PERMFILE134820

• Permit No: C1981018
• IBM Index Class Name: Permit File
• Doc Date: 5/13/2002
• Section_Exhibit Name: R2P2 MODIFICATION OF LME AND R2P2 08/91
• Media Type: D
• Archive: No

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potential in the D Seam in that azea. The B Seam reaches maximum thickness in leases C-8424 and
C-8425 and is mineable throughout these areas.
' 4.2.1 Mine Development Plates 7 and 8 are the mine plan and development sequence far the D Seam
and the B Seam, respectively. initial mining began with the D-Seam portals. Underground access to
the coal seam has been provided by two declined rock tunnels: one double-compartment decline and
one single-compartment decline. The double-compartment decline is divided by a steel divider. The
' upper compartment contains the coal conveyor belt, and the lower compartment is for transportation of
men and materials, and is used for intake ventilation. The single-compartment slope, also called the
' ventilation slope, was used solely for return ventilation through the mine fan. However, in November
1990 the mine fan was reversed as an intake fan and the ventilation slope is used as an intake for
ventilation and the East Portal previously used as intake is now used as exhaust. The double
' compartment slope is approximately 500 feet long driven on a decline of 14 degrees to intersect the coal
seam. The ventilation slope is driven on a decline of 16 degrees.
Bottom development was completed in the area where the two slopes intersected the coal. The West
Mains were developed to a point where development of the South Submains could begin. As of this
' writing, luly 1991, the South Submains, East Portals, about 2300 feet of South Mains Right, about 6800
feet of the East Mains and gateroads for longwall panels LWl through LWS have been developed. The
tailgate for the sixth Longwall Panel (LW6) is being developed. Longwall panels LWl, LW2, and LW3
have been mined out. The LW4 panel is being mined. Mine development and the production sequence
is discussed in Section 4.2.5 and is shown on Plates 7 and 8.

The B Seam development will start with the mining of a four-entry slope from the West Mains in the
' D Seam to the West Mains in the B Seam. A network of main entries will develop the B Seam: East
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Right and South Main Lefr in the east-west direction. A series of gate entries will develop various
' longwall panels. The West Mains will be extended south until it daylights at the B Seam outcrop.
Initially, the B Seam coal will be transported via the slope to the D Seam West Mains. Once the coal
t volume mined from the B Seam reaches a sufficient level, the coal will be transported via B Seam West
talled
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at a later date.
'
Figure 4-1 shows a typical six-entry main road that will be developed in the D and B Seams. The
' pillaz and entry width dimensions vary according to the conditions encountered.
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