| dc.description.abstract | Earthwork excavation, collection and disposal are one of the necessary works in the project. Because the work is almost universal in the operation, on-site engineering personnel have a certain degree of understanding. In the operation of earthwork excavation, collection and disposal, most of the machines dispatch is based on the past experience. In the operation of earthwork excavation, collection and disposal, if the proportion of earthwork is determined to be valuable, it can be sold to reduce the total operating cost after excavation. When the earthwork contains valuable gravel-cobble but the proportion of earthwork is not determined as valuable earthwork, the valuable gravel-cobble that is carried out to separate from earthwork in the additional screening operation can be transported and sold separately for the reduction of total operation cost. Due to the mutual influence of various factors on the construction schedule control, construction machines configuration, excavation cost and the benefit of selling gravel-cobble in the additional screening operation, it is difficult to use manpower planning for the optimal configuration, so that, how to complete with the lowest cost is the main goal of the engineering unit to strive for.
Accordingly, this study used integer programming method to establish the optimal model of mechanical vehicles and work allocation. LINGO17.0 mathematical programming software package was used to match Microsoft 365 Excel as an analysis tool for the solution. In this study, an earthwork collection and disposal is used as a sample test. Compared with manpower assignment, this study model is efficient for lower cost, and its sensitivity analysis shows that this study has stability and reliability, which can provide decision makers as a judgment basis. | en_US |