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t�LU <br /> . DOWNSLOPE DII<E WIDTH <br /> . If landslope is 3% or more, subtract rock layer width from -_ <br /> , <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 W�•��-� <br /> layer: Separation �feet `�'m°��` <br /> b. Multiply rocic layer width by landslope to detemune drop ' '� <br /> in elevation; Slope Difference iDDI<RiM'l•LGrt/Ie�ZROCtIRO!'R <br /> _,...,_._ <br /> � x 6 %1100 = 1=� �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 /> �, 6 ft + � ft + � ft+ ft �-� ft <br /> d. Enter table on page E-18 with landslope and downslope <br /> dike ratio. Select dike multiplier of �S a-� <br /> e. Multiply dike multiplier by downslope mound height <br /> to get downslope dike width:S�= x,�� i =�_ft <br /> g. Compare the values of step G.1 and Step G.2.f. Select the <br /> greater of the two values as the downslope dike wicith; <br /> feet ��,�,���� <br /> h. Calculate upslope dike width using upslope mound -"-�' <br /> height and upslope dike multiplier from page E-18; '��;,�i:' <br /> � .� x�,:-� _ ;D ft - u��au�,,,;a�cn� <br /> i. Total mound width is the sum of upslope dike width plus °°w'�'�°P`d�W;�`r ct, <br /> rock layer width plus downslope dike width; . <br /> � ft + �� ft + ���' ft= �' �� ft <br /> 3. If landslope is 2.9 percent or less,basal width includes botti the <br /> upslope and downslope dike widths. ' <br /> a. Calculate downslope dike width using steps G.2.a. � <br /> through G.2.f; feet � <br /> b. Calculate upslope dike width using upslope mound 1 <br /> height and dike multiplier from Page E-I8; <br /> x ft= ft <br /> c. Add downslope dike width to upslope dike width to rock � <br /> layer width <br /> ft+ ft + ft = ft <br /> E-18 <br /> wns ope PS� <br /> 3:1 4:1 5:1 6:1 7:1 3:1 �:1 51 6:1 7:1 8:1 <br /> !.ilop� <br /> 0 3A �A SA 6.0 7D 3D �A SA 6D 7A 8A <br /> 1 3.09 �19 5?b 638 753 2.91 3ffi �76 Sbb 651 7.11 ,:.`'� <br /> 2 3.19 135 556 6ffi 8.14 2.R3 370 45� 536 6.1� 6.90 ( .:' '� <br /> 3 330 454 5�8 732 896 2.75 357 435 SDs 579 6A5 O �' <br /> 4 3.�1 �76 6?5 7.89 9.TZ Z.68 3A5 �.17 48t S.f6 6�6 �`""� <br /> 5 353 SAO 6.67 857 10.T7 2.61 331 4.00 4.62 519 571 <br /> 6 3.66 5?b 71� 93d 1207 251 323 3ffi 4A1 L93 SAl <br /> 7 3B0 556 7b9 1034 1373 2.46 3.12 3.70 4.73 �70 5.13 <br /> 8 395 5.86 83'i I15� 1591 2.�2 3.m 357 �.� �.�9 488 <br /> 9 4.11 62S 9.09 13D� I8.92 236 2.41 3.15 3.90 �30 4S' <br /> 10 {19 6b7 IQA ISAO Y�33 231 2b6 333 375 412 4M <br /> ti �A8 7.1� 1111 17b5 34.19 21b 2.7i 32i 3b1 3.95 �16 <br /> 12 �.69 7b9 1250 21.t3 43.75 221 2.70 3.12 3.49 390 4.Os <br />