Key Techniques and Risk Management for the Application of the Pile-Beam-Arch (PBA) Excavation Method: A Case Study of the Zhongjie Subway Station

<table>Mechanism of the feet-lock bolt (after [<a href="/journals/tswj/2014/275362/#B23">2</a>]).</table>

The Scientific World Journal

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Figure 12

Figure 12: Key Techniques and Risk Management for the Application of the Pile-Beam-Arch (PBA) Excavation Method: A Case Study of the Zhongjie Subway Station 

Figure 12 | Key Techniques and Risk Management for the Application of the Pile-Beam-Arch (PBA) Excavation Method: A Case Study of the Zhongjie Subway Station 