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The Scientific World Journal
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2013
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Article
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Fig 14
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Research Article
Model Test of Anchoring Effect on Zonal Disintegration in Deep Surrounding Rock Masses
Figure 14
Excavation procedure of model tunnels.
(a)
ā Excavation
(b)
Applying anchor
(c)
Grouting
(d)
Anchor finished
(e)
Next excavation step
(f)
Breakthrough