An Approach for Solid Modeling and Equipment Fleet Management Towards Low-Carbon Earthwork

ABSTRACTEarthwork is a basic operation for all forms of civil works and affects construction time, cost and productivity. It is a mechanized operation that needs various construction equipment as a group and uses a lot of fuel for construction equipment. But, the prob lem is that earthwork operation is usually performed by equipment operator's heuristic and intuition, which can cause low productivity , high fuel consumption, and high carbon dioxide emission. As one of solutions for this problem, the fleet management system for construction equipment is suggested for effective earthwork planning, optimal equipment allocation, efficient machine operation , fast information exchange, and so forth. The purpose of this research is to suggest core methods for developing the equipment fleet management system. The methods include 3D solid parametric model generation, soil distribution using Cctree data structure, equipment fleet construction and equipment fleet operation. A simulation test is performed to verify the effectiveness of the e quipment fleet management system in terms of equipment operating ratio, fuel usage, and CO