBMS IN ACTION
Qatar Rail has officially been named by the Guinness World Records for “The Largest Number of Tunnel Boring Machines Operating Simultaneously in a Single Project," marking a milestone for large-scale transport projects in Qatar and across the region.

Qatar Rail has 21 tunnel boring machines at work for its Doha Metro project, beating its own previously held record of 19 TBMs.
"Since we embarked on this journey, we’ve committed ourselves, our resources, our partners and our technologies to delivering world-class projects with speed and efficiency," Qatar Rail’s managing director, Eng. Abdulla Abdulaziz Al Subaie said. “This certificate is only a chapter in our story. I am confident in that Qatar Rail will be seeing more record-setting achievements in the future."
The TBMs were imported from Germany and are set to accomplish the tunnelling phase in 2017, while the first stage of the Doha Metro project will be delivered later in 2019.
The certification process for Qatar Rail entailed a stringent verification process undertaken by the Guinness World Records Authority, which included a verification committee of 20 inspectors appointed for every operational TBM. Each machine was filmed in action.
Qatar Rail also had to supply the Geographic Information System (GIS) data to the inspectors which confirmed works and status of all TBMs.
Validating the results has been undertaken by Professor Arnold Dix, an independent record verifier and a highly accomplished tunneling expert and lawyer who heads a legal chapter in the International Tunneling Association (ITA), and whose credentials were accepted by the Guinness committee.

SEPTEMBER 28, 2015

Link: http://www.breakbulk.com/qatar-rail-sets-new-guinness-world-record-for-most-tbms-in-action/