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1 u )XVN',I Ol'i Ill 1:M1 1NII l I I I 1 <br /> 1 li landslope iN 1%, or more, <br /> tiul)tlat t r<1i k layer %vidtlr floor ad.solltticln <br /> to obtain mimintim downslope berm it,tt R.- <br /> Cleati..nd _ <br /> aO11 ID_ it - at7feet tJa.,,,al ..,.1 6`Topsod <br /> 2 Calculate Minimum mound Size - -•••--t.ri, <br /> a Detern3me dellth oI clean sand fill at 111".Lqr Width II-n.lorw Width <br /> upslope edge of rock layer: <br /> ---- - - <br /> Atrcorr,6on Width <br /> Separation 3' - I.916,�ft = _1. 1 feet <br /> b. Add depth of clean sand for separation (2.1) <br /> at upslope edge, depth of rock layer (1 foot) to depth of cover <br /> (1 foot) to find the mound height at the upslope edge of rock layer; <br /> 1, 11 ft + I ft + l ft = ?. I feet <br /> c. Enter table with landslope and upsl c, berm upslope Width <br /> ratio. Select berm multiplier of 3 <br /> U slo a Width aoo�."osa.�RockBcd �ovoD�WA; .D. U slo Width <br /> d. Multiply berm multiplier by upslope mound P P ,� width ,-•,, P Pe <br /> height to find upslope berm width: b'tw�o,. Le>t '''' �4s°`' <br /> g410p�a Q°'a a s c':p°rQ°'a,.00. <br /> 3 S-f x 3.1 11 1feet t NOO'OO o O ODU•ilV ti v7D'1 <br /> e. Multiply rock layer width by 3 <br /> landslope to determine drop in elevation; Downslope Width <br /> 1 x 3 % - 100= 0.3 feet Absorption <br /> Width <br /> f. Add depth of clean sand for slope <br /> difference (2e)at downslope edge, to 'oral Lx"& <br /> the mound height at the upslope edge <br /> of rock layer (2b) to find the downslope height; <br /> 0.3 ft + 3.t ft= 3•y feet <br /> g. Enter table with landslopa 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 /> '.SS y x 3-`+ =-1-M feet <br /> BERM SLOPE 1KULTl3°I.ff.R.S <br /> i. Compare the values of step G.1 10 <br /> and Step G.2h_it. 4 imd DOWNSWPE UPSLOPE <br /> Select the greater of the two values as the ;,% ba-tWpl;asccw"`ion bum rar`Wa°Id <br /> berm slope tra ios bairn dope tadas <br /> downslope berm width; IS 4 feet <br /> j. Total mound width is the sum of 3 4a 1 S 471 s 7: <br /> upslope berm (G.2d) 0 3.0 4.0 5.0 6.0 70 3.0 4.0 5.0 6.0 7.0 so <br /> 1 3.09 4.17 5.26 6 38 7 53 2.91 3.85 4.76 5.66 654 7 41 <br /> width plus rock layer width (D.2) <br /> plus <br /> � downslope berm width(G.2i); 319 4'35 5.96 682 814 2V 370 4.54 5.36 614 690 <br /> ft + t_ ft + 1 S•4ft _ �_ 3 3.30 4 U 4 5.88 7.32 886 2.75 4.35 5.08 5.79 6 4 t- 3 S feet 4 .141 4 76 6.25 789 9 7? <br /> 66 341 4.17 4.84 546 bry, <br /> k_ Total mound length is the sum of upslope 5 3.5? 5.00 667 857 1077 261 3.33 4.00 4.62 519 571 <br /> berm width (G.2d) plus rock layer length (D-3) 6 366 5.26 7 14 93h 12.07 254 3.23 3.85 4.41 493 541 <br /> plus upslope berm width (G.2d); 7 3.80 5.56 7.69 1034 173 2.45 312 3.70 4.23 470 S 13 <br /> _ ft + Sa ft + UL ft feet 8 395 5.88 833 11 54 1591 242 303 3.57 4.05 4410 4 xx , <br /> 9 4 11 6.25 909 1304 1892 2 36 2.94 3.45 3.90 4 IU 4 6S <br /> 1U 429 667 1000 1500 2333 231 '.86 3.37 3.75 41' aaa <br /> Final Dimensions: 448 7.14 1111 176, 1041 226 ?78 123 3.61 110, <br /> }a X ?/ t- 1 +610 7.6v 12 SU 21 4 1 4 1 75 2 21 ?70 1 12 3.49 3-Sn 4 Uh <br />