Research on the Deformation Characteristics and Support Technology of a Bottom Gas Extraction Roadway under Repeated Interference

Figure 4

Stress field, displacement field, and plastic zone extent around the bottom gas extraction roadway after coal roadway excavation. (a) Vertical stress distribution. (b) Horizontal stress distribution. (c) Shear stress distribution. (d) Distribution of plastic zone. (e) Horizontal displacement distribution. (f) Vertical displacement distribution.

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