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<br /> G. DOWNSLOPE D�WIDTH
<br /> � 1. If landslope is�,°6��more,subtract rock layer width from '
<br /> � adsorption width to obtain minimum downslope dike toe
<br /> - �c,.� ft-�Q_ft =.�'L feeE
<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 J. 7 feet
<br /> b. Multiply rock layer width by landslope 1 feot`Cov�r.
<br /> �i`root Ro ea
<br /> to determine drop in elevation;
<br /> SIOj7e D1�E1'EliCe seperettoa �t��t
<br /> -�o x %-t- 100 = , �- feet Slop� Otfterenee �L •i
<br /> �- Upslope WIAt� 1
<br /> c. Add depth of clean sand for separation (2a) -L�feet �,ck eea wiotn
<br /> at upslope edge, depth of rock layer(1 foot) to depth of _1.�_�eet DownsloDe WIEtn
<br /> cover (1 foot) to find the mound height at the upslope edge �� ►eet
<br /> of rock layer;
<br /> . /.'� ft+ lft+ lft=�.� feet�
<br /> d. Enter table with landslope and upslope dike ratio.
<br /> Select dike multiplier of 3.a�
<br /> e. Muldply dike multiplier by upslope mound height
<br /> to find upslope dike width: Z.7 x .�� _�feeE '
<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,� ft+�_ft= y.3 feet
<br /> � g. Enter table with landslope and downslope dike ratio.
<br /> "�v� Select dike multiplier of 5�,a�
<br /> h. Multiply dike multiplier by downslope mound height
<br /> to get downslope dike width: y.3 x 5,�� _ �'� 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 /> :>:«:>::>:>:<::>::»<::»:<::<:>:.::::::::.::::::::<:,::.::.:;::>.:
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<br /> a eet
<br /> 3
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<br /> :n.,:..:::,, � �£x,;:::.::::.•::::::..,�.. 4'.r.vx<•:::•.;;•;•.,k,:`:�.;.:;::�
<br /> Total mound width is the sum of ;::::�:>;«<::::.. �..� �:>�.��:.:<:<:F<±:x:,:>:::.;:n<:<::;v::��:::>;.;::;.:>h:.;.:.:::;:::.;;;...;...�.;.
<br /> )• .... ,;:,<;>: ::,�:>.»<:<.::::�5.�.>:::.<:.:.::.:::.,.�:..:.:,,.>::;.:>.::>.:�::,.:�.:,.<>:.
<br /> ....
<br /> :::: ,,. ..,......
<br /> :.::::.:::<.:....:.:.:.<..:.:.:,.:. .................... .......
<br /> :::...<.<:..::< �:... :.:::..::s;.:
<br /> upslope dike (G.2e)width plus rock A::::`<:<::;.:. '.:;`:°`:''`�:`:::>:::
<br /> '?^�>;{>:<;;,::::^:;: R t D�0 Wt011l �..:;;.;>s�#.';:<z;..
<br /> ::;,
<br /> ..:#:::::....:....�... /D➢�� :�:%s::::z<:.;;::4;:
<br /> layer width (D.2) plus � UDf D��Wtdt� -�`••` :�: . ...:
<br /> o � �UDf OD�Mi0t11
<br /> f��t
<br /> � �::,i::':i:i:;:Y:;::::::i::�:':%%t.:::::;;'•::::i:�:%:.�:.:::,.:,.�..fltt
<br /> downslo dik . >:<:k:.:::».;:;:><;;::;<>:<:::,�:;... .::..:Y.:....
<br /> e width(G 2i); :::.�:.:.>::.::.:.,:.:>,::.:::.:::<:.::
<br /> Pe o
<br /> :iij:i�iY+i::::��i::vi:y;:::tii:::i:i•
<br /> .................
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<br /> �
<br /> � ;::t:;:?�:.y:iSi:;ii.::v�:;:y:::;:':;:j:::::::??:ti::i::::i:;;'r:;:;:i'::;�.�i:;:;
<br /> N
<br /> �::.. � ..::4i:Gi r:�v:�{n�v;��
<br /> :.��:: . :.:..
<br /> i::::::::}ii}:•:::::':�:i:::ii::'i::�i
<br /> � ft+ )� ft+ � ft - �► feet
<br /> �-
<br /> � -�
<br /> y
<br /> 5
<br /> ;:<:>::>w::»>:
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<br /> ;.:. 0 D Oi a.::.,:.>•::<.:;::>::::.x;;:::.::•:>::::;>o-;.:
<br /> k. Total mound len th is the sum of
<br /> g teet
<br /> .3.�_
<br /> ::c::
<br /> u 1 'k
<br /> s o d� e . lu
<br /> width 2e s r k la
<br /> G oc er
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<br /> .:..,.
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<br /> en h D
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<br /> s s o e di e width . • ;:>;:.;:;.::::>:::.:.:;::::.:.:::.:>.:;<::.
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<br /> f -
<br /> t + �
<br /> ►� ft ft
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<br /> a� �- �J � �� ��1 - � -
<br /> Total L�nptn
<br /> own ope ps ope
<br /> 3:1 LI 5:1 il 7:1 3:1 �:1 5:1 &1 7;1 !3
<br /> x�bpe
<br /> 0 3A l.0 S.0 6.0 7.0 3.0 f.0 5.0 60 7.0 !D
<br /> 1 3.fA ll7 5]6 63d 753 291 3.8i d.i6 5.66 651 7A1
<br /> 2 3.19 {35 a56 iffi 8.1� LSi 3,70 45� 536 61� 6.90
<br /> 3 330 {5{ SB8 732 b.86 ii� 3S7 435 5.08 5.79 6AS
<br /> 1 3A1 U6 625 �.89 9.J2 26a 3.15 �.17 l8� 5./6 6.06
<br /> '�� S 353 SAO_.._.� 667 D57 1077 261 333 �.00 �.62 5.19 571
<br /> - 6 31b " 51b 7.1� 93S 12W 2.51 �313� 3.85 lQ {.43 5.11
<br /> -T 3�0 SSi 7.69 103� 1373 2b " 3.12 3.70 l23 L90 5.13
<br /> 6 3.95 5�! b37 i15� 1591 2t2 3.Q1 357 �.� 4.�9 �i6
<br /> 9 {.11 625 9Ai 13.W 18.92 236 29� 3.15 3.90 {30 4I5
<br /> 10 ��9 667 l0A 15.00 7337 231 286 337 3.75 4.12 4.N
<br /> Il 1.f8 7.1< ]1.11 17.65 3Q1� 7.76 27d 3.73 3.61 3.95 �1b
<br /> )2 �b9 7.b➢ 1250 21.d3 d375 221 270 3.12 3./9 3.8D 4.06
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