Wedge Instability Model Improvement of Shield Tunnel Excavation Face under Inclined Surface

<div>The force analysis of the wedge: (a) plane diagram of wedge force analysis and (b) three-dimensional schematic diagram of wedge force analysis.</div>

Advances in Civil Engineering

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Figure 5

Figure 5: Wedge Instability Model Improvement of Shield Tunnel Excavation Face under Inclined Surface 