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G. DOWNSLOPE DIICE WIDTH
<br /> 1. If landslope is 3% or more,subtract rock layer width from
<br /> � adsorption width to obtain minimum downslope dike toe
<br /> Z� ft- /� �ft= /d feet
<br /> 2. Calculate Minimum mound size based on geometery:
<br /> a. Deterinine depth of clean sand fill at upslope edge of rock
<br /> layer: Separation � feet
<br /> b. Multiply rock layer width by landslope � �°o� co�.�.
<br /> to deternune drop in elevation; t reoc ao .a
<br /> � � Slope Difference S�Deretloa �.o r..� D
<br /> �Q X 3 %-3-1�0= �. 3 feeE SIoD• Ottt�r�ntt • et
<br /> UDsloDe WIOtn
<br /> c. Add depth of dean sand for sepazation (2a) l�tee� Rock eea wiatn .
<br /> at upslope edge,depth of rock layer(1 foot) to depth of �� r.e� ooW��:}�oe w�at�
<br /> cover(1 foot) to find the mound height at the upslope edge -��eet
<br /> of rock layer;
<br /> /• � ft+ lft + lft= 3• � feet
<br /> d. Enter table with landslope and upslope dike ratio.
<br /> Select dike multiplier of 3• S�
<br /> e. Muldply dike multiplier by upslope mound height
<br /> to find upslope dike width: 3.57 x 3 = /0.7feet ti �/
<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 /> D.3 ft+ �• � ft= 3• 3 feet
<br /> g. Enter table with landslope and downslope dike ratio. ' "
<br /> � Select dike multiplier of 5! S�1 �
<br /> h. Multiply dike multiplier by downslope mound height
<br /> , to get downslope dike width:�sy x 3.3 = /S 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;
<br /> +L4:'{'�:i::Li'i�i:<!ii:i?ii$7$:�{f:v^:::f{•}::i:;{:•,:::��<:;>:ii:!�lft
<br /> /S feet ::::;<`:::�<::...::f n��t�n a. � {�
<br /> UDf10D�MIOtf1::: :>�:;'v�:;:�::::b•ta:i:':+:•:••.:•;..:';.3::'k.t ;::iE•>�:<#.;;f?:�;#:f:`•y:•'
<br /> ...�.. ;.,� �;;�.:.r:�'�:<�::::•:
<br /> ���I ��:��'{^:J:+^?:#i . ;2'u�iY},ti. <. ..te;:i.,i),:'t`,:;y:y`;;;r,:`Y;S;#:;:`v:,
<br /> j. Total mound width is the sum of ':: `'° .£�:�:�.� ��3:��:fi��;�"����. _��
<br /> � � �
<br /> ,,.,:..:.:: � :����::::>€::
<br /> upslope dike (G.2e)width plus rock ;�<��>;'� aocr e�a w�ain '•'�:�:�:':`:.'
<br /> .:.,::<:;.< :......�.r::s:<:>�>
<br /> layer width (D.2)plus a �o=►oo�w�a�� "" �o.�oo�"w�a��
<br /> �..< <..�
<br /> downslope dike width(G.2i)• � ::;:>;.. .. . �... �'� ��`� ::�':;''};'.`
<br /> / e �:%e.'� �' •„jEyixa'y�:e;k:i:K;�%i:
<br /> ::;>.; k..: 'r''i::� . ..
<br /> L o :i::$�'�",$:�',,. ,r,°�y: ', ' ¢. ,y..4; � 2?:.:',k��'��'':i
<br /> V : {{,<:>i%y: ' z ti:f�:•\'%
<br /> / /o + /S ft = 3 feet � . ::;�:::;::�:.>� ,,.:<:R:..�>:t>:::::�:�>,::<:;;
<br /> . / ft+ ft ' ��� � � ;
<br /> ��oownsioo�wiuin`�"':••.#�•<.>.:;:•:.;;;,;.<.s..,:�.;cr.,::tr:
<br /> r�3r�r'%:�i�':��'�s'^�cc. � c
<br /> �`�,.�',.y''+,,~'.'%�;$.'�.it;:`:>},',�� '4"<S
<br /> k. Total mound len is the sum of �..� f::��:;;:;�:::.
