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' U <br /> DOWNSLOPE DIKE WIDTH <br /> �. .If landslope is 3% or more,subtract rock layer width from <br /> adsorption width to obtain minimum downslope dike toe ', <br /> ft- ft= ft <br /> . Calculate mound height at edge of rock layer on downslope <br /> side; <br /> a. Determine depth of clean sand fill at upslope edge of rock . .. bw <br /> layer: Separation feet <br /> b. Multiply rock layer width by landslope to determine drop <br /> in elevation; Slope Difference snarns.sarsi :�orswiorw <br /> _ l x�%+100 = ft <br /> c. Add depth of clean sand depth of clean sand for <br /> separation at downslope edge to depth of rock layer to <br /> depth of soil backfill to get mound height at downslope <br /> edge of rock layer; <br /> Q7 ft+ ft+ ft+ ft=_-ZL-�t <br /> d. Enter table on page E-18 with landslope andApwnslope <br /> dike ratio. Select dike multiplier of <br /> e. Multiply dike multiplier by downslope mound h Mht <br /> to get downslope dike width: x _ ft <br /> g. Compare the values of step G.1 and Step G.21 Select the <br /> great f the two values as the downslope dike width; <br /> feet <br /> h. Calculate upslope dike width using upslope mound - <br /> height and u sl Pa dike ulti lier from page E-18;- <br /> x ft vim.danwidmW <br /> L Total mound width is the sum of upslope dike width plus DownsIq*dike width <br /> ``' <br /> rock layer width lus downslope dike dth; _ <br /> �ft+ ft+ ft= ft -t-�o f n-�-g3 <br /> 3. If landslope is 2.9 percent or less,basal width includes both the <br /> upslope and downslo dike widths. <br /> a. Calculate downslope width using steps G.Z.a. <br /> through G.2.f; feet <br /> b. Calculate upslope dike width usin o e mound <br /> height and dike multiplier from Page E-18; <br /> -X-ft= ft <br /> c. Add downslope dike width to u e dike width to rock <br /> layer width <br /> ft+ + ft= ft <br /> E-18 <br /> 31 ¢1 54 61 71 3:1 41 3•1 61 71 31 <br /> %SIG" � <br /> 0 3A 4.0 5.0 6A 7.0 3.0 4A SA 6A 7A 6A <br /> 1 3.09 4.17 5.26 636 753 291 3.16 - 476 SA6 654 7.61 <br /> 2 319 435 556 6.62 $14 293 320 456 536 614 630 <br /> 3 330 426 S96 732 196 273 357 435 5M 529 6A5 <br /> 4 3A1 476 625 7.11 972 231 3AS 417 494 SAB 6" <br /> 53.S3 SAD 6A7 as 1077 2A1 333 4A0 4.62 519 571 <br /> 6 3.66 5.26 714 916 1207 256 3.21 396 4A3 4.91 SAI <br /> 7 390 S56 7A9 1034 1373 . 2A6 3.12 370 423 4.70 513 <br /> 395 596 133 1154 1591 2A2 '3.03 W 4z 40 496 <br /> 9 411 675 9A9 13A4 1192 236 296 3.6 390 430 4AS <br /> 10429 W 100 15A0 2333 231 296 333 3.75 412 4A4 <br /> 11 4A/ 714 1111 17AS 3043 236 276 329 3Ai 396 4.26 <br /> 12 4.69 7.69 1250 21.43 43.75 221 2.70 3.12 3A9 390 4M <br />