Research Article
Research on Construction Optimization of Three-Connected-Arch Hydraulic Underground Cavities Considering Creep Property
Table 4
Comparative table for maximum settlement value of phased excavation in different methods.
| | Construction method | First stage | Excavation complete | | Vault maximum accumulative creep value (mm) | Increment (%) |
| | Side cavity method | 13.49 | 16.26 | 3.30 | | Middle cavity method | 14.06 | 16.04 | 6.01 | | PBA method | 5.09 | 14.18 | 3.35 |
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