| 方案 | 上限(m) | 下限(m) | 超2%标准风险率(%) | 超5%标准风险率(%) | 超10%标准风险率(%) | 
| 设计方案 | 144.5 | 144.5 | 2 | 5 | 10 | 
| 1 | 144.9 | 144.5 | 2 | 5 | 10 | 
| 2 | 145.7 | 144.5 | 2 | 5 | 10 | 
| 3 | 146.5 | 144.5 | 2.1038 | 5.2932 | 10.2524 | 
| 4 | 147.5 | 144.5 | 2.3008 | 5.7630 | 10.8872 | 
| 5 | 148.5 | 144.5 | 2.5099 | 6.0558 | 11.4609 |