Shevchenko V. Geomechanical basis for safe extraction of panels during pillar forming

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0404U001084

Thesis Registration Form

0404U001084.pdf

Applicant for

Specialization

  • 05.15.11 - Фізичні процеси гірничого виробництва

05-03-2004

Specialized Academic Board

Д 08.188.01

Institute of Geotechnical Mechanics named by N. Poljakov of National Academy of Sciences of Ukraine

Essay

When rate of longwall face advance exceeds 100 m per day, critical dimension varies between 0.17 and 0.31 of mining depth. Microseismic emission increases 2-4 times and gas emission rises up to 18-50% after destruction of the pillar when its dimension becomes critical. First act of pillar destruction has been followed by 2-4 consequent acts however additional gas emission was registered during 1-2 consequent acts. It means that excessive gas manages to escape from the pillar during first 2-3 acts of destruction.

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Files

aref.doc

Дисс_ШевченокВВ.doc

Дисс_ШевченокВВ.doc

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