1. The tailrace empties through a 100 yard tunnel that rejoins the stream after running under the mill house.

2. Flow regime and head loss of two different tailrace systems in hydropower station were investigated.

3. The converging type or shape of conduits of tailrace surge tank of multi-unit system is of important influence on flow conditions and head losses, therefore it deserves atterntion in design.

4. The tailrace surge chamber shared by two units, common in hydropower stations with diversion systems, has problems of water level fluctuation and hydraulic disturbance.

5. In tailrace tunnels of large hydropower station, a transient mixed free-surface-pressure flow may occur, which has a complex effect on the stability and transient of the power plant.

6. If the shape of tailrace pipe is changed, the pressure pulse can be removed so that the vibration of generating unit can be reduced.

7. The hoisting forms for tailrace sluice gate of power house of hydropower station are various.

8. The location of the tailrace surge tank is one of the main factors effecting on guaranteed regulation.

9. It shows that the design of tailrace tunnel with sloping ceiling is suitable and provides a hard foundation for the project design.

10. The location of the tailrace surge tank is one of the main factors effecting minimum pressure in the draft tube.

11. The vacuum degree at tailrace adit varies most significantly at the lowest downstream water level and improves gradually along with the rising of downstream water level.

12. Model experiment for tailrace tunnel of hydropower station has been conducted and the results of this method agree with the experiment very well.

13. The location of the tailrace tank is one of the main factors effecting on guaranteed regulation.

14. In simulating Sanxia, Xiangjiaba hydroelectric power stations, some useful conclusions are attained: The more the gradient of the tailrace tunnel is, the less the fluctuation of pressure is.

15. The calculated result from an example shows that the stable sectional area reduces with the increase of working head, or the decrease of the tailrace tunnel length.

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16. The method is adopted in the tail-race system dynamic simulation calculation of Baise hydropower station, and the tailrace tunnel shape is optimized, so the satisfying result is worked out.

17. The application of body fitted coordinated method for calculating flow in the tailrace river downstream of Za Xie and Feng Men Hydropower Stations is described in this paper.

18. Chapter 3:Present the theory of the analysis of stability and computation on regulation process to the system of hydropower station with surge tank of many units sharing in one tailrace tunnel.

19. This article introduces the construction management and economic performance of excavating the silt of the tailrace in detail.

20. Research shows that the results have guiding significance and reference significance for analyzing and designing similar tailrace of hydropower station.

21. By analysis of test for model of hydropower station with inclined ceiling tailrace an online data acquisition, data analysis and control method availing to virtual instruments is designed.

22. Gross head of the project between head pond and tailrace is estimated at 144.57 meter.