In recent days, the Conference and Exhibition of the 7th International Tunneling and Underground Space Association (ITA) Tunneling Awards 2021 was held virtually, selecting seven winners among the 24 competing projects and individuals.
The Large-diameter shield tunnel engineering project in karst strata of sea area in the Barracuda Bay, a full-line control project of Dalian Metro Line 5, won the award of Project of the Year. The project was invested by the China Railway Group Limited (CREC), designed by China Railway Northern Investment Group and constructed by the First Engineering Bureau of CREC.