The first shield tunnel section of hefei Line 4 southern extension was completed

The reporter learned from Hefei Railway Group that on January 23, the left line of shield tunnel section from Xiaolongshan Station to Wanfoshan Road Station of the southern extension line of Rail transit Line 4 was successfully transfixed, which is the first transfixed single line shield tunnel section of the southern extension line of rail line 4.Up to now, the top of 6 main structures of 8 stations of the Southern extension line of Line 4 has been sealed, 4 of the 5 elevated sections have been connected by double lines, and 1 of the 8 shield single-line sections has been connected by double lines.(Reporter Wang Junchao)

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