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<br />• <br />• <br />6 <br />4 <br />h <br />]L 2 <br />N <br />W <br />N <br />of <br />Q <br />W <br />~+ n <br />LL <br />N <br />Y <br />N <br />W <br />H <br />N <br />OL <br />Q <br />W <br />x <br />N <br />0.1 0.2 0.3 <br />HORI20NTAL DISPLACEMENT- INCHES <br /> <br />SAMPLE <br />M0157URE <br />DRY <br />NORMAI <br /> <br />BORING <br />DEPTH CONIENf <br />$ DENSItt <br />PCF SfRE55 <br />NSF <br />COMP - 12.0 65 2.0 <br />COMP - 12.2 85 4.0 <br />COMP - 12.6 85 8.0 <br /> <br />SAMPLE TYPE COMPOSITE FROM SHELBY <br />TUBE SAMPLES <br />THICKNESS 1 • 0 IN DIAMETER 2 • S IN <br />STRAIN RATE 0.02 IN/MIN <br />NORMAL <br />STRESS <br /> <br />KSF PEAK <br />SHEAR <br />STRESS <br />KSF HSIDUAL <br />SHFAR <br />STRESS <br />KSF <br />2.0 1.792 1.361 <br />4.0 3.224 3.019 <br />8.0 5.811 5.087 <br /> <br />Peak ~ _ <br />Residual ~ <br />Peak C _ <br />Residual C <br />33° <br />500 <br />NORMAL STRESS - KSf <br />SAMPLE DESCRIPTION: COAL REFUSE, MOIST, EiLACK <br />REMARKS: COMPOSITE SAMPLE (+3/8 INCH MATERIAL REMOVED AND <br />REPLACED WITH +4 TO -3/8) <br />JOB NO. 22,478 <br />Direct Shear <br />Test Results FIG. B-4 <br />