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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 <br />~ ft -_}_Q_ ft = / o feet <br />2. Calculate Minimum mound size based on geometery: <br />a. Determine depth of dean sand fill at upslope edge of rock <br />layer: Separation /. =s feet <br />b. Multiply rock layer width by landslope <br />to determine drop in elevation; <br />Slope Difference <br />-12_x~%-!-100=:.3._feet <br />c. Add depth of dean sand for separation (2a) --feet <br />at upslope edge, depth of rock layer (1 foot) to depth of <br />cover (1 foot) to find the mound height at the upslope edge <br />of rock layer; <br />~ft+ 1ft + 1ft = ~ -~ feet s 'E:.- <br />d. Enter table with landslope and upslope dike ratio. <br />Select dike multiplier of ~ , ':J ~ <br />e. Multiply dike multiplier by upslope mound height <br />r fooFCovtr <br />Rock Bed Width <br />__ feet <br />__ feet <br />J.\w <br />to find upslope dike width:~ x ..2.f2:::L = _Lo_ feet :5"'i:= <br />f. Add depth of dean sand for slope difference (2b) at µ~-3 · ~ '!".--.s · :;i__ -:::, :: <br />downslope edge, to the mound height at the upslope edge <br />of rock layer (2c) to find the downslope height; <br />~ ft + ~ ft = ~ feet <br />g. Enter table with landslope and downslope dike ratio. <br />Select dike multiplier of Ca , 2 s . $~ <br />h. Multiply dike multiplier by downslope mound height <br />to get downslope dike width: i.,.i~ x L.J,<-=~feet S~ <br />i. C9mpare the values of step G.1 and Step G.2h Select the <br />greater of the two values as the downslope dike width; <br />~-\,..:, feet 0IG:8?7rn77TT017fJ?f: <br />j. Total mound width is the sum of <br />upslope dike (G.2e) width plus rock <br />layer width (D.2) plus <br />/--) L-0 downslope dike width(G.2i); ~ 'L. <br />JI -\ 10 -1 ;) 1 ~-'-l :l_ -1J2_ ft + _j_Q____ ft + ~ ft = J::!:_k_ feet <br />k. Total mound length is the sum of <br />upslope dike width (G.2e) plus rock layer <br />length (D.3) plus upslope dike width (G.2e); <br />-1.t)_ ft + ~ ft + Jj__ ft = -~ feet <br />:)__(.,, +-(./L -t O..I. -.:_ )0'7 <br />uownslope <br />3:1 4.:1 5:1 6:1 7:1 3:1 <br />o/o slol"' <br />0 3.0 (.Q 5.0 6.0 7.0 3.0 <br />I 3.09 U7 5.26 6.38 7.53 2.91 <br />2 3.19 4.35 5.56 6.82 8.14 2.63 <br />3 3.30 (..5( 5.88 7.32 6.86 2.i3 <br />4 3.41 4.76 6.25 7.89 9.72 2.68 <br />5 3.53 5.00 6.67 857 10.77 2.61 <br />.L-,3.66 <Si£, 7.14 9.38 12.07 2.54 <br />7 3.80 5.56 7l}j' .. -· ioi4 1373 2.48 <br />8 3.95 5.88 8.33 11.54 15.91 2.42 <br />9 4.11 ~ 9.09 13.04 18.92 2.36 <br />10 4.29 6.(;J !0.0 15.00 2333 2.31 <br />11 4.48 7.14 11.11 17.65 30.-1.3 2.26 <br />12 4.69 7.69 12.50 21.43 43.i5 2.21 <br />Total Length <br />upslope <br />4:1 5:1 6:1 7:1 8:1 <br />4.0 5.0 6.0 7.0 8.0 <br />3.85 4.76 5.66 654 7.41 <br />3.70 4.54 5.36 6.14 6.90 <br />357 435 5.Cll 5.79 6.45 <br />3.45 4.17 4.84 5.46 6.06 <br />3.33 4.00 4.62 5.19 5.71 <br />6-?D 3.85 4.41 4.93 5.41 <br />3.12 3.70 4.23 4.70 5.13 <br />~ 357 4.C6 4.49 4.88 <br />. 3.45 3.90 4.30 4.65 <br />2.86 3.33 3.75 4.12 4.44 <br />2.78 3.23 3.61 3.95 4.26 <br />2.70 3.12 3.49 3.80 4.Cll