On August 28, the last shield tunneling machine in shenmei section of shenzhen metro line 6 went out successfully, marking the successful completion of the tunnel.

On the evening of August 27, the shield tunnel between longmen avenue station and luoyang longmen station comprehensive transportation hub subway station of the first phase of luoyang metro line 2 was successfully completed, marking the third tunnel in the first phase of luoyang metro line 2 to realize the dual line connection.

On August 27, after more than 100 days of hard work by all the constructors, guangzhou metro line 8 from fenghuang xincun to cultural park completed the completion of the short track, as the rail laying machine moved the last group of steel rails into the precise landing position at the connection point. In order to successfully complete the construction task, guangzhou metro introduced three construction "magic tools", such as the new "tire subway paving machine", "standard rail interchange subway concrete spreading car" and "new energy rail car", which have overcome four difficulties successively.

Shanghai, Aug. 24 (xinhua) -- the first domestically made large-diameter mud and water balance shield machine "jiangpu" entered Shanghai on Aug. 24 and started its construction smoothly. This equipment is jointly developed by China railway construction heavy industry and Shanghai foundation company, and has completely independent intellectual property rights. The excavation diameter of the equipment reaches 11.63m, the total weight is about 1900t, and the installed power is 3661kW.

August 21, nanchang metro line 3 liantang depot access line shield tunnel section of the lower line successfully completed.

August 21, nanchang metro line 3 liantang depot access line shield tunnel section of the lower line successfully completed.