城市拆除爆破工程线状尘源扩散模型研究

发布时间：2018-02-04 14:07

本文关键词： 线状尘源爆破粉尘烟团扩散可视化设计　出处：《武汉理工大学》2015年硕士论文　论文类型：学位论文

【摘要】：近几年雾霾现象频繁出现,使其成为当今社会倍加关注的焦点问题。究其原因有多种,其中新城区的建设和老城区的改造,大面积施工工地产生的施工粉尘的影响就是其中之一。对大型构建筑物进行拆除是新城区建设和老城区改造不可缺少的一部分,其中最常用的拆除方法就是爆破拆除。然而,在城市拆除爆破工程中,爆破的瞬间会产生大量的粉尘,目前,关于爆破粉尘影响的研究并不多见。因此,通过选择一些大型废弃构筑物,进行城市拆除爆破工程粉尘扩散模型的研究,可以针对性的采取污染防治措施,有利于爆破粉尘污染控制,保护城市大气环境。本研究主要针对城市高架桥、立交桥等呈线状的构建筑物拆除爆破产生的粉尘进行研究,即城市拆除爆破工程的线状尘源扩散模型研究,主要研究内容包括四个方面。一是在查阅资料的基础上,利用数学建模的思想,从理论上构建城市拆除爆破工程线状尘源扩散模型;二是以武汉沌阳高架桥拆除爆破工程和武汉汪家嘴立交桥拆除爆破工程为例,进行线状尘源扩散特征实验,并对实验结果进行分析;三是以武汉沌阳高架桥拆除爆破工程和武汉汪家嘴立交桥拆除爆破工程为例,对所构建的城市拆除爆破工程线状尘源扩散模型进行验证;最后利用matlab的GUI工具箱,对模型进行可视化软件的设计,为爆破粉尘的污染防治提供一定的依据。通过模型构建、特征实验、模型验证和模型的可视化,本研究最终得到如下研究成果:(1)构建并验证了城市拆除爆破工程线状尘源扩散模型,具体公式为:(2)利用matlab的GUI工具箱,编制了城市拆除爆破工程线状尘源扩散模型可视化软件,使模型的表达更加直观化。总之,本研究能够有效预测城市中呈线状的构建筑物的拆除爆破粉尘扩散,为城市拆除爆破工程线状尘源扩散污染防治提供依据。
[Abstract]:In recent years, the phenomenon of haze appears frequently, which makes it become the focus of social attention. There are many reasons for this phenomenon, including the construction of new urban areas and the transformation of old urban areas. The impact of construction dust on large construction sites is one of them. Demolition of large structures is an indispensable part of the construction of new urban areas and the transformation of old urban areas. The most commonly used demolition method is blasting demolition. However, in urban demolition blasting engineering, a large amount of dust will be produced at the moment of blasting. At present, there are few researches on the impact of blasting dust. By selecting some large waste structures and studying the dust diffusion model of demolition blasting engineering, the pollution prevention measures can be taken, which is beneficial to the control of blasting dust pollution. This study mainly focuses on the dust produced by demolition blasting of urban viaduct and flyover, that is, the diffusion model of linear dust source in urban demolition blasting engineering. The main research contents include four aspects. Firstly, the linear dust source diffusion model of urban demolition blasting engineering is built theoretically by using mathematical modeling idea on the basis of consulting data; The second is taking Wuhan Zhuanyang viaduct demolition blasting project and Wuhan Wangjiazui overpass demolition blasting project as an example to carry on the linear dust source diffusion characteristic experiment, and carries on the analysis to the experimental result; Thirdly, taking the demolition blasting project of Wuhan Zhanyang viaduct and Wuhan Wangjiazui overpass as examples, this paper verifies the linear dust source diffusion model of urban demolition blasting project. Finally, using the GUI toolbox of matlab, the visual software of the model is designed, which provides a certain basis for the prevention and control of blasting dust pollution. Model validation and model visualization, this study finally obtained the following research results: 1) to build and verify the urban demolition blasting project linear dust source diffusion model. Using matlab's GUI toolbox, the visual software of linear dust source diffusion model for urban demolition blasting engineering is developed, which makes the expression of the model more intuitive. This study can effectively predict the demolition blasting dust diffusion of the linear structures in the city, and provide the basis for the prevention and control of the linear dust source diffusion pollution in the urban demolition blasting engineering.
【学位授予单位】：武汉理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：X799.1

【参考文献】