Engineering Mechanics

International Conference

Proceedings Vol. 20 (2014)


ENGINEERING MECHANICS 2014

20th INTERNATIONAL CONFERENCE
May 12 – 15, 2014, Svratka, Czech Republic
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Editors: Vladimír Fuis

Copyright © 2014 Brno University of Technology Institute of Solid Mechanics, Mechatronics and Biomechanics

ISBN 978-80-214-4871-1 (printed)
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)

list of papers scientific commitee

PRINCIPLES OF VIBRATION IMPACT ON CRACKED METHANEBEARING COAL SEAM
Pavlenko M.V.
pages 503 - 506, full text

The present article deals with the results of research into vibration impacts on a low-permeable coal seam. A method is described of how to create additional systems of cracks for array degassing to ensure its safe preparation. The result of vibration impact of on the coal seam was an increase in internal surface and pore volume of coal. Experimental vibration impacts on the coal seams have shown an increase in its absorption capacity, which ensured the extra impregnation of micro-pore volume of working fluid. With resonance system, the amplitude of the pressure fluctuations may significantly exceed its static value; for its assessment, however, it is necessary to know the characteristics of fluid viscosity, as they will determine the value of this amplitude. A proposed method of vibration impact is used to excite waves in a well filled with fluid, to transfer energy to the coal seam and to create new systems of formation of additional cracks for methane release from remote parts of coal seam.


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Text and facts may be copied and used freely, but credit should be given to these Proceedings.

All papers were reviewed by members of the scientific committee.


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