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DOWNSLOPE DIKE 'WIDTH <br />If landslope is 3`l6 or more, subtract rock Dyer width from <br />adsorption width to obtain minimum downslope dike toe <br />Z4 ft- /y ft = __J l- _ f t <br />Calculate mound height at edge of rock layer on downsloF? <br />side; <br />a. Determine depth of clean sand fill at upslope edge of rock <br />layer: Separation Z feet <br />1:). Multiply rock layer width by landslope to determine drop <br />in elevation; Slope Difference <br />X. <br />c. Add depth of clean sand depth of dean sand for <br />separation at downslope edge to depth of rock layer to <br />depth of soil backfill to get mound height at downslope <br />edge of rock layer; <br />Z ft + . 4- ft + _1— ft*__ftft <br />d. Enter table on page E-18 with landslope and downslope <br />dike ratio. Select dike multiplier of 4.7G� <br />e. Multiply dike multiplier by downslope mound height <br />to get downslope dike width. -I.7(.- ;tc �- - Z/ ft <br />g. Compare the values of step G.1 and Step G.21. Select the <br />greater of the two values as the dov%•nslope dike width; <br />Z/feet <br />h. Calculate upslope dike width using upslope mound <br />height and upslope dike multiplier from page E-18; <br />a4sx_ - =I-+— ft <br />i. Total mound width is the sum of upslope dike width plus <br />E-20 <br />ar1� . tirwa.. <br />a� <br />w.� <br />swu ..W Woks ua <br />4 rQ <br />Ulww• aa...wa 1N <br />Dw.�r•fr a... -d . <br />rock layer width plus downslope d►ke width; If <br />I :tlR+-if - ft+ /� ft- -qt!s- ft Z6�q/r sc�r14 * Iq <br />3. If landslope is 2.9 percent or less, basal width includes both the- <br />upslope <br />heupslope 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 h= ft <br />c. Add downslope dike width to upslope dike width to rock <br />layer width <br />Et+ h+ ft= ft <br />F.1 R <br />1.1 <br />al <br />wn3 oppe <br />fl <br />al <br />71 <br />,1 <br />•1 <br />!1 <br />♦1 <br />73 <br />at <br />IL.o•pr <br />0 <br />!D <br />a0 <br />fD <br />•D <br />79 <br />is <br />!11 <br />an <br />tD <br />!Y <br />7a <br />am <br />U <br />741 <br />1 <br />1 <br />)A <br />,31 <br />a17 <br />2s <br />3�► <br />s36 <br />US <br />4A2 <br />751 <br />all <br />,71 <br />2S0 <br />,ri <br />aS• <br />4.311 <br />is <br />fO <br />ala <br />11+1 <br />a10 <br />•at <br />3 <br />,30 <br />til <br />S �. <br />631 <br />732 <br />7M <br />11• <br />!? <br />27f <br />2M <br />,S7 <br />%A <br />417 <br />an <br />!J6 <br />•o• <br />-3 <br />UI <br />)s) <br />_ ._ <br />fm <br />4a7 <br />IS, <br />16.-7 <br />2L1 <br />333 <br />am <br />1A <br />4A!30 <br />a.at <br />4," <br />471 <br />fa1 <br />• <br />7 <br />,Y <br />fY <br />It 11 <br />7la <br />fM <br />•y <br />10.1• <br />12.07 <br />127) <br />2.,a <br />tA1 <br />1.37 <br />!l7 <br />!]0 <br />lm <br />am <br />I <br />a <br />,10 <br />,af <br />f� <br />a.0 <br />1S.fa <br />11!1 <br />141 <br />,l0 <br />1Y <br />,.f7 <br />f$ <br />as <br />Ifo <br />a.a• <br />a30 <br />•Y <br />•af <br />1 <br />10 <br />aSl <br />aY <br />•'.1' <br />•L7 <br />•171 <br />160 <br />1104 <br />Ifo' <br />Sall <br />2211 <br />2K <br />2.31 <br />2M <br />,33 <br />IZ <br />,11 <br />♦12 <br />)a! <br />aY <br />a3• <br />ll <br />ala <br />714 <br />11 IS <br />17aS <br />)oaf <br />at270 <br />136 <br />2.71 <br />,.T3 <br />)17 <br />!H <br />)= <br />40412 <br />/N <br />7a1 <br />12.f0 <br />2117 <br />