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c-20 <br />DOWNSLOPE DIKE WIDTH <br />If landslope is 3% or more, subtract rock layer width from <br />adsorption width to obtain minimum downslope dike toe <br />TV ft- l0 ft=�t c ft <br />Calculate mound height at edge of rock layer on downslope <br />side; <br />a. Determine depth of dean sand fill at upslope edge of rock <br />layer: Separation / / feet <br />b. Multiply rock laver width by landslope to determine drop <br />in elevation; Slope Di erence <br />LC.—x�'o+100=�ft <br />c. Add depth of dean sand depth of dean sand for <br />separation at downslope edge to depth of rock laver to <br />depth of soil backfill to get mound height at downslope <br />edge of rock la er; <br />/I / ft + 1 ft + ft+/ft =: -,' ft <br />d. Enter table on page E-18 with landslope and downslope <br />dike ratio. Select dike multiplier of _ 4 1 7 <br />e. Multiply dike multiplier by downslope mound height <br />to get downslope dike width: t 7 ,s- _ �ft <br />g. Compare the values of step G.1 and Step G.21 Select the <br />greater of the two values as the downslope dike width; <br />feet <br />h. Calculate upslope dike width using upslope mound <br />he'.ght and u slope dike multiplier from page E-18; <br />.. x3,4S= ft <br />i. `: ;,;al mound width is the sum of upslope dike width plus <br />rock la er width lus downslope dike width; <br />f±+,eft+y- ft= .3 1- ft <br />3. If landslope is 2.9 percent or less, basal width includes both the <br />upslope and downslope dike widths. <br />a. Calculate downslope dike width using steps G.2.a. <br />through G.21; feet <br />b. Calculate upslope dike width using upslope mound <br />height and dike multiplier from Page E-18; <br />x ft = ft <br />c. Add downslope dike width to upslope dike width to rock <br />layer width <br />ft + ft + ft = ft <br />-1R <br />Rsk 1474r -Wth (42) <br />I <br />Upow" 41♦4 walk ( W <br />33 <br />4.1 <br />Uownslope <br />5:1 <br />41 <br />7:1 <br />3:1 <br />U <br />0" <br />3:1 <br />41 <br />71 <br />1:1 <br />a dop. <br />0 <br />3A <br />la <br />!a <br />♦a <br />7a <br />3a <br />4A <br />7a <br />4a <br />72 <br />1a <br />I <br />3a1 <br />37 <br />s]1 <br />Us <br />7S1 <br />t11 <br />3S <br />4A <br />1f1 <br />W <br />Ut <br />7 <br />3.14 <br />li <br />!S4 <br />♦AZ <br />i.11 <br />2S <br />320 <br />43♦ <br />!S1 <br />41♦ <br />430 <br />3 <br />130 <br />4S4 <br />SS <br />7M <br />1As <br />US <br />337 <br />is <br />!40 <br />!11 <br />♦a! <br />4 <br />'At <br />JjL <br />11 <br />7 S <br />on <br />IA/ <br />� <br />U7 <br />4A <br />SA6 <br />&A <br />S <br />313 <br />fID <br />4A7 <br />13, <br />t0" <br />to <br />4O <br />UZ <br />"0 <br />f71 <br />♦ <br />3A♦ <br />1., <br />7,14 <br />1.1/ <br />tLV <br />2S4 <br />323 <br />3S <br />443 <br />&A <br />!Al <br />7 <br />IJO <br />1S4 <br />7M <br />IO14 <br />13A <br />IA/ <br />3.13 <br />3A <br />123 <br />4" <br />1.13 <br />1 <br />3.45 <br />SS <br />4?1 <br />1134 <br />11.f1 <br />142 <br />3ID <br />3D <br />4A <br />4A1 <br />4M <br />4 <br />4.11 <br />63 <br />to <br />13M <br />141I <br />2a1 <br />2.11 <br />3.40 <br />3.f0 <br />U0 <br />4A1 <br />10 <br />4r <br />1A7 <br />1U <br />ISM <br />2353 <br />2J1 <br />LASM <br />333 <br />4.12 <br />4A4 <br />11 <br />4.4/ <br />7.14 <br />lilt <br />17AS <br />1443 <br />LA <br />3a <br />3A7 <br />3S1 <br />416 <br />tI <br />U4 <br />741 <br />IISO <br />2143 <br />4375 <br />221 <br />IA <br />3.12 <br />30 <br />33D <br />411• <br />