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E-20 <br /> . '� . �, '���'t��- '�XPf�� S1 D�) <br /> . DOWNSIAPE DIICE WIDZ'FI . <br /> . If landslope is 396 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. Deteratine depth of clean sand fill at upslope edge of rock �•••+�-� <br /> layer: Separation �I �►z feet :� _ . .,. <br /> b. Multiply rodc layer width by landalope to determine drop �-- <br /> in elevation; Slope Dif j�erenct ••�•���� <br /> -- x — 96+100= — ft •p•._• <br /> .— r.._. . <br /> c. Add depth of clean sand depth of clean sand for <br /> separation at downslope edge to de�pth of rocic layer to <br /> depth of soil backfill to get mound height at downslope <br /> edge of ibck laye�r; <br /> 1, s' ft+ l.� ft+��ft+��ft= 3.�ft � <br /> d. Enter table on page E-18 with landslope and downslope <br /> dike ratio. Select dike multiplier of y- <br /> e. Multiply dike multiplier by downslape mound height <br /> to get downslope dike width: � x�,.�_ � _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 width; <br /> t� feet ����► <br /> h. Calculate upslope dike width using upslope mound �'-� <br /> � height and upslope dike multiplier from page E-18; <br /> x s ft u�.�r.ew.�wau <br /> i. Total mound width is the sum of upslope dike width plus °a"'"`°"'•°� N' <br /> rocic layer width plus downslope dike width; <br /> ft+ ft+ ft= ft <br /> 3. If landslope is 2.9 pereent or less,basal width includes both the <br /> upslope and downslope dike widths. <br /> a. Calculafie downslope dike width using ste�ps G.Za. <br /> through G.2.f; �feet <br /> b. Calculate upslope dike width using upslope mound . <br /> height and dike multiplier from Page E-18; <br /> _�x3,� ft=�ft . <br /> c. Add downslope dike width to upslope dike width to rock <br /> layer width <br /> t�(_ft+ �o ft+ � ft= �.�ft <br /> E-18 <br /> �� � <br /> rr �a sa in rs r� �a s1 � �a a , <br /> s <br /> 0 1.0 �.0 6A fA fO !A {� 5D iA 7A �O <br /> > >,a �.n s� ut »s t+� a�s �.r� sic � ��� • <br /> 2 �.tt �Jd b!� N2 �J� �it f.70 �.SI 536 �.1� �.t0 ' <br /> � »o �s� a� �3s �x vs as� us s.oe s.�+ �,as <br /> • � �� � �s �� �n w �,� �.i� �x aac �a <br /> S �S3 S,OD tA �S7 1W7 Zit �3t1 ' �AO IiT S.1f S11 <br /> � �,� a�c �a� +�t u.a� � us a�s ui �.a a,�i <br /> > »o ss� �.a �au » w �.�: �ao �z+ uo aa� <br /> • �+s s� uo us� �s.� ia �.� as� aa � ue <br /> • �a� a.a �:a iaa �an �x i.+� a.� a.�o uo us <br /> �o �b � �an �soo z+a� � as �ac+ sas �.0 a.� <br /> • » � »� nai »� �ou � v� azi a� ��s ax� <br /> ' �t u+ wr z90 ru a�s �o a.i� a�r a,o �:o� <br />