Weakening effects of hydraulic fracture in hard roof under the influence of stress arch
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DOI: 10.1016/j.ijmst.2017.12.024
Abstract: Abstract For the problem of hydraulic fracture propagation when weakening the hard roof in fully mechanized top-coal caving stope of ultra-thick coal seam, based on the stress arch theory and the fracture mechanics, a two-dimensional… read more here.
Keywords: hard roof; hydraulic fracture; stress arch; fracture ... See more keywords