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G. DOWNSLOPE DIKE WIDTH <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�.2ft-�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 , � feet <br /> b. Multiply rock layer width by landslope to determine drop „�,�,,Q <br /> in elevation; Slope Difference ��A.� <br /> �x ., "' % �- 100 = . � feet � �-��-� <br /> c. Add depth of clean sand depth of clean sand for "��'" � �����• <br /> separation at upslope edge (2a) to depth of rock layer to R°�,�W'��`}'� <br /> rock depth and the depth of cover to find the total mound °`��'"�`"'''`� <br /> �,°" �_ <br /> height at upslope edge of rock layer; <br /> l. � ft + 1 ft + 1 ft =� . �� feet <br /> d. Enter table on page bottom with landslope and upslope <br /> dike ratio. Select dike multiplier of � � <br /> e. Multiply dike multiplier by upslope mound height <br /> to get upslope dike width: �, � x - '--; = 1 1 feet <br /> f. Add the depth of slope difference (2b) to the upslope <br /> height to get the downslope height <br /> '� • � + . 3 = 3 , feet <br /> g. Enter table on page bottom with landslope and <br /> downslope dike ratia <br /> Select dike multiplier of_ �-) . ��--� <br /> h. Multiply dike multiplier by downslope mound height <br /> to get downslope dike width: ?.Y x y-�� _�_ feet <br /> i. Compare the values of step G.1 and Step G.2.h. Select the <br /> greater of the two values as the do�vnslope dike width; <br /> I '�_feet <br /> Total mound width is the sum of u Slo e dike a«k�a'width�.....• . ���••Upslope.Dike Wldth����. �� �•',.}_::;., <br /> J• P P �-�-:�:. <br /> �vidth plus rock layer width plus do���nslope r;.;.......::.......�•••:��.,..,:..,:......,.:: :;;.-..::�.....: :: .��.:i:.•:`:::::..: <br /> � K«k lSed Length <br /> dike width; �` `�;;:�, �*��'""'" <br /> �� ft + �ft + � ft - �_feet uPSio�`�����v;d��;__i-'-_::::::...�:..:.::'.;:"..:..'::..:..p...�............:..���.i <br /> _ •..0 si� txk�w;a�, <br /> k. Total mound length is the sum of u slo e <br /> P P <br /> �:'.;�' Downslope��Dike�1Nidih�-�--���::•.; <br /> dike width plus rock layer length plus <br /> u slo e dike width; <br /> P P <br /> _�_ ft + �,� � ft + I a, ft = �'�2 feet .��.�� .��.�� ��c.��-���� � _� <br /> . .. .. . . .. .. .. .. .. . <br /> �� -4" � }� -�I'" 1/� /(7� � Towl Le:,�L'�__/Z <br /> /v L <br /> owns op� ps opc <br /> 3:1 4:1 5:1 &1 7:1 3:1 4:1 5:1 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 6.38 7.53 291 3.&i 4.76 S.t6 6.�4 7.47 <br /> 2 3.19 4.35 5.56 6.82 8.14 2.fi3 3.70 4.."ri 5.36 6.i4 6.90 <br /> _.,�__. 330 C4.54 �) 5.88 . 7.32 8.85 ?T '�3.57 -� 43i S.Q4 5.79 6.45 <br /> 4 3.a1 476 6.25 � 7.av 4:2 �.i� __,� c.;7 q.g; 5.�5 6.(k; <br /> = 353 alb 6.67 S5, :0.7 ?.6: 33s ..t`..) 3.r� �.;9 SJi <br /> 6 3.66 516 7.14 9.3& 12.07 2.�.i 3.'t3 3.b.i 4.41 4.93 SAl <br /> 7 3.80 SS6 9.69 ]034 13.73 2.18 3.12 3.70 4.Z3 6.70 5.13 <br /> 8 3.95 5.88 8.33 1154 15.91 2.42 3.03 3.57 4.05 4.d9 4.88 ' <br /> 9 4.11 6.25 9.09 13.04 1&.92 2.36 2.94 3.Qi 3.90 4.30 4.65 <br /> 10 429 6.67 10.0 15.00 23.33 2.31 2.86 3.33 3.75 4.12 4.4A <br /> 11 4.48 7.14 ll.l] 17.6i 30.43 2.26 ?.78 3.73 3.67 3.95 426 <br /> 1? 4.69 7.69 1750 2'..43 13.75 '..21 270 3.12 3..9 3.80 4.G8 <br />