Fig. 11 | Scientific Reports

Fig. 11

From: Theoretical and numerical investigations of the floor failure characteristics affected by coal mining near complex fault structures

Fig. 11

Stress distribution of floor under the horst structure condition. Compared with that under normal mining conditions, in the horizontal direction, the horizontal stress increases by approximately 20%, the tensile stress area of the goaf decreases, and the pressure ball caused by the floor pressure presents a symmetrical distribution. The shear stress on the small-dip fault side decreases, whereas the shear stress on the cell side of the large-dip fault increases under the horst structure condition.

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