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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 /> ?Ad.') ft- to ft= /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 1.3 feet <br /> b. Multiply rock layer width by landslope ci4 <br /> . 1 foot Cover. <br /> to determine drop in elevation; H'- 44 root Ro :ed <br /> s- <br /> SIo <br /> Slope Difference Separeilon SS <br /> /D x C. %--100 = , 1. feet ------. 4 Slope Difference sic_ et <br /> UpsloDe Width <br />• <br /> c. Add depth of clean sand for separation (2a) �1-tees <br /> P P RocK Bed Width <br /> at upslope edge,depth of rock layer (1 foot) to depth of JL_-feet Downslope width <br /> cover(1 foot) to find the mound height at the upslope edge a r°°` <br /> of rock layer; <br /> J.-3 ft+ lft + lft= 33 feet <br /> d. Enter table with landslope and upslope dike ratio. <br /> Select dike multiplier of 3 .del <br /> • <br /> e. Multiply dike multiplier by upslope mound height <br /> to find upslope dike width:3.3 x 3.273 = 11 .feet <br /> f. Add depth of clean 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.'1 ft+ • L. ft= 3,'/' feet <br /> g. Enter table with landslope and downslope dike ratio. <br /> Select dike multiplier of `).1%-t . <br /> h. Multiply dike multiplier by downslope mound height <br /> to get downslope dike width:3, x ').P-1 = s! ,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 /> D feet , : :: . <br /> UDS10�5 width - :::G:'•'•'^t•:%`�.: <br /> • .��tett - °< { ..�::::::•i:.r;:?::; � <br /> j. Total mound width is the sumi <br /> upslope dike G.2e width plus rock _ " Rock tied wlatn ` <br /> layer width (D.2) plus = 1 - to sc ,lest. . . . .i. <br /> o UDslooe f 1"h �Li UDe�li oe width <br /> • downslope dike width(G.2i), <br /> :. to <br /> e <br /> l l ft+ t o ft + a,V ft = 4 q feet 0 <br /> . 1.!;',IliiiiiiiiggiliiiignMAgitpmuimisgE:,:,;..•;gmimm:m <br /> 10stetMIOth <br /> k. Total mound length is the sum of • �• _,DOwn5t <br /> 116.1111111111111, <br /> upslope dike width (G.2e) plus rock layer <br /> length (D.3) plus upslope dike width (G.2e); r <br /> 1 1 ' ft+ ,c' ' ft+ i i ft = `Y7 feet t <br /> a SJ'. aY , t Toter Length )1 1 <br /> Downslope L pslope <br /> 3:1 6:1 5:1 6:1 7:1 3:1 4:1 5:1 6:1 7:1 8:1 <br /> 9.elope <br /> 0 3.0 4.0 5.0 60 7.0 3.0 4.0 5.0 6.0 7.0 8.0 <br /> 1 3.09 4.17 526 6.38 753 2.91 3.85 4.76 5.66 6.54 741 <br /> 2 3.19 4.35 5.56 6.82 8.14 2.83 3.70 454 5.36 6.14 6.90 <br /> 3 3.30 454 5.88 7.32 8.86 2.75 357 4.35 5.08 5.79 6.45 <br /> 4 3.41 416 6.25 7.89 9.72 2.68 3.45 4.17 4.84 5.46 6.06 <br /> 5 353 5.00 6.67 8.57 1077 2.61 .-3.33 . 4.00 4.62 . 5.19 5.71 <br /> 6 366 526 14) 938 1207 754 t:. <br /> . 323 3.85 44.1 <br /> {.93 5.41 <br /> 7 380 556 '7.69 1034 1393 248 3.12 3.70 423 {.70 5.13 <br /> 8 3.95 5.88 8.33 1134 15.91 2.42 3.03 357 4.05 4.49 4.88 <br /> 9 4.11 6.25 9.09 13.04 18.92 2.36 294 3.45 3.90 4.30 4.65 <br /> 10 429 6.67 10.0 15.00 23.33 231 2.86 3.33 3.75 4.12 4.44 <br /> 11 4.48 7.14 11.11 17.65 30.43 226 2.78 323 3.61 3.95 4.26 <br /> 12 469 7.69 1250 21.43 43.75 2.21 2.70 3.12 3.49 3.80 448 <br />