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Optimization of Temporary Haul Road Design and Earthmoving Job Planning based on Site Rough-grading Design
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- Author / Creator
- Liu, Chang
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Site rough-grading operations are the preliminary work of the construction projects in remote areas especially in Northern Alberta. Haulage cost typically accounts for around 30% of the total cost of mass earthmoving projects. The temporary haul road network built in the earthmoving field is one major factor influencing haulage cost and production efficiency, which remains an empirical design problem at present. In order to convert it into an analytical problem, this study firstly utilizes the Floyd-Warshall algorithm and linear programming model to formulate the earthmoving planning based on a certain layout of temporary road network, shedding light on the potential benefits of selecting routes and directions for handling earthmoving jobs. On the basis of the optimization of earthmoving job planning, the optimization of layout of temporary road network is further proposed by using multi-generation compete genetic algorithm. The optimization approaches are explained in details through a practical application. Based on analytical analysis and numerical applications, it is proved that the optimization approach can reduce the total cost of the project and shortens its duration. In addition, simulation models are used to prove the effectiveness and feasibility of optimization results. The study conducts comprehensive and in-depth analyses to tackle the temporary haul road network design problem in the context of earthworks planning, which can provide decision support in planning and executing massive earthworks.
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- Subjects / Keywords
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- Graduation date
- Fall 2014
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- Type of Item
- Thesis
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- Degree
- Master of Science
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- License
- This thesis is made available by the University of Alberta Libraries with permission of the copyright owner solely for non-commercial purposes. This thesis, or any portion thereof, may not otherwise be copied or reproduced without the written consent of the copyright owner, except to the extent permitted by Canadian copyright law.