Wuhai Pumped Storage Power Station Project
Wuhai Pumped Storage Power Station Project
Wuhai Pumped Storage Power Station Project
Advanced TBM technology accelerates construction of hydropower station
The Φ 3.53 m TBM is used in the construction of the ventilation and safety adit, which is a key project during the preparatory period of the power station and a necessary condition for the construction of the main powerhouse. The TBM tunnelling achieves breakthrough one month ahead of schedule, setting a record of monthly advance rate of 919.042 meters for the same type of TBM in pumped storage power station field in China.
Project Background
The TBM tunnelling technology is currently one of the most advanced tunnel construction technologies in the world. Completion of the adit will further explore the geological conditions of the underground surrounding rock, optimize the construction schemes for the underground caverns, and play an important role in shortening the construction period, improving the construction environment and reducing the blasting hazards.
right side
Wuhai Pumped Storage Power Station Project Route
CREG service engineer is training the construction personnel.
The TBM is ready to bore a 3 km long tunnel.
Project Information
| Tunnelling length: | 3,000 m |
| Geology: | Primarily limestone and quartz sandstone with Class Ⅳ & Ⅴ surrounding rocks accounting for 38.5%, 4 fault zones and a 1,250m-long quartz sandstone section with quartz content of 93% |
| Contractor: | Sinhydro Bureau 6 Co., Ltd. |
TBM Parameter
| TBM type: | New type gripper TBM |
| TBM S/N: | CREC 979 |
| Boring Dia: | 3.53 m |
| Main drive power: | 900kW |
| FAT date: | May, 2022 |
| Best performance: | 50 m per day, 919 m per month. |
Project Characteristics
| The TBM features turning radius of 30 meters. |
| Special wear-resistant design enables the TBM to cope with high quartz content of the surrounding rock. |