′거대한 터널 굴착기′…러시아 모스크바 지하철 공사 현장

MOSCOW, RUSSIA - JULY 16, 2019: A tunnel boring machine arrives at the construction site of Nizhegorodskaya Station at the crossing of Line 11 (Bolshaya Koltsevaya) and Line 15 (Nekrasovskaya Line) of the Moscow Underground (Metro). Anton Novoderezhkin/TASS

MOSCOW, RUSSIA - JULY 16, 2019: A construction worker on the cutting shield of a tunnel boring machine after it finished excavating a 10m tunnel between Aviamotornaya Station (Line 8) and the construction site of Nizhegorodskaya Station at the crossing of Line 11 (Bolshaya Koltsevaya) and Line 15 (Nekrasovskaya Line) of the Moscow Underground (Metro). Anton Novoderezhkin/TASS

MOSCOW, RUSSIA - JULY 16, 2019: Construction workers, officials, and journalists during the arrival of a tunnel boring machine at the construction site of Nizhegorodskaya Station at the crossing of Line 11 (Bolshaya Koltsevaya) and Line 15 (Nekrasovskaya Line) of the Moscow Underground (Metro). Anton Novoderezhkin/TASS

MOSCOW, RUSSIA - JULY 16, 2019: Construction workers during the arrival of a tunnel boring machine at the construction site of Nizhegorodskaya Station at the crossing of Line 11 (Bolshaya Koltsevaya) and Line 15 (Nekrasovskaya Line) of the Moscow Underground (Metro). Anton Novoderezhkin/TASS

MOSCOW, RUSSIA - JULY 16, 2019: Construction workers, journalists and officials celebrate as a giant tunnel boring machine finishes excavating a 10m tunnel between Aviamotornaya Station (Line 8) and the construction site of Nizhegorodskaya Station at the crossing of Line 11 (Bolshaya Koltsevaya) and Line 15 (Nekrasovskaya Line) of the Moscow Underground (Metro). Anton Novoderezhkin/TASS

MOSCOW, RUSSIA - JULY 16, 2019: Construction workers, journalists and officials celebrate as a giant tunnel boring machine finishes excavating a 10m tunnel between Aviamotornaya Station (Line 8) and the construction site of Nizhegorodskaya Station at the crossing of Line 11 (Bolshaya Koltsevaya) and Line 15 (Nekrasovskaya Line) of the Moscow Underground (Metro). Anton Novoderezhkin/TASS

MOSCOW, RUSSIA - JULY 16, 2019: Construction workers, officials, and journalists during the arrival of a tunnel boring machine at the construction site of Nizhegorodskaya Station at the crossing of Line 11 (Bolshaya Koltsevaya) and Line 15 (Nekrasovskaya Line) of the Moscow Underground (Metro). Anton Novoderezhkin/TASS

MOSCOW, RUSSIA - JULY 16, 2019: Construction workers and officials celebrate as a giant tunnel boring machine finishes excavating a 10m tunnel between Aviamotornaya Station (Line 8) and the construction site of Nizhegorodskaya Station at the crossing of Line 11 (Bolshaya Koltsevaya) and Line 15 (Nekrasovskaya Line) of the Moscow Underground (Metro). Anton Novoderezhkin/TASS

MOSCOW, RUSSIA - JULY 16, 2019: A tunnel boring machine arrives at the construction site of Nizhegorodskaya Station at the crossing of Line 11 (Bolshaya Koltsevaya) and Line 15 (Nekrasovskaya Line) of the Moscow Underground (Metro). Anton Novoderezhkin/TASS