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PERMFILE109209
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PERMFILE109209
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Entry Properties
Last modified
8/24/2016 10:01:51 PM
Creation date
11/24/2007 5:58:20 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981014
IBM Index Class Name
Permit File
Doc Date
12/11/2001
Doc Name
TR-14 continued
Section_Exhibit Name
EXHIBIT 15 Part 9a
Media Type
D
Archive
No
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SENj HY:Southf ie ld Coal Mine %10-28-91 9:27GiM % 71978463951 303 879 9048%p 9 <br />Unooln De4bce,lna <br />Geotechnkal Conaultanb <br />~poo Waal Fillmora St <br />ColofaEo 9Prtnpt, CO eopo7 August l6, 1988 <br />(~07) 6~2.93a~ <br />' GaoWeat, InC. <br />91 E. Monument <br />Colorado Springo, CO 80903 <br />Attne Xen Myar• <br />' Ret Laboratory Direct Shear Teet Raaults, Florence Southlieid <br />Coal Mine, Coal Refuse Maeerial, Sample Delivered to <br />Colorado Springs Laboratory July 27, 1988 <br />' Dear Mr. Mysrs~ <br />At your request, repreaentativas o! Lincoln DeVora, Inc., hav• <br />completed lnboratory direct shear !eating of coal relusa material <br />delivered to our Colorado 6pringa laboratory facility on July 27, <br />1988. Thi• material wee not obtained in the field by personnel <br />o! Lincoln DeVore, inc. As a result, this laboratory cannot <br />verify the field location from which the material was obtained, <br />or the method of sampling. <br />The taste were performed using the procedures outlined in ]18M <br />D-3080, Method for Direst Shear Test of Soils Under Coneplidated <br />Drained Conditions. At your request, three consolidated-draiaad <br />teat series were performed on rapraaantative materials remolded <br />to the average dry densities of 63.8, 54.3 end 44.3 pci, at <br />approximately 25~ moisture content. The tests were performed at <br />a strain rate of approximately 0.002 inches/minute. The test <br />specimens were consolidated under normal loads varying between <br />1,000 to 6,000 psf prior to performing the shear tact. The <br />placement dry densities and dry densities after specimen con- <br />solidation are summarised on the attached sheets. The moisture <br />contents at molding and at completion oL the tests are also sua- <br />mari:ed on the attached sheets. The consolidated dry densities <br />were calculated using normal displacement consolidation data <br />readings and placement moisture contents. <br />
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