Calculated-industries 4065 v3.1 User Guide Instrukcja Użytkownika Pobierz pdf (Strona 61)

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— 53

GRADE/SLOPE

Back-Fill on a Slope —

Percent of Grade Known

You’ve built 55 linear Feet of a 3-foot high retaining wall that is 3 Feet

from the base of a 65% grade. You need to pour back-fill within

12 Inches of the top of the wall (for a 2 Foot depth). How many Cubic

Yards of fill should you have delivered?

KEYSTROKE DISPLAY

1. Find volume for “A”:

o o 0.

5 5 f 55 FEET

x 3 f 3 FEET

x 2 f = µ M+ 330. CU FEET

2. Find run of “B”:

6 5 % p %GRD 65.

2 f r RISE 2 FEET 0 INCH

R RUN 3 FEET 0-15/16 INCH

3. Find volume of triangle “B”:

5 5 f 55 FEET

x ® R RUN 3 FEET 0-15/16 INCH

x 2 f = 338.4615 CU FEET

÷ 2 = µ M+ 169.2308 CU FEET

4. Find total volume:

® ® M+ 499.2308 CU FEET

Ç y 18.49003 CU YD

1 2 ... 56 57 58 59 60 61 62 63 64 65 66 ... 109 110

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Calculated-industries 4065 v3.1 User Guide Instrukcja Użytkownika Strona 61