Table 1. Pressure amplitudes (mm of water column) measured by different models at the stilling basin location.
Model |
Discharge type |
Pressure amplitude |
Before construction |
Limited discharge only; Spillway in weak rock |
30 mmwc |
Stilling basin floor at 226 |
Full discharge all spillways, 400m3/sec |
340 mmwc |
Stilling basin floor at 224 |
Full discharge all spillways |
100 mmwc |
Stilling basin floor at 223 |
Full discharge all spillways |
60 mmwc |
Stilling basin floor at 222 |
Full discharge all spillways |
50 mmwc |
Stilling basin floor at 221 |
|
50 mmwc |