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1 <br />Test <br />Series <br />Number <br />GLII126 /SGI00011 <br />INTERFACE DIRECT SHEAR TESTING RESULTS <br />MEASURED TOTAL STRESS SHEAR STRENGTII PARAMETERS <br />CRIPPLE CREEK & VICTOR GOLD MINING COMPANY <br />Interface Tested( <br />WETTED DRAIN COVER FILL / WETTED 80 -mil GSE SMOOTH <br />VLDPE GEOMEMBRANE / IRON CLAD SOIL LINER MATERIAL <br />DRAIN COVER FILL / 80 -mil GSE SINGLE -SIDED TEXTURE LLDPE <br />GEOMEMBRANE WITH TEXTURE SIDE DOWN / CLAY BORROW <br />SOIL LINER (SLC- 4)UNDER WE'L'TED CONDITIONS <br />DRAIN COVER FILL / 80 -mil GSE SINGLE -SIDED TEXTURE LLI)PE <br />GEOMEMBRANE WITH TEXTURE SIDE DOWN / CI.AY BORROW <br />SOIL (SLC -4) UNDER WETTED & CONSOLIDATED CONDITIONS <br />TABLE 1 <br />(3) .1 he large displacement shear strength was calculated using the shear force measured at the end of each test <br />Normal { Peak Strength( �1 Large Dislnacement <br />S(rength( <br />Stress 1 <br />Friction (Adhesion; 1i2 . Friction Adhesion R2 <br />0 Angle (psf) ; Angle 1 (psf) <br />If ■ - - - -- - -- - - ... <br />500 27 0 1.0000 , 27 ' 0 1.0000 C- I <br />500 <br />ICi 0 <br />1.0000 <br />I5 <br />0 1.0000 C -2 <br />0 ; 1.0000 16 0 1.0000 C -3 <br />Not ,. (I) See Appendix 13 for detailed test conditions and procedures. For Test Nn. 1, shear failure (sliding) occured between the drain cover fill and the gcomembrnne For 1 est Nos. 2 and 3. sliding occurcd <br />between cloy borrow soil liner (SLC -4) and the textured side oldie gcomcmbranc <br />(2) For each test series, the total - stress interface friction angles and adhesions were determined from a straight line drawn front the origin through the test dais. Caution should be exercised in <br />using these shear strength parameters for applications involving nonnal stresses other than the normal stresses used in cacti test series 1 he value of R', the coefficient oi correlation, provides <br />an indication of how well the best-fit shear strength paratncters match the test data. <br />Reference <br />Appendix <br />Figure <br />Number <br />00/02/25 <br />