Ninghai Pumped Storage Power Project

Introduction of TBM method to vertical shaft construction

Application of the concept of tunnel excavation to vertical shaft construction, realizing the mechanized, intelligent and factorial construction of large blind vertical shaft construction.

Project Background

The full-face excavation mechanical synchronous mucking system has higher efficiency and lower energy consumption compared with traditional mucking methods such as the slurry and vacuum ones, and has successfully solved the international problem of synchronous construction of excavation and mucking. The pioneer shaft remote control system, has improved the safety and comfort of shaft construction.

right side

Vertical section of the ventilation shaft at Ninghai Pumped Storage Power Station

The SBM has bored 4.82 m per day, much more efficient than the traditional method.

The SBM has completed 198 m deep tunnel and achieved breakthrough.