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G. DOWNSLOPE I?PM WIDTH <br /> I. If landslope is�6 �more,subtract rock layer width from <br /> adsorption width to obtain minimum downslope dike toe <br /> p.L.7 ft-jpft =__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,_l feet <br /> t b. Multiply rock layer width by landslopeto determine drop in elevation; teel RD ed <br /> Slope Differencejx 2 %i100=_-feet Slope Oltference -!-z- et <br /> uvslooe width <br /> c. Add depth of clean sand for separation (2a) -1 feet Rock Bed width <br /> at upslope edge,depth of rock layer(1 foot) to depth of _A2-feet Downslope width <br /> cover(1 foot) to find the mound height at the upslope edge -�- feet <br /> of rock layer; <br /> 1,,�_ft+ ift + ift= ,feet <br /> d. Enter table with landslope and upslope dike ratio. <br /> Select dike multiplier of 3.5O <br /> e. Multiply dike multiplier by upslope mound height <br /> to find upslope dike width: ,t x 3„tZ =_I 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 (20 to find the downslope height; <br /> ,LL ft+i ft= .3. e feet <br /> g. Enter table with landslope and downslope dike ratio. <br /> Select dike multiplier of 4,S4-- <br /> h. Multiply dike multiplier by downslope mound height <br /> to get downslope dike width: NSA x 2. _ j2 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 /> i feet <br /> j. Total mound width is the sum of < '< - foot , ,a <br /> upslope dike (G-2e)width plus rock <br /> Yy�3 $,fix}. ..._. 'OROCK •°wlotn ,. <br /> layer width (D.2)plus C uosloD•w din lost uoelo9e rr of <br /> downslope dike width(G.2i); 3 - "" toot <br /> 0 <br /> 1,3 ft + loft + _ft = 140 feet , <br /> k. Total mound length is the sum of 40 oownslooe width <br /> JZ tset ; <br /> upslope dike width (G.2e) plus rock layer <br /> length (D.3) plus upslope dike width (G.2e); <br /> 13-ft + _�lLft+eft= �2_ feet :. ' . <br /> !� + 41 - <br /> Total Length <br /> Vownslope tj Pslope <br /> 3:1 l•1 5:1 lid 7:1 3:1 4:1 5:1 6.1 7:1 8:1 <br /> x <br /> 0 3.0 40 SA 6A 7.0 3.0 4.0 S.0 4.0 7.0 8.0 <br /> 1 30 L17 526 618 733 2.91 3.85 4.76 SAS 654 7A1 <br /> 2 3.19 435 536 4A2 514 2.51 3.70 434 S36 4.14 6.90 <br /> 3 310 �7 5.88 732 8.86 275 C3435 50 5.79 6AS <br /> 4 _3 _.�_ .__.70 972 268 3.t5 4.17 4.84 5.46 6,06 <br /> 13M 500 La 837 10.77 261 331 4.00 4.62 5.19 S71 <br /> 6 3,66 Std 7.14 938 12.07 234 321 3.55 4.41 4.93 SAI <br /> 7 3,110 556 7.69 1034 1371 2.48 3.12 3.70 421 4.70 5.13 <br /> 13A SAS L33 11.64 1531 142 1.01 337 4.055 4.49 4.88 <br /> 9 411 62.5 90 13A4 IL92 236 1% 3.45 3.90 430 4,65 <br /> 10 429 667 10.0 15.00 2333 231 186 333 3.75 4.12 4A4 <br /> 11 4A8 7.14 11.11 VAS 30A3 226 178 313 3.61 3.95 426 <br /> 12 4A9 7.69 1230 21A3 4375 1 121 170 3.12 3.49 3.80 4.06 <br />