Study on the Generation Mechanism and Development Law of the Zonal Disintegration in Deep Burial Tunnels

Figure 14

Final state of the surrounding rock. (a) Displacement. (b) Tensile strength. (c) Cohesion. (d) Internal friction angle. (e) YAI. (f) FAI. (g) Plastic zone. (h) Fractured zone.

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(b)

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