Laserfiche WebLink
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 <br /> ZO ft- /0 ft= /0 feet <br /> 2. Calculate Minimum mound size based on geometery: <br /> a. Determine depth of clepi sand fill at upslope edge of rock <br /> layer: Separation /. Y feet <br /> b. Multiply rock layer width by landslope , I root Cover <br /> to determine drop in elevation; <br /> 1 foot Ro •ed <br /> Slope Difference Soperetlon I• feet <br /> /Q x 3 %+ 100= ,3 feet Slope Difference '3 t <br /> UpSIA08 Width <br /> c. Add depth of clean sand for separation (2a) f7 foot <br /> Rock Bed Width <br /> at upslope edge,depth of rock layer(1 foot) to depth of root DoWnel pe width <br /> cover(1 foot)to find themound height at the upslope edge foot <br /> of rock layer; <br /> /. '-f ft+ lft+ lft= 3.6{ feet • . <br /> d. Enter table with landslope and upslope dike ratio. <br /> Select dike multiplier of 3'-c.7 . <br /> e. Multiply dike multiplier by upsl,o,pe mound height <br /> to find upslope dike width:..1•67 x 3.5/ = /2 feet <br /> f. Add depth of clean 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 /> 3.'/ ft+ , 3 ft= 3.7 feet <br /> g. Enter table with landslope and downslope dike ratio. <br /> Select dike multiplier of S/1 S/ . <br /> h. Multiply dike multiplier by downslope mound height <br /> to get downslope dike width: 4/4-14 3.7 = 1 Zafeet <br /> i. Compare the values of step G.1 and Step G.2h Select the <br /> greater of the two values as the downslope dike width; $(o <br /> J . iZ feet <br /> `;U891 .Wleln . <br /> j. Total mound width is the sum of <br /> upslope dike(G.2e)width plus rock <br /> layer width (D.2) plus e • • <br /> downslope dike width(G.2.i); UG91G .lviatn uo610 .width <br /> e '111 /�' '11 t 3'f4 <br /> 8 ft+ /O ft + 14.4 .5./ feet <br /> k Total mound length is the sum of pow�1�jo wilt" .' <br /> upslope dike width (G.2e)plus rock layer <br /> length(D.3)plus upslope dike wid (G.2e); <br /> /Z ft+_GZ ft + /Z ft = 5'feet I <br /> �ro.81 Length <br /> Downslope U psiope <br /> 3:1 8:1 5:1 6:1 7:1 3:1 4:1 5:1 6:1 7:1 8:1 <br /> %slop. <br /> 0 30 4.0 5.0 6.0 7.0 3.0 4.0 5.0 '6.0 7.0 80 <br /> 1 309 4.17 5.26 638 7S3 2.91 3.65 6.76 5.66 651 7.41 <br /> 2 3.19 415 556 682 8.14 2.83 3.70 654 5.36 616 6.90 <br /> 3 3.30 434 5.88 7.32 886 2.75 337 6.15 5.08 5.79 6.45 <br /> 4 3Al 4.76 6.25 7.89 9.72 2.68 3.45 4.17 4.64 5.46 606 <br /> S 313 5.00 667 857 10.77 261 313 6.00 4.62 5.19 571 <br /> 6 3.66 5.26 7.14 9.38 1207 2.54 3.23 3.85 4.41 4.93 541 <br /> 7 310 536 7.69 10.34 13.73 2.68 3.12 3.70 123 4.70 5.13 <br /> 8 3.95 5.88 813 1134 15.91 2.12 3.03 3.57 6.09 4.49 618 <br /> 9 4.11 6. 9.09 13.04 18.92 236 2.94 3.45 3.90 430 445 <br /> 10 4.73 6.67 10.0 IS.00 2333 2.31 2.86 3.33 3.75 4.12 144 <br /> 11 648 7.14 11.11 17.65 30.43 226 2.78 3.23 3.61 3.95 4.26 <br /> 12 449 7.69 1230 21.43 43.78 2.2: 2.70 3.12 3.49 3.83 4.08 64 <br />