Table 1 Value of \(\varphi_{\max }\) under different conditions
\(\Phi\)\\(k_{C}\) | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|
60° | 136° | 131° | 124° | 117° | 109° | 100° |
70° | 149° | 144° | 138° | 130° | 119° | 105° |
80° | 164° | 161° | 156° | 150° | 139° | 120° |
85° | 171° | 170° | 168° | 164° | 156° | 139° |