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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 /> ac,.? ft- to ,ft = 1 '0 feet <br /> 2. Calculate Minimum mound size based on geometery: <br /> a. Determine depth of clean sand fill at upslope edge of rock <br /> layer: Separation J. < feet <br /> b. Multiply rock layer width by landslope I' foot <br /> t°"" <br /> • <br /> to determine drop in elevation; t foot Re :ed <br /> Slope Difference Seperotion feet <br /> feet Slope Difference �� et <br /> _LO x LI %- 100 = ,i. uvslope Width <br /> c. Add depth of clean sand for separation (2a) -1�teat Rock Sed Width <br /> at upslope edge,depth of rock layer(1 foot) to depth of _ZQ_feet Downslope Width <br /> cover(1 foot)to find the mound height at the upslope edge ___1_,_feet <br /> of rock layer; <br /> /. s' ft + lft+ 1ft= 3-feet <br /> d. Enter table with landslope and upslope dike ratio. <br /> Select dike multiplier of 3.1-1.C. <br /> e. Multiply dike multiplier by upslope mound height <br /> to find upslope dike width: •< x ?„2.4.(= 1Z feet <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 /> 3.S ft+ ,y ft= 3,q feet <br /> . g. Enter table with landslope and downslope dike ratio. <br /> Select dike multiplier of LI.- . <br /> h. Multiply dike multiplier by downslope mound height <br /> to get downslope dike width: s./ x 1.1.11., = I feet <br /> i. Compare the values of step G.1 and Step G.2h Select the <br /> greater of the two values as the downslope dike width; ,�%' <br /> 11 feet , r - <br /> Upsiope With <br /> j. Total mound width is the sum of J3-tea , <br /> upslope dike(G.2e) width plus rockgimma <br /> • ROCK eee Width . •AURA <br /> l>.:.:»:; <br /> . .... • ,o�f�tea <br /> Width <br /> layer width (D.2)plus °D . 1;1es0t1" . . .. UDJ,° •p.reel <br /> r <br /> downslope <br /> dike <br /> width(G.2i);21 <br /> ) <br /> :: .. .... <br /> la ft+ )o ft+ _i y ft = _ feet .2. <br /> k. Total mound length is the sum of ;>:`:::`'`:.'':«_"::":'•:':'` <br /> °ewnsi°De width <br /> th <br /> upslopedike width (G.2e) plus rock layer i <br /> length(D.3)plus upslope dike width (G.2e); `; <<<<;`:` : "`":` :.:,:.i:•] <br /> la ft + 5s ft + IZ ft = 7g feet ., ._ �3 <br /> y 4- ss . t 107 53 <br /> Totes Length <br /> Downslope I.pslope <br /> 3:1 4:1 5:1 61 7:1 3:1 4:1 5:1 61 7:1 8:1 <br /> %ape <br /> 0 3.0 4.0 5.0 6.0 7.0 3.0 4.0 5.0 6.0 7.0 8.0 <br /> 1 3.09 4.17 5.26 6.38 753 2.91 3.85 4.76 5.66 654 7.41 <br /> 2 3.19 4.35 356 6.62 8.14 2.83 3.70 454 5.36 6.14 6.90 <br /> 3 330 Zit-..) <br /> _ 5.88 7.32 8.86 2.75 357 435 5.08 5.79 6.45 <br /> 4 <br /> 3.61 (L76� 7.89 9.i�--... 2.68 .45 4.17 4.84 5.46 6.06 <br /> 5 353 Sm 6.67• ---.857 .....__.Y 10.77 2.61 4.10 4.62 5.19 571 <br /> 6 366 5.26 7.14 9.38 12.07 2.54 3.23 3.85 4.41 4.93 5.41 <br /> 7 3.20 536 7.69 10.34 13.73 2.48 3.12 3.70 4.23 4.70 5.13 <br /> 8 3.95 598 8.33 1154 15.91 2.42 3.03 357 4.05 4.49 498 <br /> 9 4.11 6.25 9.09 13.04 18.92 2.36 2.94 3.45 3.90 4.30 4.65 <br /> 10 429 6.67 10.0 15.00 23.33 2.31 2.86 3.33 3.75 4.12 4.44 <br /> 11 4.48 7.14 11.11 17.65 30.43 2.26 2.78 3.23 3.61 3.95 4.26 <br /> 12 4.69 7.69 12.50 21.43 43.75 2.21 2.70 3.12 3.49 3.80 4.08 _ <br />