Dependence of gas emission from the sources undermined by stope mine workings on the rocks displacement parameters
Date Issued
2018
Author(s)
Filatiev, Mykhailo
Antoshchenko, Mykola
Filatieva, Elvira
Abstract
The parameters are established in the work of the stope mine
workings and rocks displacement, which correspond to the maxima of gas
emission into the gas drainage boreholes. The angular and linear
parameters of the crustal movement and rocks displacement have been
calculated with the use of empirical dependences. These parameters
correspond to the maxima of gas emission into the gas drainage boreholes.
The obtained positive results for determining the possible areas of
maximum gas emission allow us to recommend the empirical dependences
for calculating the angles of maximum subsidence and complete
displacements at the stage of stope works development, as well as the
dimensions of the stope mine workings, at which the processes of rocks
displacement reach the earth surface. The established relations between the
gas drainage boreholes location and the rocks displacement zones with
discontinuity make it possible to design the optimal schemes of draining-
out of gases from the gas-and-coal deposits. For the first time, three
independent methods have been used to determine the changes in
dimensions of rocks displacement zones with discontinuity after the
primary main roof squeezing until the formation of stable upper boundaries
of these zones.
workings and rocks displacement, which correspond to the maxima of gas
emission into the gas drainage boreholes. The angular and linear
parameters of the crustal movement and rocks displacement have been
calculated with the use of empirical dependences. These parameters
correspond to the maxima of gas emission into the gas drainage boreholes.
The obtained positive results for determining the possible areas of
maximum gas emission allow us to recommend the empirical dependences
for calculating the angles of maximum subsidence and complete
displacements at the stage of stope works development, as well as the
dimensions of the stope mine workings, at which the processes of rocks
displacement reach the earth surface. The established relations between the
gas drainage boreholes location and the rocks displacement zones with
discontinuity make it possible to design the optimal schemes of draining-
out of gases from the gas-and-coal deposits. For the first time, three
independent methods have been used to determine the changes in
dimensions of rocks displacement zones with discontinuity after the
primary main roof squeezing until the formation of stable upper boundaries
of these zones.
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