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. � .+s-- , . . ' . <br /> �- G. DOWNStOPE DIICB VYID'TH • � <br /> • 1. If landslope is 3°l�r ar more,subtract rock tayer width from • � <br /> adsorption width fio obtain minimum downslope dike toe for <br /> absorption: . <br /> �ft- � ft= �� feet � � <br /> 2. Calculate minimum mound s4ze based on geomet�ery: <br /> a. Determine depth of clean sand fill at upslope edge of rock <br /> layer:Se�rat�on 1.,__feet <br /> b. Multipty rock layer width by landslope to determine drop .� ::,�,�„,,,�, ,. <br /> in elevation;Slope Di f ference � "��:�:�: � �x� <br /> �x � �,+100= �Z feet •����_:. ����'� .���;� '.,° <br /> ..�:, <br /> ,�. , <br /> a Add depth of rtean sand depth of clean sand for �» -�a�� '= ,�. � � <br /> sepazation at upslope edge(2a)to depth of rocic tayer to � ���� �1;��:�:: <br /> rock depth and the depth of cover to find the total mound �»""°�_. <br /> height at upslope edge of rock layer; <br /> / ft+ 1 ft+ 1 ft� -3 feet <br /> d. Enter table on page bottom with landslope and upslope � <br /> dike ratio. Select dike muItiptier of 3•3 3 . � <br /> e. Multiply dike multiplier by upslope mound height � <br /> to get upslope dike width: 3.33 x.�_a �0 feet <br /> f.Add the depth of slope difference(2b)to the upslope . <br /> height to get the downslope hei�t <br /> /Z + 3 � �1. feet <br /> g. Enter table on page bottom with landslope and � <br /> downslope dike raHo. S � <br /> Select dike muItiptier of . • <br /> h. MulNply dike inultiplier by downslope mound height ' � <br /> . to get downslope.dike width: s x y 2 � Z� feet <br /> � i�. Compare the values of step G.l and Step G.2h. Select the . • <br /> greater of the two values as the downslope dike width; <br /> Z� feet � <br /> •���.� o� {ti{ti ia• {r{�.{..;+{ t� <br /> j. Total mound width is the sum of upslope dike , t�a�W�ta� '�'�`�''� ;„r�r��,��y�s�� <br /> width plus rock Iayer width plus downslope `:4:►��, " "` "`, `` ``` ''�' ` , ` ' "`�`�`:< <br /> dike width;� • . �� �� , . �; ,; <br /> �ft+ Z� ft+�_ft= 5r7 feet vp.�.o�.v'�w~'~u�ttid`'`°f"' ` ` ` ` ' ' <br /> �r �r{v{"4{v{V• • ���11�_ <br /> k. Total mound 1 th is the of u slo �►�;�►�►{:►'�;�;���� ��������.����.�►��.• <br /> ... . . . ... . . . .. . . . ,•.ti..j <br /> p � 'sr'tv''v�.�+r;+r�r{sr�r''t,' ibwnrlop�~f!!�i'1�ib",•h 4 t,si <br /> .: . dike width plus r 1 r length plus �G ;v�►��►4.;;►�.{v�`►�►; �v�,�,w�.w�►�►�w�,,w;►�. <br /> . upslope dike width• ��c�i . �'���`���� ��`���`��`��;��`�`'���-'��', . <br /> : • ft+ �t+ ft= feet r�L„,� <br /> kl �.1 6e1n8� &1 7:1 3:1 41 1 � &1 9:1 i9 <br /> � <br /> 0 1A 4A S.0 6.0 7A 3.0 4.0 5A i.0 fA iA <br /> 1 3A! 1.17 S.� � 9.5' • t91 � � i.fi i.5� 7A1 <br /> ! �l� 13S ES� R!3 �.1� tis 1.70 l51 i1i i.1� �.90 <br /> i �70 I�S� 5.81 7.32 �.l� 4.7s fS7 �i i.0� f.7f iAS <br /> � !A1 r.7i �.25 7.ef f.71 2.� �.t� �.17 r.N 5.� �.Oi <br /> s �S3 5.00 �.67 �.5f f0.7f 7.61 �,3f �.00 4.b2 S.if s.71 <br /> � �.65 b.2� 7.1� l.3� ttA� � � 3.� Ml !.9' iAl <br /> f Le0 8.6� !.M • 10a� 1f.7� iu l.12 �.70 1.1! �.70 iaf <br /> t �.�3 S.e� W 115� Ib91 1�2 1.U� 3S! I.�S lN �t <br /> f U1 i.76 !.0! 1�.M 1R91 t3� 19� �.If l.90 {.30 {�S <br /> IO �2! i,67 10.0 15A0 3�33 131 ZK �3f f9S �.12 �M <br /> » aw �a� • ua� r.ss �� tu t� u� �.a �.9s ��t <br /> �: a� �.�s �iao x�.0 �aaa �.b zao �.�: a.a a.eo �.a <br />