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Vector Engineering Inc. LARGE SCALE DIRECT SHEAR REPORT <br /> 143E Spring Hill Drive,Grass Valley,CA 95945 (530)272-2448 Test Method D-5321 A <br /> LABORATORY SERVICES <br /> Report Date: June 2,2003 <br /> nt Name: LEWIS ENGINEERING INC. Pro/ecl Name: FORWARD LANDFILL,WMU FU-03 Project No: 021713.01 <br /> Superstrate: <br /> Material I* G� GSE 12 oz Geotextile(to textured side of HDPE) LSN: 885A Clamped <br /> Material 2: GSE 60 mil HDPE Textured/Smooth LSN: 885B Clamped <br /> Substrate: e--� <br /> DISPLACEMENT 8000 <br /> vs.SHEAR STRESS <br /> Test Normal <br /> Point Stress 7000 <br /> psi Psf <br /> 1. 13.9 2000 6000 <br /> 2. 27.8 4000 <br /> 3. 55.6 8000 as000 <br /> 4. 83.3 12000 C/) <br /> U) <br /> W <br /> 0�4000 <br /> U) <br /> Cr <br /> Q <br /> =3000 <br /> m <br /> 2000 <br /> 1000 <br /> 0 <br /> 0.0 0.5 1.0 1.5 2.0 2.5 3.0 <br /> HORIZONTAL DISPLACEMENT(inches) <br /> STANDARD CONDITIONS: SHEAR DISPLACEMENT RATE: 0.04 in/min <br /> 1. The"gap"between shear boxes was set at 80 mil(2.0 mm) <br /> 2. The test specimens were flooded during testing unless otherwise noted. <br /> 3. High Normal Stresses,>5psi(35 kPa)was applied using air pressure. <br /> 4. Low Normal Stresses, <5psi(35 kPa)was applied using dead weights. <br /> 5. The tests were terminated after 3.0"(75 mm)of displacement unless otherwise noted. <br /> 6. Tests were performed in general accordance with ASTM procedure D-5321 using a Brainard-Killman LG-112 direct shear machine <br /> with an effective area of 12"x 12"(300 x300 mm). <br /> TEST ORIENTATION: 4 NORMAL STRESS <br /> TOP BOX WITH BOARD SPACERS GEOTEXTILE <br /> BOTTOM BOX W/RIGID SUBSTRATE - GEOMEMBRANE <br /> 7:- Asperity Height: 0.021 in. <br /> SPECIAL TEST NOTES: <br /> 1. Each specimen of geomembrane was cut to 14"x 20"and clamped to the lower shear box. <br /> 2. Each specimen of geotextile was cut to 14"x 16"and clamped to the upper shear box. <br /> 3. Each test interface was sprayed with water then consolidated for 2 hrs at the specified normal stress,then sheared. <br /> 4. The test was performed in a"wet'or"flooded"condition. <br /> 5. Shearing occurred at the interface of the textile and geomembrane specimens. <br /> 6. The Friction Angle and Adhesion(or Cohesion)results given here are based on a mathematically determined best fit line. <br /> 7. Further interpretation should be conducted by a qualified professional experienced in geosynthetic and geotechnical engineering. <br /> Wtohese results apply only to the above listed samples/materials. The data and information are proprietary and can not be released without authorization of Vector Engineering Inc. <br /> cce'ting the data and result represented on this page,Client agrees to limit the liability of Vector Engineering,Inc.from client and all other parties for claims arising out or use o/this <br /> date the cost for the respective test(s)represented hereon,and Client agrees to indemnity and hold harmless Vector from and against all liability in excess of the aforementioned limit. <br /> L:t labexcel 1 Projects 1 1902 1 021713 t 885C-Isds Entered By. KRC Print Date: 06/10103 Rev,By: Lab Log: <br /> DCN:LSDS-rp(rev 0,03124103) Page 2 of 2 885C <br />