Experimental Investigation on the Influence of Regional Concrete Spalling on Shield Tunnel Segments

<div>Segment circumferential internal force diagram at elastic-plastic demarcation. (a) Segment circumferential axial force diagram. (b) Segment circumferential bending moment diagram.</div>

Advances in Civil Engineering

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Figure 12

Figure 12: Experimental Investigation on the Influence of Regional Concrete Spalling on Shield Tunnel Segments 