TECO Electric Co., Ltd. and Tianhe Shield to realize the first double line of Zhengzhou Metro Line 4

TECO Dongyuan Motor cooperates with Zhongjiao Tianhe (a well-known domestic shield machine manufacturer). Among the 161-gauge and 6350 mm earth pressure balancing shield machines independently developed by Zhongjiao Tianhe, TECO Motor is the main drive motor for the cutter head Configuration. On April 27, this EPB shield machine successfully passed through the inner ring road of Zhengzhou Metro Line 4-Xinrong Road Station's left line tunnel, realizing the first double-line penetration of Zhengzhou Metro Line 4.

The tunnel strata in this section are 2-4 fine sand, 3-1 silt and 3-4 fine sand. They have poor geological stability, poor thixotropy and poor mobility, and need to pass through high-voltage cable tunnels, Zhengzhou North Third Ring Tunnel and Long Lake, with a water surface of about 100 meters wide, has a high construction risk.

The shield cutterhead is an important part of shielding equipment and the main working device for tunneling operations. TECO Dongyuan Motor is the main drive motor configuration of the cutterhead. It plays an important role during construction. Tianhe Shield has created a daily tunneling Gundam The good results of the 13th ring (19.5 meters) verified the reliable quality, stable performance and advanced technology of TECO. TECO warmly congratulates this and is determined to make persistent efforts and join hands with partners to create higher value in the shield machine industry!

TECO Dongyuan Motor and Tianhe Shield have not only cooperated and win-win in the Zhengzhou subway project. In the Tianhe Beijing subway project, TECO Dongyuan Motor’s positive response and on-site service cooperation have also been affirmed and appreciated, and received The letter of thanks from the Beijing project team is as follows: