Funing Pumped Storage Power Project

Two different TBMs contribute to renewable energy project construction in northern China.

Located in Qinhuangdao, Hebei Province, Funing Pumped Storage Power Station boasts a total installed capacity of 1,200 megawatts. In view of the difficult points of this project, such as intact surrounding rock, high compressive strength, high quartz content and small turning radius, CREG has customized a large-diameter TBM with an ultra-small turning radius for this project, with a designed horizontal turning radius of 90 meters.

Project Background

After the project is completed, the power station will be connected to the power grids of Beijing, Tianjin and northern Hebei through 500-kilovolt lines, undertaking tasks such as peak shaving, valley filling, frequency modulation, phase modulation and emergency standby for accidents, providing a powerful guarantee for the safe and stable operation of the ultra-high voltage smart power grid. Meanwhile, it will effectively reduce the consumption of standard coal by thermal power in the regional power system, achieving energy conservation and emission reduction.

right side

Schematic diagram of Funing Pumped Storage Power Project

The TBM has completed 2,203.8 m long tunnel drive with a maximum monthly advance rate of 300 m.

The φ9.53 m is faced with 90 m radius curve along the tunnel alignment.