Question

station cut (yd) (yd) Problem 3: Excavation earthwork has been determined from cross sections as shown. The cut earthwork from the same sight is used for the fill. If the cut earthwork is not enough to complete fill, the extra earthwork has to be borrowed. The truck to be used to for borrowing earthwork has a capacity of 15 yd. a. How many truckloads of borrow are required? b. What is the grade change station? 5 pts c. What is balance point station? 5 pts 5 pts 20 21 22 23 24 25 1500 1350 800 250 500 950 1200 1400

Answer 1

ANSWER :
500 € 950 + 1200 +1400 = 4050 yd 3. 0 cut station. Po 1 (yd3) (45) 20 1500 21 1350 22 800 500 123 150 950 124 1200 이 1400 3. Cut: = 1500 +1350 +800 +250 = 3900 yd fill: 3. we need to borrow = 4050-3900 = 150 10 truck loads (a) Truckloads: 150 yd ² Requrve.d. cay thwork capacity of truck 15 10 Truck loads are needed (6.) Grade change station! According to given data, the grade change station in this excavation work is where the cutting to filling. slope changes from

(c) Balance point station: the grade change station is 22 ( cutting to filling) station cut fill. 22 800 500 * Balance point is where is where the diagram the diagram intersects the baseline and indicating where the cut and fill have balanced out fill cut 20 21 22 24 255 Here the Balance point station is 23.