The TBM tunnel on the right line of Chongqing Metro Line 6 East Extension Section's heavy and long section has been successfully completed
According to Chongqing Communications Development Investment Group, on July 16, as the TBM cutterhead broke through the ground, the right TBM tunnel of the Chongqing East railway station Changsheng Laojie station section of the east extension of Chongqing Metro Line 6 (hereinafter referred to as the heavy and long section) was successfully completed.Source: Hualong...