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) <br />. _J <br />. <br />G. DOWNSLOPE DIKE WIDTH <br />1. If landslope is 3% or more, subtract rock layer v.ridth from <br />adsorption vvidth to obtain minimwn downslope dike toe <br />.:). 1,,. 1 ft -_J_Q_ ft = 17 feet <br />2. Calculate Minimum mound size based on geometery: <br />a. Determine depth of dean sand fill at upslope edge of rock <br />layer: Separation ? , O feet <br />b. Multiply rock layer width by landslope <br />to determine drop in elevation; <br />Slope Difference <br />_J_Q_ x _k_._% + 100 =~feet <br />c. Add depth of dean sand for separation (2a) <br />at upslope edge, depth of rock layer (1 foot) to depth of <br />cover (1 foot) to find the mound height at the upslope edge <br />of rock layer; <br />.2&_ft+ Ht+ lft=_s_iLfeet <br />d. Enter table with landslope and upslope dike ratio. <br />Select dike multiplier of ~. ;1.3 <br />e. Multiply dike multiplier by upslope mound height <br />to find upslope dike width: ...::LJL x ~ ,::G = ~ feet <br />f. Add depth of dean 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 />~ft+ _.:_k_ ft= ~feet <br />g. Enter table with landslope and downslope dike ratio. <br />Select dike multiplier of -5. ~ 1,.- <br />h. Multiply dike multiplier by downslope mound height <br />to get downslope dike width: ...::i.JL_ x .s.~i.. = .2::l-.feet <br />i. Compare the values of step G. l and Step G.2h Select the <br />greater of the two values as the downslope dike v.ridth; <br />~ '-I feet <br />j. Total mound width is the swn of <br />upslope dike (G.2e) width plus rock <br />layer width (D.2) plus <br />downslope dike width(G.2i); <br />___ll ft + .J..Q_ ft + M_ ft = _:L.2_ feet <br />k. Total mound length is the swn of <br />upslope dike width (G.2e) plus rock layer <br />length (D.3) plus upslope dike width (G.2e); <br />_J3_ ft + C, V ft + ~ ft = _:1:j_ feet <br />;,_'-l t-~'<I t-J..Y /J~ <br />3:1 <l:l <br />lJownslope <br />5:1 6:1 7:1 3:1 <br />'J, slope <br />0 3.0 4.0 5.0 6.0 7.0 3.0 <br />1 3.09 (.17 5.26 6.38 7.53 2.91 <br />2 3.19 4.lS 5.56 6.62 8.14 2.83 <br />3 3.30 4...54 5.118 7.32 S.66 2.~ <br />4 3.41 (.76 6.25 7.89 9.72 2.68 <br />5 3.53 5.00 6.67 8Sl 10.77 2.61 <br />4:1 <br />4.0 <br />3.85 <br />3.70 <br />3Sl <br />3.45 <br />3.33 <br />--6 3ii, ~ __ 7.lL __ 9.38 _!.2=_07_ --~--0:li) 3..!0--5.56 7 7.€.i 10.34 1373 2.48 3.12 <br />8 3.95 5.118 8.l3 11.54 15.91 2.42 3.03 <br />9 4.11 6..25 9.f» 13.04 18.92 2..36 2.94 <br />10 4.29 6.bl 10.0 1s.00 23.33 2.31 2.66 <br />11 us 7.1( 11.11 17.65 30.43 U6 2.78 <br />12 4..69 7.£11 12.50 2U3 43.i5 221 2.70 <br />L:pslope <br />5:1 <br />5.0 <br />4.76 <br />4.54 <br />4.35 <br />4.17 <br />4.00 <br />3.85 <br />3.70 <br />3.57 <br />3.45 <br />3.l3 <br />3.23 <br />3.12 <br />I rool Covar <br />Rocle Bed Width <br />__/.Q_ I e et <br />Totel Lengtn <br />6:1 7:1 8:1 <br />6.0 7.0 8.0 <br />5.66 6.54 7.41 <br />5.36 6.14 6.90 <br />5.CS 5.79 us <br />4.84 5.'6 6.06 <br />4.62 5.19 5.71 <br />4.41 4.93 5.41 <br />4.23 (.,0 5.13 <br />,.a; 4.49 4.8S <br />3.90 4.30 4£,5 <br />3.75 4.12 4.44 <br />3.61 3.95 4.26 <br />3.49 3.!IJ 4.CS