不需新修便道公路施工环境下单个堆料场选址研究

The Study on the Location of the Single Materials Stack Area Based on the Road Construction Condition-“no Need for Constructing New Shortcuts”

公路独特的线形走势使得堆料场位置与材料运输路径关系密切,对施工成本影响巨大,为了实现公路施工成本的精细化管理以满足成本控制目标,运用科学合理的选址方法来确定堆料场选址已成为公路行业亟待解决的问题。以是否新修便道为分类标准划分了公路施工环境类型,构建了不需新修便道公路施工环境下单个堆料场选址模型,提出了求解方法,以实际公路工程项目作为算例对构建的模型进行了可行性分析,同时将新构建的选址方法与修正重心法就算例中的选址结果进行了比较,验证了所构建选址模型的可行性。

The location of the materials stack area has a great effect on the materials transportation path because of the unique linear trend of the road. And then it seriously affects the construction cost. In order to realize the delicacy management of the road construction cost and finally meet the needs of the cost control, it is a burning question in field of the road industry to use the scientific and reasonable method to determine locations of the materials stack area. In this paper, the classifications of the road construction condition are defined based on whether to construct a new shortcut, and then the location model and solution method of the materials stack area based on the road construction environment -＂no need for constructing new shortcuts＂ are developed. A numerical example which is based on the real road engineering project is carried out to prove the proposed location model feasible, meanwhile, comparing the results of the proposed location model and the fixed gravity method. The research result shows that it is feasible that the proposed location model is applied to calculate the location of the materials stack area based on the construction condition of the actual road -＂no need for constructing a new shortcut＂.