Railway Construction Heavy Industry "Jianshun" Slurry Balance Shield Machine Offline, Helping Shanghai Rail Transit Construction

Recently，Slurry Balance Shield Machine Jointly Built by Railway Construction Heavy Industry and Shanghai Foundation“Jianshun No”Offline in the primary industry park of Railway Construction Heavy Industry。The excavation diameter of the equipment is about 9.3 meters，The total weight is about 1075 tons，It will be used in the airport connecting line of Shanghai rail transit city line.JCXSG-Construction of Tunnel Works of Bid 13。

“Jianshun No”Slurry balance Shield Machine

The shield section of this project is 3013 meters long.，The maximum buried depth of the tunnel floor is 51 meters.，Strength of the shield、The whole machine requires high sealing reliability.。The tunnel passes through the south turning ramp.、Shenjiahu Expressway、Airport Satellite Hall、S1~T4 MRT section tunnels and other important buildings，High requirement on the precision of surface subsidence control。Secondly，The whole section of the long distance section of the Project is grayish yellow.~Driving in gray silty sand layer，High requirements on the wear resistance of the cutter head, the cutter and the whole machine。

In view of the key and difficult points of the project，The R & D team of China Railway Construction Heavy Industry Co., Ltd.“Jianshun No”The slurry balance Shield Machine has been designed.。Equipped with high-precision gas-liquid pressure balance control system、Intelligent excavation management system、High pressure-bearing main drive and shield tail seal、Automatic measurement of shield tail clearance.，Greatly improve the geological adaptability of shield machine，Ensure the safety of shield tunnel construction、Efficient。

Because“Jianshun No”Short online assembly cycle，Detailed assembly and commissioning plans have been developed by CRCHI.，In the production process, the former process and the latter process should be closely linked up.，Strict implementation of the process for each procedure，Guarantee product quality，Finally made sure“Jianshun No”Progress quality“Go hand in hand”，The performance of the equipment has reached the customer's target.。

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