Left-line Shield Machine of Zheng-Yan Section, Bid Section 15 of Beijing Subway Line 22 Successfully Launched

Recently, with the cutterhead of the "Kuayue" shield machine slowly rotating, the left-line shield machine for the No. 1 Air Shaft–No. 2 Air Shaft portion of the Zheng-Yan Section, Bid Section 15 of Line 22, was successfully launched. The section has a total length of 3,467 meters. The shield machine was launched from the east end of the left line at No. 1 Air Shaft, and will bore from west to east, crossing Youdi Road and the Chaobai River into the Yanjiao area of Hebei Province, then turning into Kangcheng Avenue, and will be received at No. 2 Air Shaft within the section.