As the rockfall is complex and ever-changing, so in the analysis process, mainly discussed the slope of the morphological parameters, and other factors' impact were omitted, or had little impact with an assumption. As the project example, rock collapse occurred continuously after JingYing Expressway had been completed for some parts of complex geological conditions, which impacting on traffic and the safety of nearby residents seriously. In this paper, using fuzzy mathematics comprehensive evaluation methods, firstly from the evaluation factors defined, and gave the membership of the evaluation a detailed analysis, and reached the final of the parameters relationship, meanwhile, gave the various parameters portfolio a preliminary discussions, finally gained the summary of the outcome, which can provide a basis for the future with a similar project in analogy.
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