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2008-04-15_REVISION - M1980244 (332)
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2008-04-15_REVISION - M1980244 (332)
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Last modified
6/15/2021 5:52:05 PM
Creation date
5/8/2008 1:23:46 PM
Metadata
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Template:
DRMS Permit Index
Permit No
M1980244
IBM Index Class Name
REVISION
Doc Date
4/15/2008
Doc Name
VOL V APP 8 Appendix C.9 Underdrain Calculations
From
CC & V
To
DRMS
Type & Sequence
AM9
Media Type
D
Archive
No
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<br />~ixtkV Phase 6 VLP Secondary Underdrafns <br />sect Number: 1125 <br />JFL <br />te: July 8 2007 <br />~~ <br />SMITH WILLIAMS CONSULTANTS. ING <br />Flow Thrrough Rocldlll Based an ILepe,1973 <br />VrWmoslose <br />„is the seepage velocity <br />is an empirical tsmstant (assumed to be 33 for cxushed gravel (Wiltins, 1956]) <br />is the hydraulic mesa radius <br />' is the gradient <br />T. M. 1973. Plow through rocldrll, P.mbantunent-Dam Engineering Casagrande Volume <br />'led by Hirschfeld R. C. and Poulos S. J. ]ohn Wiley & Sons: 87-107 <br />tllorrs ]. & 1956. Flow of water through roclTill and its application ro the design of dams. <br />' gs of the god Australia-New Zealand Conference on Soil Mechanics and <br />oundation Engineering. Gnterbary University Colcge. Christchurch, New Zeeland, pp. <br />141 - 149. <br />0o WIIkiIB,19S6 and t^eprodutxd ftom Leps,1973: <br /> <br />--- 2 0.24 .; ~w4 ,_ ~ 16 ;~,~, <br />6 0.75 ;f 87 <br />~. 24 ;!:`tom <br />8 096 : <br />~ ;98 :., 32 °".?iK <br />24 3.11 -i'~76-~. c 1,•,` ~ . ~'~8 ° ,' <br />48 6.43 = 11-"t ~ ` ., t,r °4 8Q ;'~T`' <br />1. ftr mooPtfmd ra; mmoq G, ~ 187, a ~ l.0 atl Wtll <br />2. wm°~br6ish rvckb ~Or teyMedu28iMsin lys. bothotvlmdlemm6e 29 bhec buss oo WBtim. <br />Calculalioo Inpnt: <br /> <br />ock D~ (in)= 6 .. ~ .~ ~ ~0~ m <br />Gradient (i}= 0.05 Must be less than I 0 <br />~ a <br />~ <br />° <br />~ ' <br />ow Area (ft <br />) = 8 .'" <br />~ <br />';m <br />oid Ratio (e) = 0.5 <br />actor of Safety 5 <br />'` {;~~~., ~ ~i'~.'~~f'0.7~19nearly interpolated from above Ctble <br />r ~ ^~t`#""r~ r1 ~ .: <br />~~7;INsec <br />~, ~~ . , r , ~. _ ~'t;13~~~'gpm With FO5 applied <br />® t3eotech2007.z1a <br />~mrtoo~ <br />10:21 AM <br />Golder Assoclatea Inc <br />y/~ <br />
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