Evaluation and analysis of bias tunnel diseases based on fuzzy mathematics theory

• Published in: IOP conference series. Earth and environmental science Vol. 525; no. 1; pp. 12023 - 12030
• Main Author: Liang, Huajiang
• Format: Journal Article
• Language: English
• Published: Bristol IOP Publishing 01.06.2020
• Subjects: Bias; Disease; Evaluation; Geology; Groundwater; Tunnels
• ISSN: 1755-1307; 1755-1315
• DOI: 10.1088/1755-1315/525/1/012023

Biased tunnels are subject to the combined effects of vehicle loads, groundwater, atmosphere, and geology during a long period of operation, resulting in the gradual incubation and development of tunnel diseases and tunnel damage. In order to effectively comprehensively evaluate the disease level of the bias tunnel in the operation stage, fuzzy mathematical theory is introduced in this paper. By determining the evaluation indexes of the tunnel disease at all levels, and considering the deterioration effect of the bias on the disease, the bias index is added, and the comprehensive and objective fuzzy operator is used to calculate. The tunnel is evaluated in sections to achieve a more accurate assessment of disease levels. The theory is applied to the disease evaluation of an operating biased tunnel, and a good evaluation result is obtained, This method furtherly perfects the fuzzy comprehensive evaluation system for the disease of biased tunnels.