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i � � .
<br /> G. DOWNSLOPE I��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-1�ft=�_feet
<br /> 2. Calculate Minimum�mound size based on geometery:
<br /> a. Deteraune depth of clean sand fill at upslope edge of rock
<br /> layer: Sep�aration� /.o feet ;
<br /> b. Multiply rock layer width by landslope � re�r;co�.r
<br /> to determine drop in elevation; ' , t reot Ro .a
<br /> Slope Difference S�peratlon d e..� ;
<br /> x %i 100= feet s�ev. crr�.r.��• �2 e�
<br /> 1sZ_ �.- � uosiooe w�atn
<br /> c. Add de th of clean sand for se azation (2a) �-r�et °'
<br /> P P ao�k eea wiacn
<br /> at upslope edge,depth of rock layer(1 foot) to depth of �re�t Downslope W1Ctn
<br /> cover(1 foot)to find the mound height at the upslope edge �+°°`
<br /> of rock layer;
<br /> /.o ft+ lft+ 1ft= 3,c� feet
<br /> d. Enter table with landslope and upslope dike ratio.
<br /> Select dike multiplier of 3 .��
<br /> e. Multiply dike multiplier by upslope mound height
<br /> to find upslope dike width: 3,1�. x 3•� _�_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 /> 3,o ft+ . � ft= 3"7 feet
<br /> g. Enter table with landslope and downslope dike ratio.
<br /> Select dike multiplier of S.Ss�
<br /> h. Multiply dike multiplier by downslope mound height
<br /> to get downslope dike width: S. b x a. � = aL feet
<br /> i. Compare the values of step G.1 and St�p G.2h Select the
<br /> greater of the two values as the downslope dike width; _� `_
<br /> '>i4::.::t?•'r.i.::'i:.iii:^iiii:•ii:•'ri:•:ii: : .inM:n:::i•:i?:•i%;•$4;;'i:;Y:iii':�>:'v::ti::!:`i:y i:?:+:
<br /> a � feet :�:<:��<.:>::::::>:::...::::::::::::::.;s::>����:����•:�� r;$ :::<.:::.;:;:>::;:::;<::`;::::;><;:>:::»
<br /> :`;:;it;;;•#rf:;UDtlo •F/tOtll�.t;f::,3;:, <•.}S'.�:;�'��;,,..�,u'S:.:r.:'`:::g;��;:�::;t:��;'�';':•::•"•+'.'•;5:::'•':%2
<br /> r;f�"y�y• . L : ..{;•'.y�t..:.,hnrb/.••r.•:.:��::;
<br /> j. Total mound width is the sum of '"�''l+' t��I ! •1��� '%;.�>...<:�:�...},.,:.;:f::>
<br /> :;:r`�. � } •X+;�; . '�r�UifY.%+5:.
<br /> i:� ' ,
<br /> }:•1,¢•.. .,• ',�•:S%?:M . . ..... ♦... :..{.A:'::•i}:•
<br /> �.+.�.....v. r
<br /> :j;>:;:4Y'Y;, W. '.�r�r:.:.{.f:�,j
<br /> � � 'h:� � . h'I�ru
<br /> upslope dilce(G.2e)width plus ro :;:>�` ;�s� �9 w�acn ,..�:�;;;.E,�:;
<br /> layer width (D.2)plus ` .::::.....,".,.:.�"': �••� . ...
<br /> g uosioo�wia�n uosioo��wiatn
<br /> . . . - �n�t ...... t e
<br /> ....,,;:.
<br /> . s ..::..... .,.. ::... . • :;,.. �'�x€�• •::<..:;;.,:�:�
<br /> : �,�:>^'� ;<h;:.;:;::
<br /> downslope dike width(G.2i), � �:;,;�::;�;; �s.°.:.� ,"" ���, ��.:�:��r��w`:,�::>:;':;�..
<br /> o :%::kf�;:r£.8:'.,:;#�i�.�.:.;. {:.W}, .+;:�; ,3, . :.a:��5'<::..':{?::;:;;i:::.S'.:�tuf:8::..'•%2$:;':Yf::;:;
<br /> � � .q:;•.;:;�..n•$5;c�!t<•q�t.�.:;. ;(.,+.;:,!..:.:>..:.�#'<.;.'.:..>.:.•::�,..::
<br /> + a ft - a feet � .:,.<:.<...::.... .:,.:� :.�>:x.;<.:;,.:.::::><;::>;<»::::>:r<:>::::_.:::::<:::<:a�;:::<:.:::�::
<br /> ��ft+ �n ft � � :�':$:�:::':::.'.{>:f:.`•X:s:;:t;.��;,:2�•.qt:•.'::'r�.•>..:.3:$,;.�ta5.....::..}�.,�•,.+..<::.>::<.:.<::<..•:::, ......
