Advances in Civil Engineering / 2019 / Article / Fig 11

Research Article

Study on the Decoupled Charge Effect in Deep-Hole Cumulative Blasting of Coal Seam

Figure 11

Structure of cumulative blasting and sketch of boreholes in the investigated area. (a) Structure of cumulative blasting in hole. (b) Profile of I-I. (c) Layout of blasting and gas extraction holes in field test.

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