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G. DOWNSLOPE DIKE WIDTH <br /> 1. If landslope is 2.9 % or less adsorption width inculdes both upslope and <br /> downslope widths <br /> 2. Calculate Minimum mound size bsaed on geometery: <br /> a. Determine depth of clean sand fill at upslope edge of rock layer: <br /> Separation /, y feet <br /> b. Multiply rock layer width by landslope 1 feet corer <br /> to determine drop in elevation; 1 f eo t R e ed <br /> Slope Difference SeDeretlon feet <br /> x -% + 100 = feet Slope Difference �_ et <br /> Upslope Width <br /> c. Add depth of clean sand for separation (2a) feet <br /> Rock Bed Width <br /> at upslope edge, depth of rock layer (1 foot) to feet Downslope width <br /> depth of cover (1 foot) to find the mound height at the feet <br /> upslope edge of rock layer; ),0 ft + Ift + 1 f=Z feet <br /> d. Enter table with landslope and upslope dike ratio. a-� t I =� y ' snolN 4 P W <br /> Select dike multiplier of H <br /> e. Multiply dike multiplier by upslope mound height to find <br /> upslope dike width: �_x H _= 1-,-4- feet QRST SO4-C�4 -4 *4 _1b <br /> f. Add depth of clean sand for slope difference (2b) at downslope edge, to <br /> the mound height at the upslope edge of rock layer (20 to find the <br /> downslope height; - it__+- -- ft = feet <br /> g. Enter table with landslope and downslope dike ratio. <br /> Select dike multiplier of �---- <br /> h. Multiply dike multiplier by downslope mound height to get <br /> downslope dike width: feet <br /> i. Minimum mound width is the sum of upslope dike width plus rock <br /> layer width plus downslope dike width; <br /> ---_..ft- feet <br /> upslope W1atn <br /> j. Subtract the minimum width (2.i) from the f.a <br /> _ ... <br /> adsorption area (F.4) to find the additional i ROCK Bid Width . <br /> downslope area for adsorption L P,1& `°°` <br /> [ Upslope W1dtn UDs1oDe Width <br /> feet 3 feet feet <br /> k. Add the additional width (2.j ) to the <br /> I Li ID+ downsolpe width and recalculate So oowoslcp.Wiotn <br /> �.Z the total width E r.a <br /> 1Z ft + eft + �-�ft = 39 feetV4� f <br /> E <br /> 1. Total mound length is the sum of <br /> upslope dike width plus rock layer length <br /> plus upslope dike width: Tote, length <br /> 1Z ft+ 1,,eft + 11,,_ ftfeet <br /> Downslope UPSIOPe <br /> 3:1 4:1 5:1 61 7:1 3:1 4:1 5:1 6:1 7:1 8:1 <br /> %dope <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 51b 6.36 7-53 291 3.85 4.76 5.66 654 7.41 <br /> 2 3.19 435 556 6.82 8.14 2.83 3.70 454 536 6.14 6.90 <br /> 3 330 454 5.88 732 6.86 2.75 3.57 435 5.06 5.79 6.45 <br /> 4 3A1 4.76 615 7.89 9.72 2.68 3.45 4.17 4.84 5.46 6.06 <br /> 5 3S3 5.00 667 857 1077 2.61 333 4.00 4.62 5.19 5.71 <br /> 6 3.66 5.26 7.14 938 12.07 254 3.23 3.85 4.41 4.93 5.41 <br /> 7 3.0 556 7.69 1034 1373 2.48 3.12 3.70 4-23 4.70 5.13 <br /> 13.95 5.88 833 1154 15.91 2.42 3.03 357 4.05 4.49 4M <br /> 9 4.11 6.25 9.09 13.04 18.92 2.36 2.94 3.45 3.90 430 4.65 <br /> 10 429 667 10.0 15.00 2333 231 2.86 333 3.75 4.12 4.44 <br /> 11 4A8 7.14 11.11 17b5 30.43 226 2.78 323 3.61 3.95 426 <br /> 12 4.69 7.69 1250 21.43 43.75 2.21 2.70 3.12 3.49 3.80 4.08 <br />