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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 /> a�"� ft- 10 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 �..� , feet <br /> b. Muldply rock layer width by landslope to determine drop ,,,,�,,,, ;. : , <br /> in elevation;Slope Difference ��-� <br /> �x�_%1100 = ,� _ feet ��- <br /> c. Add depth of clean sand depth of clean sand for ��..� �w��--� <br /> separation at upslope edge (2a) to depth of rock layer to �°�� � '` <br /> rock depth and the depth of cover to find the total mound °'�-"'�'�'d"'`_ <br /> height at upslope edge of rock layer; <br /> 1• '� ft + 1 ft + 1 ft = 3,7 feet <br /> d. Enter table on page bottom with landslope and upslope <br /> dike ratio. Select dike multiplier of 3 •4 S <br /> e. Multiply dike multiplier by upslope mound height <br /> to get upslope dike width: 3•1 x 3•�S= �� feet <br /> f. Add the depth of slope difference(2b) to the upslope <br /> height to get the downslope height <br /> 3 .'� + .�_- �}. 1 feet <br /> g. Enter table on page bottom with landslope and <br /> downslope dike ratio. <br /> Select dike multiplier of 4•� L <br /> h. Multiply dike multiplier by downslope mound height <br /> to get downslope dike width: 4• � x y�� = a o 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 downslope dike width; <br /> �O feet <br /> j. Total mound width is the sum of upslope dike R«keed�widi����` �'u�io�oii�ewid�;1:��'�'�'�;;:;;.:; <br /> width plus rock layer width plus downslope �'`�` ���'`''`'`` �:���:�::•::�� <br /> ''�"��'' Koc Length .�'_;.:-�► <br /> dike width; :�:� . , , . , , . ::: <br /> . .�:�•:'�::'::;:;�:;;.;�::�::;:.: {.U•�o:.'Dike Wldth� <br /> I 3 ft + �D ft + a O ft = _��feet Upslope•Dike Width�,`�y�� �� P� Pe <br /> k. Total mound len th is the sum of u slo e <br /> g P P �;.:w:::�;:: <br /> ik wi h lu r k la r 1 n h IU � �O�`'�s�ope��bike �a h���'- <br /> d e dt p s oc ye e gt p s <br /> u slo e dike width; <br /> P P <br /> I 3� ft + _(�� ft + �� ft = 9� feet � ��To�a:Lenbth�_ ..•. ..-� <br /> .. .. .. .. . .. <br /> 'a t� -� (��/' -�M' J (� %��S /o� <br /> wns opc ps opc <br /> 3:1 {:1 5:1 &1 7:1 3:1 4:1 5:1 6:1 7:1 8:1 <br /> 9L slope <br /> 0 3.0 4.0 S.0 6.0 7.0 3.0 4.0 5.0 6.0 7.0 8.0 <br /> 1 3.09 1.17 i.26 638 7a3 2.9] 3.8i 4.76 5.66 6.54 7.41 <br /> 2 3.19 4.3i 5.56 6.82 8.14 2.83 3.70 4.iM1 5.36 6.14 6.90 <br /> 3 3.30 4.54 i.98 7.32 8.85 2.75 3�7 43i 5.08 5.79 6A5 <br /> 4 ._.__.3.41._ d.� b25 :.�9_ 9.i2. 2.65 3.4i 4.i' C.& �.Se 6.Oo <br /> ._..._ -__----- .. __...._._. . . __� <br /> 5 353 �.00 eb% 5S7 :U.77 � 2.61..:.'"�.���33 ;.�X� <.62 �.i9 S.il <br /> 6 3.66 5.26 7.1< 9.38 12.07 2..i: 3.23 3.Si d.41 4.93 SA7 <br /> 7 3.80 Sa'6 7.69 ]034 13.73 2.4F3 3.72 3.i0 4.23 4.70 5.13 <br /> 8 3.95 5.88 8.33 t154 15.91 2.42 3.Q3 3.57 4.Q5 4.49 4.88 <br /> 9 4.11 6.15 9.09 13.04 18.92 236 2.94 3.4i 3.90 4.30 d.65 <br /> 10 d29 6.67 10.0 I5.00 23.33 2.31 2.86 3.33 3.75 3.12 d.43 <br /> il 4.48 7.13 11.11 17.u5 30.43 2.26 2.7& 3.23 3.61 3.9� d26 <br /> 12 4.69 i.bi :250 2i.43 53.75 :.21 2.70 3.;2 3.39 3.30 4.Q9 <br />