BORROWPIT LEVELING SECOND OAK STREETS 36048 A1 47 3600 48 5

BORROW-PIT LEVELING SECOND & OAK STREETS 36048 A.1 4.7 3600 4.8 58 358.9 48 359.9 50 359.7 C,2 A.S 4.0 46 360.1 34 361.3 7 361.0 42 360.5 360.48 D.3 me Plate B.2 1.What is the total earthwork volume in cu.yd. if the finish pad elevation is set as 357? 2. What is the total earthwork volumes in cu.yd if the finish pad elevation is set as 360\'? What the cut volume? Fill volume? Import or export? BONUS: CREAT THE EXCEL CALCULATION FILE FOR THE ABOVE TWO PROBLEMS The final answer should be \"linked to the provided design Pad elevation.

Solution

Average elevation method: Find the average of the given elevations and if it is below that pad elevation, a fill would be needed to raise the elevation, but if it is higher than the pad elevation, then a cut would be needed.

Number of corners =n= 21,

average of the given elevation = Average Elevation= (359.5+359.3+....+360.5)/21= 359.871\'

(1) Pad elevation = 357\' <average elevation, so a cut has to be made, whose thickness = 359.871-357 = 2.871\'

A= Area of pad = Number of square*area of one square = 12*20*20= 4800 ft2

so cut volume to be exported =2.871*4800= 13780.8 ft3 = 510.4 yd3

(2) Pad elevation = 360\' > average, so a fill of thickness = 360-359.871 = 0.129\' has to be imported.

Volume = 0.129*4800 = 619.2 ft3 = 22.93 yd3