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• <br /> 0/0-44...11.,•(") <br /> pccn . . <br /> G. DOWNSLOPE DIKE WIDTH ��S 3, G Q� <br /> 1. If landslope is 3% or more,subtract rock layer width from J v' <br /> -,,,.. <br /> adsorption width to obtain minimum downslope dike toe <br /> 5 ) ft- /d ft = 4/G 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 : 3 ft- t.5'-= I. Sfeet <br /> b. Add depth of dean sand for separation (2a) y5 : I I root Cover /0 <br /> at upslope edge, depth of rock layer (1 foot) Si I r•ot ao .ed <br /> to depth of cover (1 foot) to find the separationMin '': .-..: -.. ... • <br /> mound height at the upslope ed a of rock -"Ill" <br /> - "� Slope Difference:Q' et <br /> gg U::"."ope Width <br /> /, 5 ,ft + 1ft + 1ft = 3 Sfeet _hr._feet pork Bed Width <br /> c. Enter table with landslope and upslo a dike ratio. _o_feet Downslope Width <br /> Select dike multiplier of .- y6 . ,e/c1 feet <br /> d. Multiply dike multiplier by upslope mound height ,s-P <br /> to find upslope dike width: . x.3/ " /0).. feet -e. 7 ,a �. <br /> e. Multiply rock layer width by landslopto determine drop <br /> in elevation; Slope Difference <br /> !o x •/ % + 100 = d-y feet <br /> f. Add depth of dean sand for slope difference (2e) at <br /> downslope edge, to the mound height at the upslope edge <br /> of rock layer (2b) to find the downslope height; <br /> a;'-/ ft + 3.5- ft = 9 feet <br /> g. Enter table with landslope and downslope dike ratio. <br /> Select dike multiplier of 4/ 76 • <br /> h. Multiply dike multiplier by downslope mound height(2f) <br /> to get downslope dike width: 7G x3,9 = 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 /> dia feet • 1 ?a 14L --)1 <br /> j. Total mound width is the sum of > <br /> uo3laoe wlacn � <br /> upslope dike (G.2e) width plus rock : ,__/Z re,t +.> , (iw y ci; Y <br /> layer width (D.2) plus �� , . ":' <br /> downslope dike width(G•2i), a wllooe wIatn . .. _ Lo31006 Oto: <br /> re9c ,,,�� reef <br /> + + feet �,{;� <br /> ft / ft a <br /> ft Z .,.. <br /> Z <br /> k. Total mound length is the sum of <br /> f <br /> • : ° ' <br /> ' <br /> » <br /> , <br /> upslope dike width (G•2e) plus rock layer ; < (°Wbwn ¢ J <br /> t <br /> i>'iG;:j;4..A: '. rra .x .0!i.:i <br /> i: <br /> length D3 plusupslope diked G ) . � <br /> Gc�.. / /Z •ft + G ft + /Z ft - ?..P- feet : :: <br /> 3 ; tf ai <br /> . Q7,. <br /> 6 p 4� "- A25,t <br /> Total Lenycn AD g <br /> Downslope L pslope It <br /> �`' <br /> 3:1 4:1 3:1 6:1 7:1 3:1 Ll 3:1 6:t 7:1 Ll <br /> %dope <br /> 0 3.0 4.0 3.0 6.0 7.0 3.0 4.0 5.0 6.0 7.0 IA <br /> 1 109 4.17 316 6.36 153 2.91 3.63 4.76 3.66 634 ' 7.41 <br /> 2 3.19 433 3.54 6.82 1.14 163 3.70 4.34 336 6.14 4.90 • <br /> 3 230 3.61 732 6.66 2.75 337 433 3.01 Sro 6.19 <br /> 3.41 4.7 423 7.69 1.72 261 4.17 434 3.46 6A6 <br /> 333 5.03 667 157 1077 2.61 4.00 4.62 3.19 3.71 <br /> 6 366 3.26 7.14 9.31 12.07 131 3.23 3.63 4.41 4.93 5.41 <br /> 7 330 356 7.69 1034 13.73 • 2.4 3.12 • 3.70 4.23 4.70 3.13 <br /> 6 3.93 3.66 633 1134 15.91 242 3.01 337 4.03 4.49 4.141 <br /> 9 4.11 6.23 9.09 13.04 18.92 236 2.94 3.43 3.90 4.30 465 <br /> 10 429 6.67 10.0 13.03 2333 3-31 2.66 313 3.73 4.12 4.44 <br /> 11 4.41 7.14 11.11 17.66 30.43 2.26 276 313 3.61 3.93 4.26 <br /> 12 444 7.69 1250 21.4.3 43.73 2.21 2.70 3.12 3.49 3.40 4.1 <br />