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^��-C"uY�-- ��c��_.���-\�j t-�u <br /> . � DOWNSLOPE DIICE WIDTH <br /> . If landslope is 3% or more,subtract rock layer width from . <br /> adsorpHon width to obtain minimum downslope dike toe : <br /> �=ft-1�ft =_,,�_ft <br /> . . Calculate mound hei�ht 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 /, o feet '� �� <br /> b. Multiply rock layer width by landslope to determine drop - <br /> in elevation; Slope Di�ference ,...�.�..,,r.:.�.� <br /> _,.».._.._ <br /> �U x_��o+ 100=_Lft �••._• ,• <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 /> ��ft +_ 1.c� f t+_�f t+_�f t =�_f t <br /> d. Enter table on page E-18 with landslope and downslope <br /> dike ratio. Select dike mulHplier of_ fs , c.�� <br /> e. Multiply dike multiplier by downslope mound height <br /> to get downslope dike width: �x t.G�_�_ft <br /> g. Compare the values of step G.l and Step G.2.f. Select the <br /> greater of the two values as the downslope dike width; <br /> a.� feet ��,.►,.�a� <br /> h. Calculate upslope dike width using upslope mound r <br /> height and upslope dike multiplier from page E-18; <br /> ��X 1.SSL =�_ft u�am..�e�tw <br /> i. Total mound width is the sum of upslope dike width plus °wir°P'°�` `' <br /> rock layer width plus dorvnslope dike width; <br /> _�ft +,��ft +_�ft= �ft <br /> 3. If landslope is 2.9 percent or less,basal width includes both 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 <br /> height and dike muldplier from Page E-18; <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 /> �� �� <br /> �:1 k1 S:t k1 71 !:t �1 S:1 61 71 N <br /> � <br /> 0 �A �A bA iA 7A �A �A bA iD 7A IA <br /> 1 �AI �.17 S�f 6]! 7S1 l.91 l.SS 1.76 S66 iSt 7/1 � <br /> 2 3.1f •3S 536 �!2 �.1� 1.lJ 310 IS4 SJ6 �.0 �.t0 <br /> � aao �s� s,e �.s� �x 2n as� �as s.ae s.�v �es <br /> � a�� �.�s a�s �,o �n i.se a.as �.v �� s�c to� <br /> S 7S� S.OD L.67 �S! 1077 2b1 �33 �m �.62 S.If !]1 <br /> 6 a.66 5.26 7.1� Y3/ 17.07 2S1 �?� 7�5 �A1 �.09 SA1 <br /> 7 �.l0 SS6 7.69 1031 13.73 1As 7.tI !]0 1?3 �10 saa <br /> t �.95 S.M tb I1St lS.fl t.�2 1A1 �S7 1.� �.W 1JI <br /> 9 �.11 25 1D1 13A1 �e.n 236 2.91 7AS 3.v0 �JO �i6 <br /> iC---_42�_____ � _IOA__...__.lSAO�_..p�7..... 2]I._......_�i� SSl 3.76 1.12 4M <br /> 11 IA1 � 11.11 17,65 �OA1 Z�6 1.71 3?J 7.61 I.tS �2i <br /> 12 1.N !� 1 2t.�f 1175 221 2.70 �.I2 �M l.10 �.01 • <br />