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Vector Engineering Inc. LARGE SCALE DIRECT SHEAR REPORT <br /> Laboratory Services SPECIAL TEST <br /> 12438 Loma Rica Drive.,Suite C,Grass Valley,CA 95945 <br /> (530)272-2448 Fax(530)272-8553 <br /> cllantNerne: FORWARD LANDFILL COMPANY P14wtName: FORWARD LANDFILL ProiectNo: <br /> superstate: G= Cla Mix 986011.02 <br /> LSN: 120� Remolded <br /> Materiat 1: <--= GSE 60 mil Geomembrane T/S(Textured side up); Roll# 105100590 LSN: BET Free Floating <br /> material 2. b 5/16"Pea Gravel LSN: 120E Remolded <br /> substrate: b Concrete Board Spacers <br /> DISPLACEMENT 5000 <br /> vs.SHEAR STRESS <br /> Test Normal <br /> Point Stress <br /> SI PSf 4000 <br /> 1. 27.8 4000 <br /> 2. 55.6 8000 y <br /> x-3000 <br /> to <br /> 3. 118.1 17000 w <br /> tr <br /> t- <br /> MOISTURE DATA: tr <br /> W <br /> 2000 <br /> (Soil) to <br /> Initial Water Content: <br /> 18% 1000 <br /> Initial Dry Density: <br /> 113.5 pcf <br /> Final Water Content:(%) D <br /> 12. 3. 0.0 0.5 1.0 1.5 2.0 2.5 3.0 <br /> . <br /> 22.9 22.2 20.2 <br /> HORIZONTAL DISPLACEMENT(inches) <br /> STANDARD CONDITIONS SHEAR DISPLACEMENT RATE: 0.041n/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 LGA 12 direct shear machine <br /> with an effective area of 12"x 12"(300 x300 mm). <br /> TEST ORIENTATION: NORMAL STRESS <br /> TOP BOX WITH CLAY <br /> BOTTOM BOX <br /> WITH PEA GRAVEL -�'- GEOMEMBRANE <br /> SPECIAL TEST NOTES: <br /> 1. Each specimen of Geomembrane was cut to 14"x 17"and floated between the upper and lower box. <br /> 2. The clay was remolded in the upper box to the specified compaction requirements. <br /> 3. The 5/16"pea gravel was lightly tamped into place in the lower box. <br /> 4. All test points were consolidated for 2 hours at the specified normal stress,then sheared. <br /> 5. Shearing occurred at the interface between the clay and the textured side of the Geomembrane specimen at test points 2 and 3. <br /> 6. Shearing occurred at the interface between the pea gravel and the smooth side of the Geomembrane specimen at test point 1. <br /> 7. No stretching,abrasion,or tearing occurred on the Geomembrane specimens at the three test points. <br /> By eccepting the data and result represented on this page,Clie�t�grew to limit the liability of Vector Engineering,Inc.from client and a0 other parties for claims arising out of use of this data to <br /> the cost for the res ective tests represented hereon,and ClieAttl revs to indemnity and hold harmless Vector from and against all liability in excess of the aforementioned limit. <br /> Report Date: Entered By: Reviewed By: <br /> 06/28/99 JMRVL Lab Log: <br /> Page 2 of 2 120Q <br />