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PERMFILE139682
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PERMFILE139682
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Last modified
8/24/2016 10:42:49 PM
Creation date
11/26/2007 8:52:03 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981025
IBM Index Class Name
Permit File
Doc Date
12/11/2001
Doc Name
GEOTECHNICAL CHARACTERISTICS OF MINE 3 COAL
Section_Exhibit Name
3.0 APPENDIX 3-E
Media Type
D
Archive
No
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<br />:~ <br />TABLE 2 <br />UNCONFINED COMPRESSION TEST RESULTS <br /> <br /> <br /> <br />ock Typel <br />Number <br />of <br />Samples Unconfined Compression Strength <br />Standard <br />Maximum Minimum Mean Deviation <br />(psi) (psi) (psi) (psi) <br />Floor Sandstone 5 13003 15725 14092 1201 <br />Main Coal 7 704 2860 1576 959 <br />Top Coal 1 ----- ----- 1035 ---- <br />Immediate Roof Siltstone 5 10359 18717 13455 3580 <br />Roof Sandstone ~1 3 16538 19260 17730 1392 <br />Roof Sandstone n2 0 ----- ----- ----- ---- <br />~ Roof Sandstone ~3 1 ----- ----- 10971 ---- <br />Roof Sandstone #4 1 ----- ----- 17066 ---- <br />Roof Sandstone ~5 2 19179 20073 19626 632 <br />Roof Siltstone 1 ----- ----- 18367 ---- <br />Notes: <br />1. See Figure 3 for location of these rock types. <br />Lithologic descriptions of rock types are <br />presented in Table 5. <br />2. Conversion factor: <br />1 psi = 6.8948 x 10-3 MPa <br />• <br />
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