<br /> . $� �:�:�:., �. �;����{;:.>:<:>:.��;;�,::;<.;;>:.;�:::
<br /> �:,3;:::�: ..;..a3<;::<h>.;;': r•Y3'"O��R;v•.;•w:•.•.#:':;::�>:•:<•i:•::�•>:<:x::::;:::..
<br /> �'�::?i'.'i:> � ';C:.`v�'r:::�::�?.i:�>'{.i�:R:;f"iy,:;:#:;;::'t:'�.�+t�':'S::::'`.��:�:::�.:::•t'ik`.:};:::S::
<br /> u slo dike width(G.2e) lus rock layer ;;;<,;<:;;.:::::�::;�;�`,,,>:.:.µ�. :<,.,�,r.,{:,��;�.:,.T,;<,;::�:::
<br /> P Pe P �>::: .:;:<.,:�;:3�:v: � ..r� �.:�? <.: �� .$,;:..:.:_:>
<br /> :'i>�;� ,� Z. ."o. �a a:;£j`:;�?'£:�.y.��.r.;;>,;\,�
<br /> h D.3 lus u slo e dike width (G.2e). :�<�,:x<: :'�•�.����:.::.. �. ,h:�.fi.
<br /> lengt ( )p P P � �:. . :�:. ;�n;• ;fi� � ;}����``�.�:;�•;:��<
<br /> ,
<br /> •::�::.o-:` `� �i z:`:.
<br /> :
<br /> ?z
<br /> :..
<br /> ;. .,
<br /> :.; ..>•,....;.:..`•
<br /> ..... ....•x.:-.•., '•
<br /> �,ft+ So ft + // ft= 7 Z feet :..>:::�::;: . ::..:<,. ;.�,<.:;.::.,.;:� : ;.r:<:.x:::�:::::.::t:.�.��.. �:<.:.,>.
<br /> .:..:.�... .. . ,.>::.:.�:::.��..o .:.,:..:..:... .... ..,,.::.;...
<br /> ' Totell�nptn •
<br /> o a� ps ope
<br /> 3:1 l:l S:1 &1 7:3 � 3:1 �:1 S:l &1 7:1 81
<br /> t�Yop
<br /> 0 3D �.0 SA f.0 7.0 7.0 40 f•0 �0 7.0 �A
<br /> I 3.W �.17 5�5 6.3� 733 291 3.aS �.7i 5.66 i51 741
<br /> � 31y � S56 6ffi 0.1l 2.83 ].70 l5� S�b 41� �.�
<br /> 330 58b 732 �.86 275 C.Lg� �.15 5.01 5.79 fAS
<br /> { l,u �S 7.BV 9.7! 266 3.15 417 �.81 S.�b �.06
<br /> � 5 �9 5.00 6b9 !S7 1077 261 3.33 400 .462 5.19 S71
<br /> 6 3� S.Z6 7.11 938 12A7 Z51 333 �.iS �.0 443 SAI
<br /> 7 �.AO 556 7.69 303� 13.73 td8 �.12 �.70 l� L70 5.13
<br /> ' B 3.% 586 617 1154 1591 242 1�m 3� L� �'�9 �'�
<br /> 9 l.ti 6.�5 9.OD 13.0� 18.92 236 291 3.�5 3.90 �.30 «
<br /> 10 �29 6b7 loA 15.00 2337 73t 2.86 333 7.75 112 ��
<br /> 11 {.fi 71� il.11 17b5 30.41 tlb I.78 3.21 . 3.61 7.% 176
<br /> 12 �d➢ NA 1250 Il.t3 t375 221 270 3.1I • �.�9 3.l0 �D6
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