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2 cards from this section. Quick, good the night before a test.
Define the term 'Swell Factor'.
Think about volume changes when excavating material.
What does cycle time include?
Consider all the actions performed by the machinery during an operation.
What is the purpose of the swell factor?
Think about what happens when soil is excavated.
True or False: The swelling of soil increases by 10% when move from bank to loose form.
Consider the effect of machinery versus natural properties.
A construction project has determined that their scraper can carry a heaped capacity of 20 m³ at a swell factor of 0.78. If loaded to 92%, what would be the bank volume and weight of the material, given the unit weight is 1700 kg/m³?
Remember to convert first before calculating weight.
Given a scraper’s cycle time of 10 minutes, can you suggest a workable number of scrapers if the pusher cycle time is 3 minutes? What are the operational cost benefits as the number of scrapers increases?
Consider the time and money dynamics with operations.
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