On June 4th, the world's first large diameter and ultra-small turning TBM (hard rock tunnel boring machine) "Funing", specially designed by China Railway Equipment Group for the pumped storage power station project in funing, Hebei, was successfully rolled off the production line of China Railway Equipment Tianjin Co., Ltd.

The equipment is suitable for the construction of traffic tunnel and ventilation and safety tunnel in funing pumped storage power station, with a total length of 2226.7 meters. The excavation diameter is 9.53 meters, the design turning radius is 90 meters, the total length of the machine is 85 meters, and the total weight is 1700 tons. The application of Funing in the field of pumped storage power station has created a pioneer in the development of TBM with large diameter and ultra-small turning radius, marking another major technical breakthrough in the development of hard rock tunneling machine with ultra-small turning radius in China, and also providing a new construction scheme for the construction of large section tunnel for pumped storage power station.

Funing Pumped Storage Power Station is located in Funing District, Qinhuangdao City, Hebei Province, with a total installed capacity of 1200MW and a rated power generation head of 433m. With a total investment of 8.059 billion yuan, after the completion of plans in 2027 to 500 kv line access to the Beijing and tianjin and hebei north grids, bear the peak shaving and valley filling, frequency modulation, phase modulation, and emergency backup task, such as for uhv provide powerful guarantee safe and stable operation of the smart grid, at the same time can effectively reduce the regional power system in thermal power of standard coal consumption, realize the energy conservation and emissions reduction, Improving the atmospheric environment.