Grade/Slope; Back-Fill On A Slope - Percent Of Grade Known - Calculated Industries 4065 User Manual

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
1. Find volume for "A":
o o
5 5 f
x 3 f
x 2 f = µ
2. Find run of "B":
6 5 % p
2 f r
R
3. Find volume of triangle "B":
5 5 f
x ® R
x 2 f =
÷ 2 = µ
4. Find total volume:
® ®
Ç y
M+ 330.
%GRD 65.
RISE 2
FEET
RUN 3 0-15/16
FEET
RUN 3 0-15/16
FEET
338.4615
M+ 169.2308
M+ 499.2308
18.49003
U '
SER
DISPLAY
0.
55
FEET
3
FEET
M
CU FEET
M
0
M
INCH
M
INCH
55
M
FEET
M
INCH
M
CU FEET
M
CU FEET
CU FEET
CU YD
G — 53
S UIDE