Advances in Civil Engineering / 2020 / Article / Fig 15

Research Article

Assessment of the Excavation Damaged Zones in the Surrounding Rock of an Underground Powerhouse under High In Situ Stress Using an Acoustic Velocity Detecting Method

Figure 15

Depths of EDZs distributed in typical measured sections of Houziyan hydropower project: (a) section 0 + 008.8 m and (b) section of 0 + 041.3 m.
(a)
(b)

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