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G. DOWNSLOPE DIKE WIDTH <br /> 1. If landslope is 3% or more,subtract rock layer width from • ' <br /> ' adsorption width to obtain minimum downslope dike toe for • <br /> "--..., absorption: • . <br /> Do ft- /o ft = 11 feet <br /> 2. Calculate minimum mound size based on geometery: . <br /> • <br /> a. Determine depth of clean sand fill at*upslope edge of rock <br /> layer: Separation 1.a feet , <br /> b. Multiply rock layer width by landslope to determine drop ,.,,.,. ' <br /> in elevation; Slope Difference E �4r..► <br /> /o x G, %+ 100 == • ( feet <br /> c. Add de th of clean sand de th of clean sand for °"'"�' -4.9 o�6.e:. <br /> P P <br /> separation at upslope edge (2a) to depth of rock layer to "°l " <br /> rock depth and the depth of cover to find the total mound �'" '~ <br /> height at upslope edge of rock layer; <br /> / ft + 1 ft + l ft = R feet <br /> d. Enter table on page bottom with landslope and upslope <br /> dike ratio. Select dike multiplier of• ' 3 •"D.:3 <br /> e. Multiply dike multiplier by upslope mound height <br /> to get upslope dike width: ;_ x 3•.), a o feet <br /> f. Add the depth of slope difference(2b) to the upslope <br /> height to get the downslope height <br /> 3 + • (, = 3..l, feet <br /> - g. Enter table on page bottom with landslope and <br /> downslope dike ratio. • <br /> Select dike multiplier of S • . 4• . <br /> h. Multiply dike multiplier by downslope mound height <br /> to get downslope dike width: 3- u, x .A.t... =, )q feet <br /> i. Compare the values of step G.1 and Step G.2.h. Select the ' <br /> greater of the two values as the downslope dike width; <br /> I' feet • <br /> width ish •;.::.::;:::::. :::::, ,N,:•.:r:�;.,V::;r i t:.:, •,i1 <br /> the sum of upslope dike :: ,,t;::; <br /> j. Total mound e �w���' 1�Iki'wi�i��jZ <br /> width plus rock layer width plus downslope tl41::{ <br /> dike width; . ..:::. : ..::: <br /> /0 ft + 1 O ft + i f t= �j feetii.4.dii;121• :: . : ": 14••sti Up•lop.131k.W Id1hL_ <br /> GJ •� Upiope Duce N/IdiI+,1,D;' 'r:r %.;.!•.,+:w:.: <br /> k. Total mound length is the sum of upslope z~?.r{ ""° ;•:;i.: `'"'�f `1::ii"•':ti''•`'`•'j'•''::;_':.•�:::� <br /> : ' . vnsgit�'� W'a ' '`dike width plus rock layer length plus :s: ::: :':t:' °...i.„.../v..,..,"..%.•,/,,,,,,‘"A:. <br /> upslope dike width; . . . • . • ° f::t':::;'' <br /> d � �'?� .�i�i'•.:r'tii:;':tir+i+r:+:'.:{.r•. <br /> Jo ft+ -S' ft + / o ft= ')S' feet ' <br /> Told tAin6lh Os' <br /> uownslopc upp61 <br /> . 3:1 4:1 5:1 &1 7:1 3:1 4:1 51 &1 7:1 1:1 <br /> • %dope ' <br /> 0 30 4.0 5.0 6.0 7.11 3.0 4.0 5.0 40 7.0 50 <br /> 1 34 4.17 5.26 6.38 733 291 3.15 4.76 5.66 634 741 ' <br /> 2 .3.19 4.35 536 6.62 5.14 233 3.70 • 4.54. 536 614 6.10 <br /> 3 3.30 434 5.66 7.32 lK 2.75 3.57 4.25 5.06 5.71 646 <br /> 4 141 4.76 6.25 7.69 9.72 2.16 345 4.17 4.14 5.46 6.06 <br /> 5 332 54 4.57 637 10.77 2.61 Nit 44 4.47 5.19 5.71 <br /> _6.-__.__146 Q .1_.. 7.14 9.2A_______..12.07__ _234 U.22? 3.65 4.41 4.13 5.41 <br /> 7 110 6 SIA-- 10.34 1323 141 1.12 3.70 4.22 4.70 5.13 <br /> 6 3.96 5.61 113 11.54 15.91 2.42 3.02 3.57 4.05 4.49 416 - <br /> 9 4.11 6.23 9.09 13.04 16.92 2.36 2.94 1.45 3.90 430 446 4 .• + <br /> 10 429 6.0 10.0 15.00 2333 2.31 266 3.33 3.75 4.12 444 <br /> 11 446 7.14 11.11 1745 3.43 2.26 2.76 323 3.61 3.95 426 <br /> 12 44 7.69 12.50 21 Al 43.75 2.21 2.70 112 3.49 3.40 44 <br />