Affiliations: [a] Institute of Rock Mechanics, Ningbo University, Ningbo, Zhejiang, China
| [b] Ningbo Key Laboratory of Energy Geostructure, Ningbo, Zhejiang, China
Abstract: In large-section tunnel engineering, there is uncertain and inconsistent information in risk factors, due to complex geological, irregular hydrological conditions, limited survey technology, and inexperience of construction technicians. However, it is difficult for existing risk assessment methods to consider and express this uncertain information comprehensively, which will affect the accuracy of tunnel risk assessment. Hence, this paper develops a method of neutrosophic numbers similarity measure based on arcsine function to address the expression of uncertain information in the risk factors of large-section tunnel. The uncertain information in risk factors is considered comprehensively and the comprehensive weight of tunnel risk factors is calculated by the analytic hierarchy process and the entropy weight method in this method, in order to provide a reference for similar tunnels.
