Application of Presplitting Blasting Technology in Surrounding Rock Control of Gob-Side Entry Retaining with Hard Roof: A Case Study

<div>View of gob-side entry retaining and stratigraphic column. (a) View of 7135 full mechanized coal face. (b) Comprehensive stratigraphic column.</div>

Advances in Materials Science and Engineering

fig1

Figure 1

Figure 1: Application of Presplitting Blasting Technology in Surrounding Rock Control of Gob-Side Entry Retaining with Hard Roof: A Case Study 