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:, f�( ����N�1 (lI'I�. I3E�.I�M INI( >�I�l I �,��,�„� <<„-.�, ,
<br /> 1 If landslc����� is 1`Y�� or more,
<br /> �
<br /> sul�tr,3��1 r<�ck layer ti�idth fr��n� .3�iti�,r��t��,n ���i�jth • eo_ 000� .9 � � �
<br /> t Rock 1' �o do
<br /> �U U�1"c3111 I711T11I71ll1I1 (j(1Wf1S�O��E' ht�111 f���' � < leanSand �
<br /> ' - - (� Topso�
<br /> C�-- ft - � ft = � � � feeE N�,��,���.,,,� - :
<br /> 2. C�alculate Minimum mound ��z�� -�-�-� �-�� �� ����
<br /> - — ���_,_,�,.._,_ ___ _ - - �
<br /> .] ��C'tE'rI711I1E' (�E'�t�l ll� (��f'i3ll 4i7T1(j fl�� i31 1!�••I�qM lvidih I�nwntil����Wid�h
<br /> - - -- - _-- — -- �
<br /> - — -
<br /> U��S C)��E' E' gE' O rOC ayE'r' Rock W�dth Absorph<���lN�dth
<br /> Sc�paration 3' - �6 ft = _�_, � _ feet ---
<br /> b. Add depth of clean sand for separation (2a)
<br /> at upslope edge, depth of rock layer (1 foot) to depth of rover
<br /> (� foot) to find the mound height at the upslope edge of rock layer;
<br /> �� ft + lft + lft = � feet
<br /> c. Enter table with landslope and upslope berm - up5iope w�a�n �
<br /> ratio. Select berm multiplier of_� Z�
<br /> d. Multiply berm multiplier by upslope mound L'F�S'o�,e w,d�h �'0o'or'onb,�Rock Bed �o ooBb 4 n Upslope Width ,
<br /> hei ht to find u SIO e berm width: I BD°�6aoQo� Wd�� ?oeDDoDODb n
<br /> g P P Qo;a oa°vo:o ab"�oeu e�a�Qo do nD e
<br /> �'�x 3•Z� _ � feet �
<br /> e. Multiply rock layer width by � . �
<br /> landslope to determine drop in elevation; F ��io�wa�n
<br /> Absorption Width
<br /> x�% - 100 = � feet
<br /> f. Add depth of clean sand for slope
<br /> difference (2e)at downslope edge, to r°`�'�'�'
<br /> the mound height at the upslope edge
<br /> of rock layer (2b) to find the downslope height;
<br /> �4,f, ft + ?:� ft = �_feet
<br /> g. Enter table with landslope and downslope berm ratio. Select
<br /> berm multiplier of �,�? �
<br /> h. Multiply berm multiplier by downslope mound height to get
<br /> downslope berm width:
<br /> .S.ZC� x�_ _� feet
<br /> BERM SLOPE hfUI,'TIPLIERS
<br /> i. Compare the values of step G.1 �d. 7
<br /> and Step G.2h �� 1-znd DOWNSLOPE UPSLOPE
<br /> Slope berm mulApli�ts for vario¢s berm mW4ptiers for various
<br /> Select the greater of the two ��alues as the �o� �,�,��,�;� �S,��ti�
<br /> downslope berm width; , 7 feet
<br /> j. Total mound width is the sum of ' ' 4j 5 � � � � 4 � 5 � i �:i s:�
<br /> upslope berrrt (G.2d) ° �0 4-o s.o 6.o zo 3.o a.o s.o b.o �.o s.o
<br /> width plus rock layer width (D2) ' 3 09 ° i� s.z6 638 �.s3 2.9i 3.ss 4.�e s.� b.s, �4i
<br /> '- 3 19 a 35 5.56 6.82 8.14 283 370 4.Sa 5.36 6J4 6.90
<br /> plus downslope berm width(G.2i); 3 3 3p 4 Sa 5 88 7 32 8.86 2 7S 3 57 4 35 5 08 S 79 6A�
<br /> �(! � + f�_ ft + � ft = �[� feet 4 3 41 a 76 6 25 7_89 9 72 ?6fi 3 as 4 17 4.84 5-46 6.06
<br /> r
<br /> k Total mound length is the sum of upslope s 3 s3 s oo b 6� ss� �o.�� z b� 3 3� a oo a 62 s ,9 s,,
<br /> berm width (G.2d) plus rock layer length (D.3) 6 3 66 S 26 7 14 9 38 12 07 2 S4 3 23 3 R5 a q 1 a.93 5 q�
<br /> plus upslope erm ��idth (G2d); � 3 RG -s(, 7 69 10 34 13.73 2Ab a I 1 70 q z3 4J0 5 13
<br /> �_ ft + � ft + � ft = �� feet � 3�� s ss A 3s �i_sa is_9i �a� 3 0; �s� a_os a av a_as
<br /> y ali n�S 909 i3-Oa 189� ?3c '�+a la� 390 a10 a65
<br /> --- — -------� 10 �?9 667 I(ilKl I500 ?3.�3 '31 `f;t i3; ;?•: � 1' aaa
<br /> i �'II1d1 �1I21f'I1SlOIlS: u �a� ' �-� �iii i�r,� �ua� :_�, :�r �:�_ ;<,, avs .; :�,
<br /> ; � �
<br /> � Z
<br /> X , �� � -7 t,v 7�v i:50 ?I 4 i 4l 75 2�; . 'u - I: 4 4Y i.8�1 �pf
<br /> ---'--
<br /> ----�--�- ------ ---��-,-- --- � -
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