Alternative Configurations of Earthmoving Loading Practices toward Emissions Reduction
Publication: Journal of Construction Engineering and Management
Volume 148, Issue 1
Abstract
A significant number of studies have found that the emissions, production, and expenses of earthmoving operations are dependent on numerous variables. However, there has been less evidence that has explored the implications of alternative loading practices on emissions and production performance to date. This study investigates the impact of adopting alternative loading practices on emissions and production in excavator-truck operations to close the knowledge gap. In this paper, Monte Carlo simulation was applied to compare the performance of double-sided, fractional, and multiplier loading strategies with regular single-sided loading. The emissions, production, and optimality of the fleet size in terms of emissions per production were demonstrated using case-study data from a cut-and-fill method on a residence construction project. The results implied that different loading practices lead to different effects on production and fuel use, affecting the emissions per production. The findings of this study also revealed that service time had been shown to significantly influence the emissions per production for the changed loading practices. Hence, there is a promising opportunity to improve productivity by keeping a minimum service time in earthmoving operations. The results revealed from this paper would benefit those who are working on reducing or managing construction emissions. The significance and novelty of this research are that it presents an environmentally friendly technique of designing and controlling earthmoving operations by employing alternate loading practices in excavator-truck operations.
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Data Availability Statement
All data, models, and code generated or used during the study appear in the published article.
Acknowledgments
The author would like to express her gratitude to Professor David Carmichael for his insightful guidance on many aspects of this work.
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Journal of Construction Engineering and Management
Volume 148 • Issue 1 • January 2022
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© 2021 American Society of Civil Engineers.
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Received: Feb 1, 2021
Accepted: Sep 10, 2021
Published online: Oct 18, 2021
Published in print: Jan 1, 2022
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