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'7 �. �, <br /> � • G.,. • DOWNSLOPE DIKE WIDTH �� <br /> � 1. If landslope is 3% or more, ��.�btract rock layer width from " �. �� <br /> adsorption width to obtain minimum downslo�e dike toe for '• �' <br /> , ;_ <br /> absorption: <br /> �� ` ft - J �, ft = J � fcet <br /> 2. Calculate minimum mound size based on Seoinetery: <br /> a. Determine depth of clean sand fill at�upslope ed�e of rock <br /> layer: Separatinn /• y� feet ���C1-} 3 . o �?o�"-�N- <br /> b. Multiply rock layer widtlt by landslope to dctermine dro� ,,,��„_ <br /> in elevation; SI���c Drjjcrcrrcc �����R�•� �� <br /> �_ x ?� % -� ]00 = ,'? fce► f-w� ' <br /> �,,,._.� <br /> I l�wd��� <br /> c. Add depth of clean sand depth of clean sand for � __�., -� ����*^-�• <br /> separatian at upslope edge (2a) to deptil of rock layer to I�"`�.��.��"�'__ <br /> rock depth and the depth of cover to find the total mound �>�-����W"FA�' <br /> hei�ht at upslope edge of rock laycr; <br /> �•'-� ft + 1 ft + 1 ft = ? ,�- feet � <br /> d. Enter table on pa�e bottom ��ith landslope and upslope <br /> dike ratio. Select dike multiplier of ��. ? � <br /> e. Multiply dike multiplie; �y upslopc m�und hei�llt <br /> to get upslope dike width: �-t•3�x �,.� _ ��feet <br /> f. Add the depth of slope differcnce (2b) ta tl�e upslope <br /> height to get the downslope height <br /> � . y + • :' _ ? •'� feet ' <br /> g. Enter table on page bottom wilh landslo�e and <br /> downslope dike ratio. . <br /> Select dike multiplier of^!-� .��I . � <br /> h. Multiply dike multiplie: by downslope mound hei�ht <br /> to get downslope dike wid th:?•7 x �- . ' _� feet . <br /> i. Compare the values of step G.1 and Step G.2.h. Select the <br /> greater oE the two values as the downslope dike width; <br /> I ') feet <br /> j. Total mound width is the sum of upslope dike K«k�i��w�d�i;"' ' ' 'u,�:�;��Uk�w'�dw'�'-__�' <br /> .. �..:�'��•���.�.�•.• .....��•, ...�•.�•.•.�•.•.•..�.�..�����'�. <br /> width plus rock layer width plus downslope ��������� ����'��;' �'�°� •: <br /> :�..�,1^��},� . Hcxc Ikv1 Lcnhlh--- C� �.�w <br /> dike width; �.... w�� �� � .' . .��.��-�:::':� <br /> L,� ft + �Q_ ft + �2 ft = '��.feet uPt,�,��ak��w�d��h�i::�:::::::.::::::�. :..;.:,.;:�,.::.,::�,,;...�.��.:.�,:�..:..:..:.�.:.a_ <br /> •.U alo I�kr wld�h <br /> k. Total mound len th is the sum of u slo e �'� <br /> g P P .. .. .. <br /> dike width lus rock la er lei.�th lus :��w�sio��'`fak�"w�a�i;�'�'`' <br /> P Y d P <br /> u slo e dike ti-:dth; <br /> P P <br /> ft + ft + ft = feet � ,.TaalLength. <br /> wnc opc Ps o��c <br /> 3:1 1:1 5:1 6:1 7:1 3:1 1:1 5:1 b:l 7:1 !:1 <br /> L dope <br /> 0 3.0 aD 5.0 6.0 7.0 3.0 4.0 5.0 6.0 7.0 8.0 <br /> 1 J.09 �.17 5.26 b.Nl 7.57 1.91 J.AS IJb S.f1i 6.54 7.l1 <br /> 2 �.19 �.)5 5.56 6R2 8.14 7.A7 3.70 �.54 5.36 6.1� 6.90 <br /> 3 3J0 {.5{ ' S.BA i.J2 B.fK 275 357 ���.3$` S.OR 5.79 6.A5 <br /> ! 3.t1 !76 6.25 7.Ao 9.72 1.FA 3.d: .. �.]7 �.H4 S.4F 6.N. <br /> S 3S7 5.00 6.67 X.57 1D.77 2.R1 3.)] �.(Yl I.I,� 5.10 5.71 <br /> 6 7.I� 5.2e 7.1� o.u+ t7m 2.4 J.7i� J.e; �.q �.07 5.4t <br /> 7 1 Wl 5 S/ 7IN lll i! I1�l �IN 1 I7 1 70 /71 1''fl S 11 <br /> e t v 1 �nn n f 1 I 1�� I�'�I I�t t u� ]4/ ��n 1/v �M <br /> 9 1.11 /.2i o:`0 1J.M 18v2 2.7(, 2.04 S.15 J.utl I.JO �.6i <br /> 10 !20 6.67 10.0 1500 23J3 2.31 2.P6 3.33 3.T �J2 d.cd <br /> 11 �.{� 7.1/ 11.11 17.6; 30�3 7.26 2JA 3.7� 1.61 ]AS �.�b <br /> 17 �b9 7.FA 1250 21A] �1T 2.71 2.�0 7.tI 1/G ].N(1 ��19 ' <br />