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Hybrid finite discrete element modelling of blast induced excavation damaged zone in the top heading of deep tunnels

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Figure

Fig. 1 - Relationship between the bonding stress and opening/sliding displacement under n
Fig. 2 - Geometrical and numerical model for uniaxial compression test
Fig. 4 - Force-loading displacement curve during the uniaxial  compression test
Fig. 5 - Geometrical model and numerical model for top heading
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