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U. DOWNSLOPE DIKE WIDTH <br />I. If landslope is 3% or more, subtract rock layer width from <br />adsorption width to obtain minimum downslope dike toe for <br />absorption: - <br />ale ft - /0 ft = 19 feet <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 /, U feet <br />b. Multiply rock layer width by landslope to determine drop <br />in elevation; Slope Difference <br />1Q x _-LL% + 100 = . L4 feet ��-�- <br />c. Add depth of clean sand depth of clean sand for "" -+ 6.•P o.._. <br />separation at upslope edge (2a) to depth of rock layer to . <br />rock depth and the depth of cover to find the total mound <br />height at upslope edge of rock layer; <br />l ,y ft + 1 ft + 1 ft = • O feet <br />d. Enter table on page bottom with landslope and upslope <br />dike ratio. Select dike multiplier of 3.1-1 S <br />e. Multiply dike multiplier by upslope mound height <br />to get upslope dike width: ? . 0 x 3. � < = / n feet <br />f. Add the depth of slope difference (2b) to the upslope <br />height to get the downslope height <br />3.0 +-LI_=:?.Vfeet <br />g. Enter table on page bottom with landslope and <br />downslope dike ratio. <br />Select dike multiplier of 4. e <br />h. Multiply dike multiplier by downslope mound height <br />to get downslope dike width: , . L x y.,)c- _ I_ feet <br />i. Compare the values of step G.1 and Step G.2.h. Select the <br />greater of the two values as the downslope dike width; <br />1') feet <br />j. Total mound width is the sum of upslope dike <br />width plus rock layer width plus downslope <br />dike width; <br />ft + )0 ft + 12 ft = _feet vq1� <br />k. Total mound length is the sum of upslope <br />dike width plus rock layer length plus <br />upslope dike width; <br />�- ft + ;e ft + _1J-- ft = 4/ `�_ feet <br />10 , -r E t ) Ali <br />/ .2 <br />3:1 <br />{:1 <br />wns op <br />5:1 <br />6:1 <br />7:1 <br />3.1 <br />6:1 <br />pslope <br />S:1 <br />i l <br />7:1 <br />4:1 <br />t Yope <br />0 <br />3.0 <br />4.0 <br />&0 <br />60 <br />70 <br />30 <br />4.0 <br />So <br />60 <br />70 <br />60 <br />1 <br />3339 <br />4.17 <br />5.26 <br />639 <br />7 53 <br />: 91 <br />3 M <br />476 <br />566 <br />654 <br />7.41 <br />2 <br />3.19 <br />4.33 <br />S 56 <br />682 <br />314 <br />: %3 <br />370 <br />! 54 <br />536 <br />6.1! <br />6.90 <br />3 <br />330 <br />4U <br />SM <br />732 <br />M.Y. <br />"• <br />435 <br />Sng <br />5.79 <br />64S <br />ti- <br />5 <br />3.53 <br />S W <br />i u) <br />F I. <br />.. <br />6 <br />366 <br />5.26 <br />7.14 <br />9 1e <br />1 .7 <br />a <br />3 :3 <br />3 .%5 <br />4 :1 <br />! 93 <br />5 ! 1 <br />7 <br />310 <br />5.56 <br />70 <br />1034 <br />13 .73 <br />2 s.; <br />3 12 <br />3.70 <br />4 2.3 <br />! 70 <br />5.13 <br />a <br />3.9S <br />S.M <br />115! <br />17 <br />242 <br />3.03 <br />357 <br />{OS <br />49 <br />{6 <br />9 <br />6.11 <br />& <br />09 <br />M <br />19 <br />54 <br />216 <br />294 <br />345 <br />390 <br />4.30 <br />11 <br />10 <br />29 <br />6.6 <br />100 <br />IiM <br />17 <br />1.12 <br />!! <br />11 <br />4a <br />7.14 <br />111 <br />17'6 <br />271 <br />323 <br />361 <br />395 <br />42ti <br />2 <br />469 <br />7.9 <br />1-1 <br />21 41 <br />312 <br />7:4 <br />351) <br />4ei+ <br />