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G. DOWNSLOPE DIICE WIDTH �}-•7 % <br /> 1. If landslope is 3% or more, subtract rock laver width from <br /> adsorption width to obtain minimum do�vnslope dike toe <br /> L5,Z ft-�.ft = S • a feet <br /> 2. Calculate ?viinimum mound size based on geometery: <br /> a. Deterrnine depth of dean sand fill at upslope edge of rock <br /> layer: Separation oZ feet <br /> b. Multiply rock layer width by landslope � foot Cover <br /> I toot Ro eo <br /> to determine drop in elevation; � <br /> Slope Difference SeDeretlon _ teet <br /> �� X T�7 °�o = 1�� _ •�7 feet SIODa Otff�rence �• et <br /> UDSIoOe wiCth i <br /> c. Add de th of clean sand for se aration (2a) �3' ��eet � <br /> P P Rock 8e0 width <br /> at upslope edge, depth of rock layer (1 foot) to depth of J3L �ze� oow�5�oo�W�at� <br /> cover (1 foot) to find the mound height at the upslope edge a�'S re°` <br /> of rock layer; <br /> _ 2 ft + lft + lft = � feet <br /> d. Enter table with landslope and upslope dike ratio. �� I , S % <br /> Select dike multiplier of 3 . 3 3 <br /> e. Multiply dike multiplier by upslope mound height <br /> to find upslope dike width: � x 3�33 = /3•sfeet <br /> f. Add depth of dean sand for slope difference (2b) at <br /> downslope edge, to the mound height at the upslope edge <br /> of rock layer (2c) to find the downslope height; <br /> ,�7 ft + �ft = `�, 5 feet <br /> g. Enter table with landslope and downslope dike rario. 4; I � 5 /a <br /> Select dike multiplier of 5. 0 0 <br /> h. Multiply dike multiplier by downslope mound height <br /> to get downslope dike width: S.Oa x 4. S = ZZ•5 feet <br /> i. Compare the values of step G.1 and Step G.2h Select the <br /> greater of the tcvo values as the docvnslope dike width; <br /> oZ a. 5 feet � : <br /> ♦ : u/_7rJ e�et�. + �� / � � i <br /> j. Total mound width is the sum of �g <br /> � F � <br /> upslope dike (G.2e) width plus rock ,, E Ro�r o.,N„�� � <br /> _L� �eet <br /> layer width (D.2) plus a uosiooe wiatn uo i oe wiain <br /> downslope dike width(G.2i); J �ie°` �`e i` <br /> l3.5 ft+ 1 b ft +2�.5 ft = � feet � i _ ; <br /> � oo �s�o �w,a�� j <br /> k. Total mound length is the sum of E �a��„� �cs ,� I <br /> upslope dike width (G2e) plus rock layer � <br /> length (D.3) plus upslope dike width (G.2e); � <br /> /3.� ft+ 5o ft + �3.5 ft = 77 feet � € - <br /> Tatal Lenptn _ �'� � <br /> owns ope ps ope <br /> 3:1 �:1 5:1 &1 7:1 3:1 d:l S:l 6:1 7:1 8:1 <br /> s.Iope <br /> 0 3A 4.0 5.0 60 7.0 3.0 6.0 5.0 6.0 7.0 8D <br /> 7 3A9 �.17 5.1b 638 �53 291 3.&i 4.76 5.6b 6i4 7.41 <br /> 2 J.19 �35 556 6.ffi 8.16 283 3.70 4S4 5.36 6.1d 6.90 <br /> 3 330 {51 5.88 7.32 8.86 2:� 3�'7 435 5.06 i.J9 6Ai <br /> f 3A1 l7 675 7.89 9.T1 26B 3.1i 4.17 0.84 i.�6 6A6 <br /> S 353 �.00 667 857 1Q77 261 � 6.00 a.62 5.19 571 <br /> 6 366 7.1< 938 1207 254 3.21 3.gi 6.61 4.93 i.�l <br /> 7 390 556 7.69 1034 13.T3 268 3.12 3.70 4.23 L� i.13 <br /> 8 3.95 5.88 833 1154 15.91 2G2 3.Q3 3S 4.Q5 1.69 tB8 <br /> 9 {.11 6.75 9.09 13.06 18.92 236 294 3.ti 3.90 l30 66i <br /> 10 {29 6.67 10.0 15.00 'v'33 231 286 3.33 3.T 6.12 4.44 <br /> 11 �.�8 7.14 I1.11 17.65 30.43 22b 278 3.�3 3.61 3.95 d1b ,1 <br /> 12 lb9 '7.69 1250 21A3 s3.T Z?I 270 3.12 3A9 I.90 4.� 6Y <br />