Current through Vol. 41, No. 13, March 15, 2024
(a)
No entry, slope, crosscut or panel shall be driven more than twenty (20) feet
wide when roof bolts are the primary roof supports unless a greater distance is
approved by the Advisory Council.
(1) The
Advisory Council shall approve all mining plans and shall advise the Mining
Commission of their decision.
(2)
Diesel powered equipment shall be maintained according to manufacturers
recommendations but shall be serviced at a minimum of each shift or eight
hours, whichever is shorter.
(3) No
diesel powered equipment shall be taken into any mine, slope or shaft that does
not have a working and properly serviced scrubber and has been Bureau of Mines
approved for use in gassy mines.
(4) Any time the scrubber does not remove the
fumes or odors from the fuel, the diesel powered equipment must be removed from
service.
(b) Booster
fans shall not be used underground. When sinking shafts or slopes for the
purpose of reaching or mining coal or asphalt, the laws, rules and regulations
governing underground coal mining shall apply unless waived by the Advisory
Council.
(c) Bathing and toilet
facilities shall be provided and maintained in a sanitary condition at all
mines unless a waiver is granted by the Oklahoma Mining Commission.
(d) Coal dust, float coal dust, loose coal
and other combustible materials shall not be permitted to accumulate in any
mine.
(1) All crosscuts must be kept
rock-dusted. All areas where coal has been extracted shall be rock-dusted to
within forty (40) feet of the face.
(2) Rock-dust shall be applied to the floor,
ribs and roof and shall be no less than sixty-five (65) percent of
incombustible materials. Where methane is present the incombustible content
shall be increased one (1) percent for each 0.1 percent of methane
gas.
(3) The percentage of
incombustible material in the returns shall be no less than eighty (80)
percent. Where methane is present the incombustible content shall be increased
0.4 percent for each 0.1 percent of methane gas.
(4) Incombustible material requirements may
not be applied if natural moisture can be squeezed from the accumulated
dust.
(e) Water shall
not be allowed to accumulate in any travelways or escapeway.
