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2011-09-26_PERMIT FILE - C1981012 (24)
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2011-09-26_PERMIT FILE - C1981012 (24)
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Last modified
8/24/2016 4:43:23 PM
Creation date
11/3/2011 11:38:18 AM
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Template:
DRMS Permit Index
Permit No
C1981012
IBM Index Class Name
Permit File
Doc Date
9/26/2011
Section_Exhibit Name
EXHIBIT 08 HYDROLOGY AND GEOLOGY INFORMATION
Media Type
D
Archive
No
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<br />30 <br />Table 3 Summary of Parameters Used For Inflow Calculations <br /> To Maxwell Mine <br /> <br /> T K b <br /> <br />Case ft2/d a <br />ft/d a <br />ft <br /> I 0.56 7..1x104 225 <br /> II 1.98 " <br /> III 1.27 " <br /> Computation of Inflows <br /> The calculation of inflows was made for each of the above three cases <br />j using the roof area and perimeter length of the current Maxwell Mine and of <br /> the projected Maxwell Mi ne. An example computation is provided for the <br /> projected mine using the data for Case I II. The results of all computations <br /> are summarized in Table 4. <br /> Exam le <br /> ( 1.27) 225 1/2 = 1166 ft. <br /> 8 = <br />( 0.0002 ) <br /> 225 = <br />q = 1.2ii 0.245 ft2/d <br /> 6 <br />Inflow from face = (0.245) (4.6x104) = 1.13x104ft3/d = 59 gpm <br /> <br />Inflow from roof = (2.1x10-4) (1.1x108) = 2.31x104ft3/d = 120 ypm <br />Total Inflow = 59 + 120 179 gpm <br />Table 4 Summary of Maxwell Mine Inflow Calculations <br />Current Mine <br />Roof Face Total <br />gpm gpm gpm <br />Case I 2 7 9 <br />Case II 2 14 16 <br />Case III 2 11 13 <br />Proiected Mine <br />Roof <br />apm Face <br />gpm Total <br />npm <br />120 39 159 <br />120 73 193 <br />120 59 179 <br />n <br />U <br /> <br />
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