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

<div>Horizontal stress distribution in the bottom gas extraction roadway roof and floor. The longitudinal axis represents the surface of roof (floor) of the bottom gas extraction roadway.</div>

Advances in Civil Engineering

fig9

Figure 9

Figure 9: Research on the Deformation Characteristics and Support Technology of a Bottom Gas Extraction Roadway under Repeated Interference 