Control of the Internal and External Staggered Distance of Coal Mining Face to the Water-Conducting Fissures in the Overlying Strata of the Near Coal

<div>Water flowing fractures development characteristics of overburden rock with the different internal dislocation of shallow-buried short-distance coal seams. (a) After the upper seam is mined. (b) Internal staggered distance of 60 m. (c) Internal staggered distance of 80 m.</div>

Advances in Civil Engineering

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Figure 5

Figure 5: Control of the Internal and External Staggered Distance of Coal Mining Face to the Water-Conducting Fissures in the Overlying Strata of the Near Coal 

Figure 5 | Control of the Internal and External Staggered Distance of Coal Mining Face to the Water-Conducting Fissures in the Overlying Strata of the Near Coal 