Recently，Jointly built by China Railway Construction Heavy Industry and China Railway 15th Bureau for Suzhou Metro Line 6, the earth pressure balance shield machine accurately enters the right line section to receive the steel sleeve.，MarkedVI-TS-05 Bid Three Stations and Three Sections（Sujin station～Pinghe Road Station～Suzhan East Road Station～Humble Administrator's Garden Station section）The main project has been completed.，Lay the foundation for the completion of the whole line。

The shield machine comes out of the tunnel

Suzhou Rail Transit Line 6 starts from Suzhou New District Railway Station in the west.，Xinqing Road Station east to Suzhou Industrial Park，Total length 36.12 kilometers，Among them, the length of single line of Suzhuo shield section is 1346.9 meters，During shield construction, it is necessary to pass through the ancient city of Suzhou.、Shanghai-Nanjing intercity、Beijing-Shanghai Railway、28 major risk sources such as the Outer City River，High settlement control standard of the whole line。The single line between Pingsu District is 1586 meters long.，Three reinforced piles are located at the bottom of Pinghe Road Station.，The main reinforcement of each pile is 22 pieces of threaded steel with a diameter of 32 mm.，It puts forward higher requirements for the configuration and adaptability of shield machine。

Construction site of Suzhou Metro Line 6

Shaped Tunnel of Suzhou Metro Line 6

Important risk source of shield machine undercrossing、Construction of Large Diameter Reinforcement Pile in Tunnel by Grinding Intrusion，It is a great test of construction organization and equipment performance.。In the owner、Under the guidance of experts in the industry，China Railway Construction Heavy Industry and China Railway 15th Bureau have carried out a series of targeted designs for the shield machine.，The shield machine is provided with a reinforced soft soil cutter head、High-precision soil body pressure balance control system、Slow propulsion system、Multi-level grouting system, etc.，The geological adaptability of the shield machine is greatly improved.。

The shield machine was accepted by China Railway Construction Heavy Industry Co., Ltd.

The shield machine is used in the tunneling construction of crossing an important risk source.，The settlement shall be controlled within 3 mm.，The goal of safe underpass is achieved.，At the same time, it has created a new record of grinding large-diameter reinforcement piles in shield tunneling in China.。