Stresses in the massif disturbed by large-diameter wells (photoelastic study)
Abstract
One of the main ways to prevent in longwall faces of single gently sloping seams of sudden coal and gas emissions is to weaken the coal mass with large-diameter advanced boreholes. These emissions in recent years in the mines of Donbass exceed 25% of all emissions. Despite the relevance of the method until recently there is no universally recognized methodology for determining the density of the protective network of wells. The radius of influence of wells is calculated according to the formulas of V. V. Khodot, A. V. Pavlov or according to the method of MacNII ...
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References
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- Khodot V. V. Sudden Emissions of Coal and Gas. Gosgortekhizdat, 1961.