Fig. 9 | Scientific Reports

Fig. 9

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

Fig. 9

Stress diagram under normal mining and complex fault structure conditions. (a) The vertical, horizontal, and shear stresses of the floor decrease with increasing depth under normal mining conditions in the vertical direction. (b) Under the horst structure condition, the vertical, horizontal, and shear stresses of the floor decrease with increasing depth in the vertical direction. (c) Under the graben structure condition, the vertical, horizontal, and shear stresses of the floor decrease with increasing depth in the vertical direction. (d) Under the step fault structure condition, the vertical, horizontal, and shear stresses of the floor decrease with increasing depth in the vertical direction.

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