Stresses in the massif disturbed by large-diameter wells (photoelastic study)
Abstract
One of the main ways to prevent sudden coal and gas emissions in longwall faces of single gently sloping seams 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 has been 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.
Область исследования:
(Archived) Without section
Funding:
None
References
- Bobrov I. V. Ways of safe carrying out of preparatory excavations on formations dangerous by emissions. Gosgortekhizdat, 1961.
- Pavlov A. V. System of hollow bed development with the use of support pressure for prevention of coal and gas emissions by means of large-diameter wells. Sbornik Bor'ba s vnezapnymi vybrosami v ugol'nykh shakhtakh. Gosgortekhizdat, 1962.
- Slesarev V. D. Management of Mountain Pressure in the Development of Coal Seams of the Donetsk Basin. Ugletekhizdat, 1952.
- Khodot V. V. Sudden Emissions of Coal and Gas. Gosgortekhizdat, 1961.
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