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<br /> G. DOWNSIAPE D�WIDTH �
<br /> 1. If landslope is�°6��atore,subtract rock layer width from
<br /> � adsorption width to obtain minimum downslope dike toe
<br /> -� a�•� ft-��ft =_�Zfeet
<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 I• S feet
<br /> b. Multiply rock layer width by landslope � reo�ce�.r
<br /> t feot Ro eA
<br /> to determine drop in elevation; ,
<br /> 51opE DIffC1'eitCe s�p�rat�on t��t ; '
<br /> .�x�_%i 100 =��feet s�ev• oirr.r•��.� .�
<br /> uosiooe w�atn
<br /> c. Add depth of clean sand for sepazation (2a) -�-r«t Roek BeC WIOt�
<br /> at upslope edge,depth of rock layer(1 foot) to depth of �r��� OownsloDe W10t�
<br /> cover(1 foot)to find the mound height at the upslope edge -�-teet
<br /> of rock layer;
<br /> L�ft+ lft+ lft= 3,S feet
<br /> d. Enter table with landslope and upslope dike ratio.
<br /> Select dike multiplier of 3•ti S
<br /> e. Multiply dike multiplier by upslope mound height
<br /> to find upslope dike width: 3.S x�,W S =�_feet
<br /> f. Add depth of clean sand for slope difference(2b) at
<br /> downslope edge,to the mound height at the upslope edge
<br /> of rock layer(2c) to find the downslope height;
<br /> �.S ft+ , � ft= 3•� feet
<br /> � g. Enter table with landslope and downslope dike ratio.
<br /> Select dike multiplier of 4.� V
<br /> h. Multiply dike multiplier by downslope mound height
<br /> to get downslope dike width: 3'q x y•?� _�_feet
<br /> i. Compare the values of step G.1 and Step G.2h Select the
<br /> greater of the two values as the downslope dike width; _ � � _
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<br /> :...
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<br /> Total mound len is the s o f �
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<br /> �q + SS + �q �3 - -
<br /> Totel L�nptn
<br /> ope ps ope
<br /> 3:i �i s:� �:i �:i a:i �:i s:i �i �:i as
<br /> s
<br /> 0 3A lD SA 60 7.0 3.0 �.0 5.0 60 7.0 !A
<br /> 1 3.09 1.17 526 6.38 753 291 3.85 �.76 5.66 65� 7A1
<br /> 2 3.I9 l35 556 682 &1� 2.83 3.7D �51 536 6I{ 6.90
<br /> 3 330 526 732 8.l6 275 �35 S.O6 S.A 6.15
<br /> ��� 1 6 7.D9 9.T2 26b 4I7 lAt S.I6 6.06
<br /> 5 3Si 667 333 �.OD �.62 5.19 S?I
<br /> 6 366 SIf 7.7� 938 12.07 251 �73 3.SS L41 �.93 5.�1
<br /> 7 3d0 556 7.69 103t 1373 2t8 3.12 3.70 1.Z� L7C1 513
<br /> 8 3.95 S� !37 11St 1591 tt2 3.Qi 3S7 LCS �.19 �JB
<br /> 9 �.11 615 9.0➢ 13A1 18.92 236 241 3.15 3.90 t30 �.SS
<br /> 10 fs9 6.67 IOA IS.OD 7333 231 2.86 333 3.75 112 1.1�
<br /> 11 4A6 7.1� 11.11 1�b5 30.{,7 23b 2A 323 3.61 3.95 �1b
<br /> 12 IbP 7.69 1750 21.63 1395 221 270 3.12 3.t9 3.d0 4A6
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