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Research progress in the mining technology of the slowly inclined, thin to medium thick phosphate rock transition from open-pit to underground mine

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25 mag 2021
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Fig. 1

Metal and non-metal open pit to underground mining research in recent years.
Metal and non-metal open pit to underground mining research in recent years.

Fig. 2

Similar material simulation experiment of mining and pillar recovery.
Similar material simulation experiment of mining and pillar recovery.

Fig. 3

Subsidence displacements after the first (a), third (b), fifth (c), sixth (d) excavation steps of the similar material model.
Subsidence displacements after the first (a), third (b), fifth (c), sixth (d) excavation steps of the similar material model.

Fig. 4

FLAC3D model.
FLAC3D model.

Fig. 5

Deformation and Failure Characteristics of the Roof for the 3-m Ore Pillars.
Deformation and Failure Characteristics of the Roof for the 3-m Ore Pillars.

Fig. 6

Deformation and Failure Characteristics of the Roof for the 5-m Ore Pillars.
Deformation and Failure Characteristics of the Roof for the 5-m Ore Pillars.
Lingua:
Inglese
Frequenza di pubblicazione:
1 volte all'anno
Argomenti della rivista:
Scienze biologiche, Scienze della vita, altro, Matematica, Matematica applicata, Matematica generale, Fisica, Fisica, altro