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G. UOWNSLOI'E D1K�. w1u1i-i ' � <br /> 1. If landslope is 3% or more, subtract rock layer width from <br /> adsorption width to obtain minimum downslope dike toe for ' ' <br /> absorption: �� <br /> �c .�ft-�ft =�� 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 . 3 feet <br /> b. Multiply rock layer width by landslope to determine drop ,,,o,� <br /> in elevation; Slope Difference ��� <br /> /o x �% �- 100 = •�feet ��--� <br /> c. Add depth of clean sand depth of clean sand for �� �w��--�• <br /> separation at upslope edge (2a) to depth of rock layer to �°d��'""�'\ <br /> rock depth and the depth of cover to find the total mound �'-�-`"�'��`. <br /> height at upslope edge of rock layer; <br /> I•3 ft + 1 ft + 1 ft = 3.� feet <br /> d. Enter table on page bottom with landslope and upslope <br /> dike ratio. Select dike multiplier of 3•3� <br /> e. Multiply dike multiplier by upslope mound height <br /> to get upslope dike width: 3 ,3 x .�� _ ��feet <br /> f. Add the depth of slope difference (2b) to the upslope <br /> height to get the downslope height <br /> �, � + .j = 3 ��feet <br /> g. Enter table on page bottom with landslope and <br /> downslope dike ratio. <br /> Select dike multiplier of S. D <br /> h. Multiply dike multiplier by downslope mound height <br /> to get downslope dike width: 3,?� x S,o = 'i 7 feet <br /> i. Compare the values of step G.1 and Step G.2.h. Select the <br /> greater of the t��o values as the do�vnslope dike width; <br /> 1 '� feet <br /> j. Total mound width is the sum of upslope dike Kak�i��w-�d:h'���`��`�'::��::�uPSio,�'o�;�e'w�d�;.::ii:.:::`'�`�;•';::;.:. <br /> width plus rock layer width plus do�vnslope ;•:�.::�:�:: �� ;�� ������'� �����`����' ��:��;��;�:': <br /> .• . Kock l3ed Length �� <br /> dike width; ::�..�:a`<: �=����t� :.�.: <br /> :. ....� . . . . ..�.�::::��::�: <br /> '...'�'"•.'.. . ................ .u..5io':.••��wid�i; <br /> I I ft +� ft + �_ ft = �feet Upslope DikeKtidch?L_.. .:.:`::.�:?��:�:��:�:��:�::�:?:�� P � �-�- <br /> k. Total mound len th is the sum oE u slope . <br /> g p t' `�:�•` �Downslo�.�.��.�Dike���Width.'�.��.�..� <br /> dike width plus rock layer length plus � ��. �='` <br /> upslope dike width; , <br /> I 1 ft + ��_ ft � - ? �-- t� _ �o feet � ... .::�::T��A,�,e���:�._.�o . .. �� <br /> ! '� + �� + � � 'o�� /o�. ' <br /> � owns ope ps opc <br /> 3:1 !:1 5:1 6:1 7:1 3:1 4:1 S:1 6:1 7:1 8:1 <br /> %slope <br /> 0 3.0 4.0 5.0 6.0 7.0 3.0 4.0 5.0 6.0 7.0 8.0 <br /> 1 3.09 4.17 5.26 0.38 753 ?.91 3.55 476 5.66 6.'s4 7.41 <br /> 2 3.79 4.� 5.% 6.82 d.l. 2.53 3.70 4..i4 5.36 6.14 6.90 <br /> 3 3 i0 4..i: �.54 7.32 F�.; _,- 357 4.3.i 5.08 5.79 b.a� <br /> E 3.41 ..76 0.�� 7.5y .. ' -.. ...,: .. CS» �.16 6.Gi, <br /> J 3�3 � _.UJ c.67 eS; .,..-.- _ ., ?.33 :.Ri :.h_ S.IY �.?: <br /> 6 3.5F, 5.26 7.14 9.39 12l.'; _." � 323 3.85 4.41 4.93 5..1 <br /> 7 3.80 S.S6 7.69 1034 13.'3 2Ati 3.12 3.70 423 490 5.13 <br /> 8 3.95 5.58 8.33 ll54 1.i.91 2.�12 3.03 3a7 4m 4.49 4.&8 <br /> 9 4.11 6.'v 9.03 13.04 1b92 �-3G 2.94 3.45 3.90 430 4.65 <br /> 70 4.29 6.67 ]0.0 1�.00 ?'s.33 ?.3t 2.56 3..i3 3.i� 4.12 4.4-'. <br /> 11 4.48 i.:4 ]1.11 17.6i 3C..� ?:� 2.7R 3.23 3.61 3.9� ... <br /> 12 4.69 i.69 1250 21.43 ._.�� .._. 2Jb 3.12 3.»9 3-b) 4_Ca <br />