Molodetskyy A. Effect of true triaxial loading unequal-components and occurrence depth on physical and mechanical properties of coals

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0412U004749

Thesis Registration Form

0412U004749.pdf

Applicant for

Specialization

  • 05.15.09 - Геотехнічна і гірнича механіка

25-10-2012

Specialized Academic Board

Д 11.184.02

Essay

The thesis covers the finding of physical and mechanical behaviors of coals, depending on stress states and on occurrence depths with a view to determining of limiting state zone parameters for flat coal seams. As a result of experimental studies it was stated as follows: there are disagreements between stress and strain states for test coals; effect of stress states on physical and mechanical behaviors of coals; effect of fluids such as methane and water on physical and mechanical properties of coals; relationship of gas emission from coal with increase of rock mass temperature; variations of physical and mechanical behaviors of coals with increase of occurrence depth, and a substantiated extremum of that properties at the depth of 2.000 meters; the elaborated method of determining of limiting state zone.

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Files

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dis.doc

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