Laserfiche WebLink
• <br />r1 <br />FALLING HEAD PERMEABILITY CALCULATION <br />PROJECT: 18 Left Shaft Site Pad <br />NUMBER: 08-8241 <br />DATE: 3/4/09 <br />PERM NO. 1 <br /> <br />MATERIAL <br />Sandy Clay <br />`:.`:)tJ< <br />MDD ....................... <br />< E3°a <br />OMC <br />I <br />SAMPLE TH 4 @ 4- <br />k = 2.303 * a*L/A*t (log h1/h2) <br /> <br /> <br /> <br /> <br /> <br />A.. ,p r tt?etet <br /> <br /> <br /> <br /> <br />alue <br /> <br /> <br /> <br /> <br />nits _ <br /> <br /> <br />eadin <br />- Initial r <br />H 1 g <br />fl <br /> <br /> <br />1. cm <br />a = area of standpipe 0.495 cm2 H 2 = final reading fi49' cm <br />A = Area of sample (brass liner) 19.17 cm2 log h1/h2 0.21433 <br />- <br />L -length of sample q inches t = elapsed time 98? seconds <br /> 8.7884 cm k = permeability 1.19E-07 cm/sec <br />TEST READINGS <br />--Date--- ---Time 1-- - h 1 - Time 2-- -_ h 2- Elapsed Time <br /> hours . seconds rate per hour <br /> <br /> <br />1 ? ?I9 <br /> <br />> <br />938880 <br />0.1568 <br /> <br /> <br />PERM NO. 2 <br />MATERIAL Proctor 1P 3Q MDD 07°la < OMC <br />I <br />SAMPLE TI-rs 1-8_(Clays) <br />k = 2.303 * a*L/A*t (log h1/h2) <br /> <br /> <br />14.3ti :artt?eel ::::::::::::::::::::::<: <br /> <br />Value <br /> <br />Units <br />= <br />H 1 Initial reading ............................... <br /> <br /> <br />1 fl <br />...... <br />.. <br />cm <br />a = area of standpipe 0.495 cm2 H 2 = final reading ..................... <br />. <br />to-1 cm <br />A = Area of sample (brass liner) 19.17 cm2 log h1/h2 0.01216 <br /> <br />L = length of sample <br />>' > > > < > .: ,:.:..: inches t = ela sed time <br />p '[2 492t} seconds <br /> 8.7884 cm k= permeability 5.28E-09 cm/sec <br />TEST READINGS <br />Date Time 1 h 1 Time 2 h 2 Elapsed Time <br /> hours seconds rate per hour <br /> <br />Yf 1: ...... 102f 33.. <br /> <br />0 <br />120492 <br /> <br /> <br />.0087 <br /> <br /> <br />0