Study on Surrounding Rock Deformation Mechanism and Control of Roadway with Large Section and Extra-Thick Top Coal

<div>Simplification and calculation of roadway surface layer. (a) Simplified model of roof surface layer. (b) Calculation model of secondary statically indeterminate beam.</div>

Shock and Vibration

fig11

Figure 11

Figure 11: Study on Surrounding Rock Deformation Mechanism and Control of Roadway with Large Section and Extra-Thick Top Coal 