Evaluation of environmental impact of construction waste disposal based on fuzzy set analysis

Abstract

Abstract Construction waste brings great trouble to urban environmental management. The traditional construction waste disposal method has high operability and low cost. In this paper, the core concept of set pair analysis ”connection degree” and the core concept of variable fuzzy set theory ”difference degree” are essentially the same, and the improved and refined set pair analysis connection degree function is combined with variable fuzzy set theory. The concept of relation degree is used to simplify the formula of difference degree. The obtained characteristic function is substituted for the relative difference degree function in the variable fuzzy set, to establish the fuzzy set pair analysis evaluation model and realize the complementary advantages of the theory of set pair analysis and variable fuzzy set. The experimental results show that the evaluation results of the model presented in this paper are objective and reasonable, and more comprehensively reflect the impact of different construction waste disposal methods on the environment. At the same time, the construction process of fuzzy difference degree is simplified, the evaluation efficiency is improved, and a scientific method is provided for the evaluation of the environmental impact of different treatment methods of construction waste.