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REP46097
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REP46097
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Last modified
8/25/2016 12:49:07 AM
Creation date
11/27/2007 10:48:17 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1982056
IBM Index Class Name
Report
Doc Date
3/1/1994
Doc Name
SUBSIDENCE MONITORING REPORT JULY-DECEMBER 1993 CYPRUS TWENTYMILE COAL CO FOIDEL CREEK MINE
Permit Index Doc Type
SUBSIDENCE REPORT
Media Type
D
Archive
No
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4.2 Monitoring Line 1000 (Centerline, Start Profile for 1LLW) <br />• As can be seen from the attached table and figures, actual subsidence is in close agreement with the <br />predicted values contained in Table l3 of the permit. A comparison of the key subsidence parameter <br />values is provided below: <br />Maximum Subsidence (ft): 5.3 (actual) 5.6 (predicted) <br />Draw Angle: 16° (actual) 15° (predicted) <br />S/m (max subsidence/extracted height) 0.61 (actual) 0.64 (predicted) <br />4.3 Monitoring Line 4000 <br />As can be seen from the attached table and figures, actual subsidence is in close agreement with the <br />predicted values contained in the pemtit. A compazison of the key subsidence parameter values is <br />provided below: <br />Maximum Subsidence 2LLW (ft): 4.1 (actual) 4.4 (predicted) <br />(S/m - 2LLW) 0.47 (actual) 0.51 (predicted) <br />Maximum Subsidence ILLW (ft): 4.9 (actual) 5.6 (predicted) <br />(S/m) -ILLW) 0.56 (actual) 0.64 (predicted) <br />Draw Angle (ILLW): 16° (actual) 23° (predicted) <br />Subsidence predictions, corresponding to Monitoring Line 4000, are contained in Table 12 and Drawing <br />• l of the original permit. <br />• <br />Cyprus Twenrymile 2 Semi-Aonual Subsidence Report <br />
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