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<br /> G. DCa�VNS'LOPE BERM WIDTH s���:- �, co�er� �, h �, � ;�
<br /> _, � p
<br /> t- : �� :�; «
<br /> , � �-°�w,.,
<br /> 1. If landslape is 1% or more, � , �� "'. _ -- �
<br /> ��.: �
<br /> subtract roc�: layer width from adsorption width ,� -�';���` �.K�,"i• = 7> >;;� . ;��;�;:
<br /> -y.��-.
<br /> to ubtain minimum downslope berm toe -�`" < ci�„s�,a� " _
<br /> � '�� G �,� .� °.�'..
<br /> �� ft - �v � _ �G feet aturalSoil ,1� -w,.................. ..+.r.:...-�i
<br /> ?. Calculate Ivlinimum mound Size --.�... (
<br /> a. D�termine depth of clean sand fill at U��°�"''�`� °°"'"""'''"`""'�"'-� ': ��(`` :
<br /> upslope edg� of rock layer: �a,�, ^ �°�W�d� ,���,,�G�„w,a;,; �
<br /> S��arution 3' - �� S ft = �'� feet )Q ' r
<br /> b. Add deptl-, of clean sand for separation (2a) �� � �'�
<br /> at upslope edbe, depth of rock layer (1 foot) to depth of cover
<br /> (1 foot) to find the mound�eight at the upslope edge of rock layzr; .7�� �-r-���
<br /> �tt + irt + lft = ��`'�feet
<br /> _w.___,��__..,�.�.
<br /> c. Ent�r table with landslope and upslope berm� . , up�w,��n^� �
<br /> ratio. Select berm multiplier of 3,G� ,� �
<br /> �Q b'.5�:.-+.v-v-:�a-aaa'�-S" 4.d'..5 �c'✓, (
<br /> Upslope Width : "� J���'ouD; lZock 13td . �a,uv�;: w►i 1��,;,4: . . .1th f
<br /> d. Multiply berm multiplier by upslope mound ' Up`�o 0o Q�� w;au, /�•�y�;��n;< _
<br /> height to find upslope berm width: ° `�n'"' R• '
<br /> Qavo a.� �q� �o P���uau ,'�"c' qa�`'J�u f��{�.
<br /> ��O 3 X .3-� = 10.� feet v _ -�+�+,..�.� r
<br /> e. Multiply rock layer width by `� ' , �. - `�c- ,� �
<br /> E= - Dowrulo�Wiad, I
<br /> landslope to etermine drop ' elevation; - ,�,r,:�,�,,�,n tiv;s�r�._ /�-
<br /> �o x�°o- 100 =Q� feet ~ `�: ,
<br /> . , ; ;. , : . ;
<br /> f. Add depth of clean sand for slope --------------�
<br /> ditference (2e)at downslope edge, to Towlt.�nb-u�;��� �`���-��� �,,1
<br /> the mound hei�-ht at the u slo e ed e �
<br /> b P P �
<br /> ot rock layer (2b) to find the downslope height;
<br /> .3�� �t + 4�?�� ft ='�_feet
<br /> g. Enter table with landslo and downslope bernl ratio. Select
<br /> bzrm multiplitr of S% � �
<br /> h. Iviultiply berm nlultiplier by downslope mound height to get
<br /> downslope berm width:
<br /> �
<br /> 5 ,� � X�._3 = �� feet nr:►ui�Los•t:wtc;t.�-►rt.i�Y:,
<br /> i. Compare the values of step G.1� � � �
<br /> �
<br /> �t11d Step G.2Y1 Z:� r.�a �owt�s�.ow� r�rr,Y..�,wr.;
<br /> Si�.Ne beru�mulupLc.�(or variwu bcc,:3.,...;u�rdcn��w'v;,:,...>r
<br /> Sclect the greatcr of the two�lues as the ��>� Dcriu alupt CaUw �.�A,..,,,�:�.,+.�,
<br /> downslope berm width; 2� feet ___.,_.,,r_...�.....__.....�..
<br /> j. Total mound width is the sum of �� ``� `� , �� , � � � �._::.,�.. �. __...
<br /> .____,.,�.. �.
<br /> upslope berm (G.2d) 0 3.o a.o s.o 6.0 7 u 3.� .�.0 s.0 ,.0 ,. r
<br /> l 3.09 4.17 5.26 6.3a 7.:,a :.1i 3.b� �7� �,r,o . - ,.
<br /> width plus roc�layer width (D.?) � 3.19 a.ss sso 6.si �.�� :c.; 3.�.� ;.� ,�o <, ;.. �,-;,,
<br /> plus downslope berm width(G.2i); 3 3.�o a.sa s.ss �.3� �.�� z�� 3.s� �aa -,��a �7, a :<,
<br /> /1. - fr + _�ft + Z� � = �7•�a tt:�t 4 3.41 4.76 6.25 7.89 9.72 ?;,> 3.4� , 1'r o r,+t ,r. �,;.
<br /> k. Total mouna length is the sum of upslope 5 3.53 s.00 b.a� s.s7 �o.�� ..c,� 3.�s �+u�, -;�,z � �: ; .
<br /> berm width (G?d) plus rock layer length (D.3) 6 3.6o s.26 z�.► 9.38 ,z.o� z.7� 3.zs :�.e� .�, {; : „
<br /> , � plus upslope b��rrn width (C?dl; � 3.80 ssb zo9 ►o.�a ��.�3 z.�., �� ,,u ..::� , , ; .a
<br /> f u� G.�.. � + .`�S ft tl''�� ft - 7� f��t � 3.95 5.88 8.�3 11.53 15.1! 2.•t: `,3�_,._. ' S7 v QS .-� , .,
<br /> ���� �' �L S;� /� � , �)� �. 9 4.l I 6.25 9.ii�) 13.OJ IlS.;"' 2.+ti �.•;l �.a� 3 N� ,.
<br /> f�� --���-...��--._.,�'=- Y- lU 4.29 6.67 IU.(r(� IS.W 23.3� '_'.'l: I.Ht _+.:fj 7S ,.
<br /> �1Y1�� �1rY72nsions: � �.�, ) „ a.as �.,a ,►.0 n.os su.a3 : _;� :a� ;�:; ;,i , ,
<br /> I: 4.69 7.69 12.`:1 2La3 a s?S �.:; 2'i;, a l;. +��
<br /> .� .
<br /> �'/ �,J ` � �_�� /_ ( ..,._.�.,.._,._....r.. _.�..,..� ,�
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