<br /> ;<•;•+oi:>>.v .<., ..• r:... •::;2,5.,.,;r::<
<br /> . �'}D 'n�::;i�:�:t;••;>:;':00 wns t 00�W IC l ll't::�':•it;:;;S:`•i.,:;,�c:;::S'�;;:%;'::R>:;:c•�;•i:
<br /> ;:;•::::..;o:..:.:..:G° 3 .,,� �� ,o,yro, s
<br /> e sum of �<`<%{�%'`•�<�:'s.i>::#�:#;}::y::a';v'>'..::�t�;?;>: 2::;:;;;:::3:`>:::4.:^'�.,�..,...,��c:�:>��">'�:i
<br /> iC. Total mound length is th :: ..�,. �L r�ec : ...:,:;•�:><s r:Y{.:.n..;:;�:<:.:
<br /> .,;.,�.�.,.}:. ..?. . ,.:?t. .e�'�,°:�r',`. 4Y;�{h"��^r:f::,`<,•':3:;:::::`•.'•.�$::'r�.�',.;x';.•'•^;.:;:;r:.::•:
<br /> y�l+.}, ' '3.;:. /v i,S S.. }i4.:>.;:;4i�!•i
<br /> ,.O '• 'p�:: y�� }Y, }:;�:Y,,�i,i::i:�:•:•;'r,�ii:':i:�•y:.Win"::ii:i:.•.•
<br /> u slo dike width(G.2e) lus rock la er .>:>:::�v�;�;._ � �,<. �� . . ..<f:.`��.�,��..�. v�;.,.:.<::::.::<:;. ; ,.::<:;..���:��..........:f.�
<br /> P Pe P Y :;:�;�,�,�::.>::����:.:��::.:�:.<::���v 3;,:$:.���.�, x. y. s w;4:<:.::::><::>;z>:.::.:::.,.:r<.>�
<br /> . . • .,>�'w,:;s:::. ;�. �;..;:�..��..s�•�;":.�`�;�C�.+�:::.�`•��.y.::,.:> <::z:>:
<br /> ':;Y�r.:'+.• " s c.i,:•::::; . :<':i.^;:::..�:.
<br /> �;�.�rq�T�,..�` i''';�,$`?'r`'•::k''i?:}!:;•::•:.;,;:•::•>::'•':`';v :5••;
<br /> 'ke width G.2e � >• .�. <:>;<;<;:;:�;::»::>r:,
<br /> len D.3 lus u slo e di ( ); ::::�;�:viw.ri:Y:.:x:>ry.:.� �:����:,�. r:::r.r:>:.....;.:.:;;s;.,-;;;;:::�>.:..:>:
<br /> 8th( >P P P >�x,::�<�v:� �:�...: �,�..; :�;���>�::;<.:,:�::;;;;<><.>::..;<;;:<>;<::>;:::>:::<;::
<br /> ::'i: .•�+{.,S��r�c..;�i•h l n::$ +•,r�...y,. �r?�:::s>f•' :::.. '?r.�:::;•::.'•::::::.n.
<br /> '.E:..,/.a �i, �+�.�:+��':' :, ���#��,.��..,.",,',x:•.<::>:;y;; Y,F.:::.::y:;;:S.��::;:,:r•::::::•:;:;�'::�••:
<br /> � ��%4n;�2;;v;>}�:<}�fr>.:i{•,:Si��'YI;Ji.�,,•{3�+,n .:f:4�
<br /> �ft+��ft+�_ft- ��feet '`
<br /> :'•:{{v:r..�......n.: •v:tit. �S,w,,:..{•n•.v:ii:;::if}:•i>i:t�ii:<:,4,iv::i::i::ii::;:i':Si:�:i:::::t?<�ii$)i:�'i
<br /> ;:.>. .
<br /> ..:.:.
<br /> :.:.,..�:::: ... � .:,
<br /> ,.:::.:::.::::::�:::f.,:,.:...:::;::<:. ......�:..�..... .... ...............:....:.........................
<br /> d� + So -r a1 - � a -9a -
<br /> rotal unptn
<br /> ope ps ope
<br /> �:i �i s:i &i �:i a:� 4:i sa �i �:i as
<br /> s
<br /> 0 3A l0 SA 60 7.0 3.0 4.0 5.0 GO 7.0 bD
<br /> I 3.Oi �.17 51b 638 7S3 291 3.a5 4.96 5.66 651 7A1
<br /> 2 3d9 435 556 682 &3� 283 3.TD �51 536 61� 6.90
<br /> 3 330 45� 5.lI 732 8.l6 295 3.57 1.35 5.� 5.79 6.�5
<br /> ♦ 3.{t L76 625 9.l4 9.T2 266 3.15 4.17 � SA6 6A6
<br /> ' 5 353 S.OD 667 857 IOTI 261 333 4.00 �.62 5.19 571
<br /> 6 3L6 5lb 7.14 93S 1207 7.54 � 3.55 4A1 �.93 5A1
<br /> 7_ 3�0_ : � _.7_,b'7 _ 103� 13?3 2�3 1 3.70 tZi L70 513
<br /> 8 3.AS 3� 8�1 11St 15.91 Z42 . 3S7 ln5 M9 �.BB
<br /> 9 {11 6.75 9A9 13.01 18.92 236 24� 3.15 3.90 l30 1.66
<br /> 10 «9 6.67 l0A IS.OD 2333 731 Z86 333 3.75 �.12 4.N .
<br /> 11 4,{6 7.14 Il.11 17.65 30.{3 2.1b 27b 3.?3 3.61 3.95 �.26
<br /> 12 �.EN 7.6r➢ 1250 21A3 I375 221 270 � 3.12 3.49 3.80 4.08
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