Evolution Analysis of Microseismic Events before and after Mining through Large-Scale Weak Zone with High Confined Water

<div>Distribution profile of microseismic events in April. a: 2# coal seam; b: Yeqing limestone; c: Shanfuqing limestone; d: Daqing limestone; e: 9# coal seam; f: Ordovician limestone; g: Ordovician limestone (50 m); h: Ordovician limestone (100 m).</div>

Advances in Civil Engineering

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Figure 13

Figure 13: Evolution Analysis of Microseismic Events before and after Mining through Large-Scale Weak Zone with High Confined Water 