Recently, the right-line shield of the section between Wenhua Square Station and Gongnongda Road Station of the Changchun Metro Line 5-6 bid undertaken by Chengtong Company of China Railway No.2 Engineering Group successfully passed the hundred-ring acceptance. The Municipal Safety Supervision Station, the Metro Company, the design, survey, China Railway general contracting department, third-party monitoring, supervision and other units attended the acceptance meeting.

The acceptance team inspected the formed tunnel at the construction site, and examined in detail the segment assembly quality of the formed section as well as relevant materials. At the acceptance meeting, the project department introduced the specific situation of the shield tunneling on the right line of the section, gave a detailed report on shield machine driving attitude control, pressure control, segment assembly, waterproofing, monitoring and other aspects, and made a key report on the main control points. The acceptance personnel recognized the current construction situation of the project, especially affirmed the management results of the project department in segment assembly quality and other aspects, and unanimously agreed that the hundred-ring construction of the shield on the right line of the section between Wenhua Square Station and Gongnongda Road Station passed the acceptance.

Up to now, the shield on the right line of the section between Wenhua Square Station and Gongnongda Road Station has completed 379 meters of tunneling and 289 rings of segment assembly. All parameters of the shield machine are normal, and the tunneling is proceeding smoothly. Next, the project department will continue to summarize experience, optimize tunneling parameters, strengthen project management, and ensure high-quality completion of subsequent construction tasks.