Analysis And Evaluation On Environmental Quality Of Expressway Construction In Guizhou Mountainous Area

Along with the sustained and rapid development of China's economy,Mountain Expressway is also developing,while the mountainous area of expressway construction caused by the mountain environment problem is increasingly serious.The environmental problems caused by the expressway construction in mountainous area have been paid more and more attention.This paper discusses the environmental impact factors of expressway construction in mountainous areas,and from the aspects of atmosphere environment,water environment,sound environment,ecological environment and so on,comprehensively analyzes the influence on the mountain environment caused by expressway during construction and operation period.Comprehensive evaluation of Expressway Environmental Quality Assessment Index system and comprehensive evaluation model was established by means of domestic and international literature and expert questionnaire survey.Overall,the main content of the thesis is as follows:(1)Combining the development course of Expressway and Expressway in Guizhou mountainous area,this paper analyzes the environmental problems of expressway construction,the research progress of environmental impact assessment,the future development trend and the existing deficiencies,and develops the research technology roadmap.(2)In this paper,the environmental impact analysis of mountainous expressway is carried out,and the influence of the air environment,water environment,sound environment and ecological environment of expressway construction in the area of the road area in the period of constructing and operating is analyzed respectively,which lays the foundation for the establishment of the evaluation Index system.(3)According to the characteristics of natural environment and mountainous expressway,the corresponding evaluation index system is established by scientific method on the basis of systematic analysis,and the quantitative method of index is given and the individual indexes are analyzed in detail.The comprehensive evaluation model of environmental quality is established by using the fuzzy mathematics theory and the analytic hierarchy process.(4)Taking the Chongzun expressway as the research object,this paper makes a systematic analysis on the environmental problems that may be affected by the environment of Expressway Road area,uses the comprehensive evaluation model of environmental quality impact,and puts forward the corresponding protective measures.The comprehensive evaluation model of environmental quality impact is used.This paper analyzes the environmental impact of expressway construction from the point of view of Highway Division Engineering,establishes the comprehensive evaluation model of environmental quality,and applies it in the physical engineering,which has its theoretical significance and application value.