PERMFILE131582

• Permit No: C1980007
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Section_Exhibit Name: EXHIBIT 60A SUBSIDENCE EVALUATION REVISED MINE PANEL LAYOUTS
• Media Type: D
• Archive: No

• TABLE OF CONTENTS
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INTRODUCTION ....................................................................................................1
PANEL LAYOUT REVISIONS ...............................................................................1
MODEL RESULTS .................................................................................................3
Section 21 Panels ........................................................................................3
Section 26 and 27 Panels ............................................................................3
REVIEW OF SUBSIDENCE EFFECTS CAUSED BY REVISED
PANEL CONFIGURATIONS BY C. RICHARD DUNRUD, P.E .............................4
Summary ......................................................................................................6
Conclusion ...................................................................................................6
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TABLE 1 -SECTION 21 PANELS .........................................................................2
TABLE 2 -SECTIONS 26 AND 27 PANELS ........................................................2
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