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LARGE SCALE DIRECT SHEAR REPORT <br /> Geo—Logk Test Method D-5321-6. <br /> ' ASSOCIATES <br /> Report Date: May 1,2013 <br /> Client/Project Name: Project No: <br /> ' SAN JOAQUIN COUNTY/CORRAL HOLLOW COA 2012.A120 <br /> superstrate: Spacer <br /> Material 1: Retention Pond South#1 LSN: 3494A Remolded <br /> Material 2: Agru 200 mil Geocomposite(#517427.13) LsN.- BAC Clamped <br /> Substrate: b Concrete board w/friction sand <br /> DISPLACEMENT <br /> vs.SHEAR STRESS 500 - — - - <br /> Test Normal <br /> Point Stress <br /> psi psf <br /> aoo <br /> 1.7 250 <br /> N <br /> ,5300- <br /> U) <br /> -300W <br /> U) <br /> W 1 <br /> of <br /> H <br /> MOISTURE DATA: <br /> Q 200 <br /> ' W <br /> (Soil) _ <br /> V) <br /> Initial Water Content: <br /> ' 17.8% 100 <br /> Initial Dry Density: <br /> 92.1 pcf <br /> ' o <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 SPACERSSOIL, <br /> GEOCOMPOSITE <br /> BOTTOM BOX W/RIGID SUBSTRATE <br /> ' SPECIAL TEST NOTES: <br /> 1. The test soil was remolded into the upper box to the specified dry density and water content. <br /> ' 2. Test specimen of geocomposite was cut to 14"x 20"and clamped to the lower shear box. <br /> 3. Test specimen was consolidated for 24 hours 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 soil and geocomposite specimens. <br /> ' 6. Further interpretation should be conducted by a qualified professional experienced in geosynthetic and geotechnical engineering. <br /> This testing is based upon accepted industry practice as well as the test method listed. These results apply only to the samples <br /> supplied and tested for the above referenced job. <br /> LLabexcellPlajedsI Client NarreI2012A120t 3506DLSOS4p Print Date: 1 Entered By. Reviewed By. LLN: <br /> ' DCN:LSDS-rp(rev., 11/29/12) 05/Oghbe 2 Of 2 JL KH 3508D <br />