Analysis of Deep Foundation Pit Pile-Anchor Supporting System Based on FLAC3D

Table 4

Design parameters of the crown beam and waist beam.

Serial number	Position	Sectional dimension/mm	Main reinforcement	Prestressed strands rounding the opening	Concrete strength
1	Top beam	900500	8Φ20	φ6.5@200	C35
2	Middle beam	25Btwin-i girder