Calculate the cost per cubic yard to move earth for a project that plans to use a back-hoe and system of trucks. All equipment carries a rated heaped capacity, has a fill factor of 100%, and works 55-min hours. Back-hoe excavator costs are $105/hr (including operator), cycle time is 0.25 min, and bucket heaped capacity is 5.5 cy. Truck costs are $150/hr (including operator), dump time is 0.70 min (maneuver, dump, turn), heaped capacity is 32.5 cy, and 10 trucks are available for the project. Hauling equipment operates in one direction from A to B to C and finally to D according to the following table. Find the following values (note: carry out your calculations to at least 4 decimal points to obtain the best results): Section Load Length (ft) Speed (mph) full full A 2,800 2,400 2,900 2,800 8 18 empty empty 37 D 17

Calculate the cost per cubic yard to move earth for a project that plans to use a back-hoe and system of trucks. All equipment carries a rated heaped capacity, has a fill factor of 100%, and works 55-min hours. Back-hoe excavator costs are $105/hr (including operator), cycle time is 0.25 min, and bucket heaped capacity is 5.5 cy. Truck costs are $150/hr (including operator), dump time is 0.70 min (maneuver, dump, turn), heaped capacity is 32.5 cy, and 10 trucks are available for the project. Hauling equipment operates in one direction from A to B to C and finally to D according to the following table. Find the following values (note: carry out your calculations to at least 4 decimal points to obtain the best results): Section Load Length (ft) Speed (mph) full full A 2,800 2,400 2,900 2,800 8 18 empty empty 37 D 17

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Question

Calculate the cost per cubic yard to move earth for a
project that plans to use a back-hoe and system of
trucks. All equipment carries a rated heaped capacity,
has a fill factor of 100%, and works 55-min hours.
Back-hoe excavator costs are $105/hr (including
operator), cycle time is 0.25 min, and bucket heaped
capacity is 5.5 cy. Truck costs are $150/hr (including
operator), dump time is 0.70 min (maneuver, dump,
turn), heaped capacity is 32.5 cy, and 10 trucks are
available for the project. Hauling equipment operates
in one direction from A to B to C and finally to D
according to the following table. Find the following
values (note: carry out your calculations to at least 4
decimal points to obtain the best results):
Section
Load
Length (ft)
Speed (mph)
full
full
A
2,800
2,400
2,900
2,800
в
18
empty
empty
37
17

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