Fig. 13 | Scientific Reports

Fig. 13

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

Fig. 13

Stress distribution of floor under the step fault structure condition. Compared with that under normal mining conditions, in the horizontal direction, the horizontal stress is significantly greater than that in normal mining conditions, and the pressure ball caused by floor pressure is symmetrically distributed. The floor shear stress of the step fault structure decreases. The shear stress on the small-dip fault side is lower than that on the side of the large-dip fault under the step fault structure condition.

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