Study on Presplitting Blasting the Roof Strata of Adjacent Roadway to Control Roadway Deformation

<div>Vertical stress distribution of the roof strata of the 72908 haulage roadway (a) without presplitting blasting and (b) with presplitting blasting.</div>

Shock and Vibration

fig10

Figure 10

Figure 10: Study on Presplitting Blasting the Roof Strata of Adjacent Roadway to Control Roadway Deformation 