Modeling of rock massif geomechanical state at gas extraction from coal seams
Authors:
About authors
- head of department National Mineral Resources University (Mining University)
Abstract
The article describes the method of modeling a coal seam stress-strain state and an enclosing rock massif when degasified. An approach to defining the model input parameters, calculated with the porosity and gas pore pressure coefficient, was shown. The importance of preliminary calculations, indicating possible coal seam shrinkage and surface subsidence was underlined. It shows formation mechanism for coal seam zones with elevated gas pressure, where gas recovery is efficient.
Область исследования:
Mining
Keywords:
coal seam
rock mass
the stress-strain state of the rocks
well degassing
high rock pressure zone
coal seam gas pressure
Funding:
None
Similar articles
Deep structure and composition characteristics of the continental earth's crust geostructures on the Russian Federation territory
2015 A. S. Egorov
A study of distillates physical and chemical properties and residues after thermodestructive and catalytic processes and their application in the mining industry
2015 N. K. Kondrasheva, O. V. Zyrianova
Synergetic changes of tribochemical properties in the heterogeneous systems containing surface modified metals
2015 A. G. Syrkov