A contractor is using a tracked loader to backfill a building foundation. The loader is equipped with a bucket that has a rated heaped capacity of 1.4 cubic yards. The static tipping load for the loader is 11,570 pounds. The soil being used for the backfill is a rock dirt mixture weighing 2,950 pounds per loose cubic yard. The average travel distance for the loader is 125 feet one way. The average loader speed when loaded is estimated to be 1.5 miles per hour and when empty 2.2 miles per hour. What is the estimated productivity of the loader in loose cubic yards per hour, if the contractor plans an operational efficiency of 45 minutes per hour?

A contractor is using a tracked loader to backfill a building foundation. The loader is equipped with a bucket that has a rated heaped capacity of 1.4 cubic yards. The static tipping load for the loader is 11,570 pounds. The soil being used for the backfill is a rock dirt mixture weighing 2,950 pounds per loose cubic yard. The average travel distance for the loader is 125 feet one way. The average loader speed when loaded is estimated to be 1.5 miles per hour and when empty 2.2 miles per hour. What is the estimated productivity of the loader in loose cubic yards per hour, if the contractor plans an operational efficiency of 45 minutes per hour?

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

1. A contractor is using a tracked loader to backfill a building foundation. The loader is equipped with
a bucket that has a rated heaped capacity of 1.4 cubic yards. The static tipping load for the loader is
11,570 pounds. The soil being used for the backfill is a rock dirt mixture weighing 2,950 pounds
per loose cubic yard. The average travel distance for the loader is 125 feet one way. The average
loader speed when loaded is estimated to be 1.5 miles per hour and when empty 2.2 miles per hour.
What is the estimated productivity of the loader in loose cubic yards per hour, if the contractor
plans an operational efficiency of 45 minutes per hour?

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