A diversion tunnel plugging structure and plugging method
By adopting a direct-connection sealing structure in the diversion tunnel of the upper reservoir of the pumped storage power station, the sealing process was simplified, the problems of complex construction and high investment were solved, and a fast and safe sealing effect was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- GUANGDONG ELECTRIC POWER PLANNING SURVEY & DESIGN INST
- Filing Date
- 2026-04-28
- Publication Date
- 2026-07-17
AI Technical Summary
In existing technologies, the sealing structure of the diversion tunnel of the upper reservoir of pumped storage power stations is complex, the construction period is long and the project investment is large. Traditional solutions are difficult to construct in narrow sites and with limited transportation conditions.
A diversion tunnel sealing structure is adopted, including a lining end face, a gate body, a locking assembly, a water-stopping assembly, and auxiliary pipelines. The gate body is directly connected to the lining end face, and a locking assembly and a water-stopping assembly are installed. This eliminates the need for structures such as transition sections, gates, and hoists in traditional sealing methods, and uses auxiliary pipelines to balance water pressure.
It simplifies the sealing structure, shortens the construction period, reduces project investment, improves construction safety and stability, eliminates the risk of gas explosion, and is suitable for the sealing needs of the upper reservoir of pumped storage power stations.
Smart Images
Figure CN122406705A_ABST