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• <br />• <br />..J <br />W <br />Z <br />Q <br />a <br />N <br />Z <br />W <br />U~ <br />a <br />0 <br />a <br /> <br />~- ROOMS ~ INITIAL PANEL -~ <br /> <br />. ......... ......... <br />.............. ^ a ^ ^ <br /> <br /> <br />......... ........: 3 3 <br />.. <br />. '> > <br />a <br />~ .................... > .e .e <br />3 ? a < 3 <br />~ 3 3 <br />BARRIER ~ ~ w w Q <br />PILLAR ~ i a a F <br />o Z Z <br />~ ^ ^ ^ ^ ^ ^ ^ <br />~ ^ ^ ^ 0 ^ ^ ^ <br />~ ^ ^ ^ ^ ^ ^ ^ <br />~ ^ ^ ^ ^ ^ ^ ^ <br />a <br />.~ <br />.~ <br />a <br />a <br />W <br />Q <br />a <br />m <br />PANEL LIMIT <br />MINING SEQUENCE: <br />PANEL IS DEVELOPED TO DESIGNED <br />LIMIT, THEN ROOMS ARE MINED <br />TO ONE SIDE, LEAVING A BARRIER <br />PILLAR. <br />Z <br />W <br />a <br />O <br />W <br />W <br />D <br />J <br />W <br />Z <br />Q <br />a <br />PILLAR RETREAT COMMENCES <br />ACROSS ONE OR TWO ROWS OF <br />PILLARS, STARTING AT THE LEFT <br />OR RIGHT EDGE OF THE PANEL. <br />THE SEQUENCE OF MINING ROOMS <br />AND RETREATING PILLARS IS <br />REPEATED THROUGH THE PANEL, <br />STOPPING AT THE PILLAR RETREAT <br />LIMIT. <br />PILLAR RETREAT LIMIT <br />RETURN AIRWAY <br />INTAKE AIRWAY 6 TRAVELWAY <br />l~ <br />INTAKE AIRWAY &TRAVELWAY <br />CONVEYOR ENTRY <br />RETURN AIRWAY <br />MAIN/SUBh~A1N ENTRIES <br /> <br />NO SCALE <br />FIGURE 2.05.3-2 <br />PAI'~EL DEVELOPMENT AND RETREAT MINING <br />TYPICAL PLAN <br />FILE: 205302.CiCD 02/06 <br />2.05.3-5 <br />Revised 5/01/07 <br />