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Void Ratio and % Settlement vs. Log of Pressure <br />0.10 1.00 Pressure (tsf) 10.00 100.00 <br />0.95 <br />-1.2% <br />-0.2% <br />0.8% <br />1.8% <br />2.8% <br />0.85 <br />3.8% <br />4.8% <br />5.8% <br />6.8% <br />0.75 <br />8.8% <br />9.8% <br />10.8% <br />11.8% <br />12.8% <br />0.65 <br />13.8 %c <br />m <br />v - <br />14.8% <br />>° <br />15.8 <br />16.8% <br />17.8% <br />0.55 <br />18.8% <br />19.8% <br />20.8% <br />21.8% <br />22.8% <br />0.45 <br />23.8% <br />-----24.8% <br />- - <br />25.8% <br />26.8% <br />27.8% <br />28.8% <br />0.35 <br />129.8% <br />Project: West Elk Mine PR -2 Conveyor and Prep Plant - #06261004 <br />Date: 8/13/09 <br />Sample #: <br />Boring #: SB09 -11 <br />Depth ft: 7.5 -9.5 <br />Job #: 7112 <br />Soil Type: Coal <br />Initial W/C ( %): 10.9 <br />Dry Density (pcf): 53.8 <br />LL: PL: PI: <br />Gs: 1.66 <br />Organic Content ( %): <br />Initial Height (in.): 0.900 <br />Diameter (in.): 2.503 <br />a ° = 0.928 <br />Preconsolidation Pressure (Pc): Compression Index (Cc): 0.19 Recompression Index (Cr): s 0.02 <br />Remarks: Specimen reconstituted to given density at as received moisture content. Specimen initial density was too loose for determination of preconsolidation <br />pressure for given loading sequence. <br />OIL <br />9301 Bryant Ave. South, Suite 107 NGINEERING Bloomington, Minnesota 55420 -3436 <br />ESTING, INC. Revised March 19, 2010 <br />0 <br />10 <br />0 <br />