道路降雪铲除模型和城市主干道降雪清除规划-中文版.pdf

本论文提交 有英文版本 道路降雪铲除模型及城市主干道降雪清除规划 参赛队员 秦祎芃，高振源，苏聪 指导老师 蔡斌 学校 江苏省苏州中学 Abstract Heavy Snow will turn to a natural disaster, and will bring big economic losses. The authors hope to establish a mathematic model and a plan to illustrate how to sweep off the snow on main roads in a city so as to ensure the smooth flow of traffic. The research will become a basis on which the government can workout some plans against the snow disasters. Firstly we made some assumptions, then studied the working process of snow-sweepers and derived a snow sweeping model. Based on this model, the relationship between working speed of snow-sweeper and snow thickness, a working model of snow-sweeper, and minimum sets of snow-sweeper needed were established. A deep-searching model and a model of snow-sweeping tree, and a computer program in PASCAL to determine the minimum number of snow-sweeper and the snow sweeping plans on main roads were obtained. We tried several solutions to deal with this problem, such as using piecewise curve fitting to transform a formula h~ v relating to a cubic equation operation to formula v ~ h ,using trial and c c error method to determine the minimum number of snow sweepers, using deep searching and tree structure in one-stroke processing in a complicated two-way road system, and also a matrix to deal with the deep searching. 摘要 雪灾是重要的自然灾害之一，因降雪形成道路交通受阻甚至瘫痪是由雪灾造成严重经济 损失和不良社会影响的最重要因素。本项目的目的是希望通过我们的研究，构造出铲除道路 降雪保证道路畅通的数学模型，并对城市主干道路的降雪清除进行规划，为政府抗击雪灾及 制定有关预案做一点基础工作。 我们进行了问题假设，研究了铲雪机工作的物理过程和道路降雪清除的物理模型，在 此