Empirical Study Of Exterior Disaster In Freeway Building

According to the practical problem based on freeway constructing in our nation and evaluation theory about exterior disturbing in freeway constructing. This paper first brings forward the research issues. This paper analyses traditional disaster evaluation theory during freeway constructed, composing of disturbing about nature disaster and jamming and machine operation, early-warning measures established by supervisor. This review established theory foundation for research in this paper and show innovation in this domain. Genes of exterior disaster in freeway constructing were divided and four variables influencing quality of freeway constructing were summarized and twelve supposing were abstracted in this paper.In third chapter, the interrelation about exterior disaster and quality of constructing was demonstrated using data in questionnaire. At first, through Factor Analysis, the existing four dimensions of exterior disaster were divided into three dimensions so that the difference in them could be defined. At second through the Correlation Analysis and Stepwise Regression Analysis, the relation between the three factors and four key elements have been validated; at last, the 12 hypothesis have been confirmed, this study obtained the conclusion.Based on the theory study and positive validation, in chapter five, the Early-warning model aimed at exterior disaster in freeway constructing was established. In this model, exterior early-warning about environment and interior early-warning about management were designed.This main conclusion of this study is:First genes of exterior disaster in freeway constructing have been divided into three dimensions, that is: nature disaster disturbing, jamming disturb, machine operation disturb. Management disturbing has been impenetrate in the three disaster genes. And this paper has researched the relation between these dimensions and the four key variables.Secondly, the analysis of the interaction among the four key variables confirms the function mechanism of the exterior disaster influence to quality of freeway constructing.Thirdly, based on the theory and practical research, this research set up the Early-warning model of freeway constructing operated by constructing and management sector, and set up jamming disturb is very important in evaluation about exterior disasters.