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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 /> ft- )Q _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 I, feet <br /> b. Multiply rock layer width by landslope ' 10°` `° <br /> to determine drop in elevation; t r°ot a° .d <br /> s.peretto <br /> Slope Difference n i..t <br /> /0 x 3 %+ 100 = r3 feetslope Dill orene a . �; t <br /> upslo a Width <br /> c. Add depth of clean sand for separation (2a) feet Rock Bed Width <br /> at upslope edge,depth of rock layer(1 foot) to depth of feet Downslope Width <br /> cover(1 foot) to find the mound height at the upslope edge feet <br /> of rock layer; <br /> /.�< ft_+ Ift+ lft= 3-feet <br /> d. Enter table with landslope and upslope dike ratio. <br /> Select dike multiplier of 3.57 <br /> e. Multiply dike multiplier by upslope mound height <br /> to find upslope dike width: ?.,t� x 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 /> 3.45 ft+_�ft=_j 1 feet <br /> =' g. Enter table with landslope and downslope dike ratio. <br /> Select dike multiplier of 4,Sq <br /> h. Multiply dike multiplier by downslope mound height <br /> to get downslope dike width: q, I x •S f =)�feet <br /> L 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 /> � feet �. <br /> x.•uoslo •wltiii :::<.•:::.:.' • <•:.::::.r::}. }}:•:..}'•}>n.i:':i:..k;;4 <br /> jzi, ;r•.}.�. �_feel t };.}i S::`•<}:Sif::,;::Q:i:; .y}'£•.4:}c::a•:.>::$;'::,;- '. Total mound width is the sum of �t}; v.x:�:;.•.,.x. <�<:��„-` �:,wvx:,A:���«Fsk�..�:, ,:,$��:�:.:v<..>.; <br /> upslope dike(G.2e)width plus rock <br /> Width- <br /> layer width (D.2) plus uof..t M..:to 1 <br /> s sloyy to wletn uo� •wtatn <br /> Jam_feetfen <br /> :•}y:'-::+i-'.,a}•-:'.`: jhu;::'O 'f' f;•a•:i:.f•;f•::.�r;c.4f* <br /> downslope dikewidth(G.2i); �Y <br /> + e tiv� }.y.#::`.. ; C:%•:..}d.,io:Yaf•}:;}.{ {4`,}"•,ft:.{.'v. i�j�J-...::y).•: <br /> ;tiyiQ�%�i :v:i:;?2i#`.: }'?'..W.Y.}..::�?.j:v}}•'.>C'v'+:::��:•:::•}�^if.:ii:>:.'!}J iiL?.i.:t::v�:::.:1. . <br /> p ^:ji•}\:!`{;:}vryry�}:;::• ^::Qui:isi:}Sti:<:?;:;}:;y;:sistivYS'ii:{:�:Grr�:tii}i'>�.y,}(,��.!•�nS•x'•(n <br /> ft+ ft+ m ft HY feet <br /> �,DO f 0 Ot <br /> 0 <br /> k Total mound length is the sum of <br /> upslope to <br /> Pe <br /> dike width G.2e plus rock l <br /> a <br /> er <br /> .yi�::!ifiiii:::•::ri :lengthD 3Plu upslope dikewidth G2e • <br /> I ft sft + ft = -7,2 feet <br /> Jc7 ce 4'7 = lob ion <br /> Total Length <br /> Vownslope UPSIOPe <br /> 3:I 4:1 5:1 6.1 7:1 3:1 4:1 5.1 6:1 7:1 8:1 <br /> x <br /> 0 30 4A 5.0 6.0 7.0 3.0 LO 5.0 60 7.0 3.0 <br /> 1 3A9 L17 516 638 753 2.91 3.85 4.76 5.66 654 7A1 <br /> 2 3.19 1351 556 6.82 8.14 2.83 3 L51 536 414 6.90 <br /> 3.30 451 S98 732 8.86 2.755 0357 435 5.08 5.79 6A5 <br /> 4� 3.11 476 62S 789 9.72-- _ 268- - -3. 4,17 11.114 5.46 6A6 <br /> 5 353 SAO 667 857 1077 2.61 331 4.00 4.62 5.19 571 <br /> K. 6 3A6 5.26 7.14 938 1107 254 313 3.85 4.41 4,93 SAI <br /> 7 39D 556 7.69 1034 1373 148 3.12 3.70 419 L70 5.13 <br /> 8 3.95 598 8331154 1531 142 3.01 3S7 LOS 4.0 498 <br /> 9 4.11 6.25 9A9 13-04 18.92 236 1% US 3.90 430 465 <br /> 10419 667 10.0 ISM 2333 231 2,116 333 3.75 L12 4A4 <br /> 11 4.48 7.14 11.11 1765 30.43 2.26 278 313 3A1 3.95 4.26 <br /> 12 469 7.69 1250 21.43 4375 121 270 3.12 3.0 390 4A8 <br />