Laserfiche WebLink
LARGE SCALE DIRECT SHEAR REPORT <br /> ' Test Method 5321-B <br /> ASSOCIATES <br /> Report Date: March 28,2013 <br /> client/Project Name: SAN JOAQUIN COUNTY/CORRAL HOLLOW CQA Project No: 2012.A120 <br /> ' Superstrate: '� Spacer <br /> Material 1: Retention Pond South#1 LSN: 3494A Remolded <br /> Material 2: Ez* Geocomposite LSN: BAA Clamped <br /> ' Substrate: => Concrete board w/friction sand <br /> DISPLACEMENT <br /> vs.SHEAR STRESS 500 <br /> Test Normal <br /> Point Stress <br /> psi 1 psf <br /> 400 <br /> 1. 1.7 250 <br /> N <br /> ,5 300 <br /> L <br /> (1) <br /> W <br /> MOISTURE DATA: UU) <br /> a 200 <br /> (Soil) N <br /> Initial Water Content: <br /> 17.8% 100 <br /> Initial Dry Density: <br /> 92.1 pcf <br /> ' Final Water Content:(%) 0 <br /> 1)39 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 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- SOIL <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. Each specimen of geocomposite was cut to 14"x 20"and clamped to the lower shear box. <br /> ' 3. Each 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 /> Lt-bE=el R4ectsIOlatIN67eI2012A:201304FLst>S-rp Print Date: Entered By: Reviewed By. LLN: <br /> DCN:LSDS-tp(rev., 11/29/12) 03/29/13 KH krc 3494F <br /> ' r ayc 2 of 2 <br />