Evaluation method of highway quality and safety based on finite element analysis

IF 0.8 Q4 ENGINEERING, CIVIL

Electronic Journal of Structural Engineering Pub Date : 2022-05-31 DOI:10.56748/ejse.2231901

Wei Zhao

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引用次数: 0

Abstract

With the continuous advancement of China's transportation infrastructure, the number and proportion of highway tunnels in expressway construction are increasing year by year. In order to accurately evaluate the quality and safety of highway tunnel engineering, the finite element analysis is used to evaluate the quality of highway tunnel secondary lining structure, the slotting method is used to analyze the working stress of tunnel secondary lining structure, and the load on the secondary lining structure is inversely analyzed combined with the finite element three-dimensional model to evaluate the quality and safety of tunnel secondary lining structure. The test results show that the error rate of working stress of secondary lining structure deduced by combining slotting method and finite element analysis is 2.22%, the average error rate of vertical uniformly distributed load analysis of two lane and three lane highway tunnels is 7.09%, and the average error rate of horizontal lateral pressure coefficient analysis is 16.37%. The numerical errors are within the acceptable accuracy range of actual highway tunnel engineering. Using finite element analysis to analyze the quality and safety of highway tunnel can accurately evaluate the quality and safety of secondary lining structure of tunnel engineering, and provide effective data reference for actual quality evaluation and defect reinforcement of tunnel engineering.

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基于有限元分析的公路质量安全评价方法

随着我国交通基础设施的不断推进，公路隧道在高速公路建设中的数量和比例逐年增加。为了准确评价公路隧道工程的质量和安全，采用有限元分析法对公路隧道二次衬砌结构的质量进行了评价，采用开槽法对隧道二次内衬结构的工作应力进行了分析，并结合有限元三维模型对二次衬砌结构的荷载进行反分析，评价隧道二次衬砌的质量和安全性。试验结果表明，采用开槽法和有限元分析相结合的方法推导出的二次衬砌结构工作应力误差率为2.22%，两车道和三车道公路隧道竖向均布荷载分析的平均误差率为7.09%，水平侧压力系数分析的平均误差率为16.37%，数值误差在实际公路隧道工程的可接受精度范围内。运用有限元分析方法对公路隧道的质量与安全进行分析，可以准确地评价隧道工程二次衬砌结构的质量和安全，为隧道工程的实际质量评价和缺陷加固提供有效的数据参考。

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来源期刊

Electronic Journal of Structural Engineering Engineering-Civil and Structural Engineering

CiteScore

1.10

自引率

16.70%

发文量

期刊介绍： The Electronic Journal of Structural Engineering (EJSE) is an international forum for the dissemination and discussion of leading edge research and practical applications in Structural Engineering. It comprises peer-reviewed technical papers, discussions and comments, and also news about conferences, workshops etc. in Structural Engineering. Original papers are invited from individuals involved in the field of structural engineering and construction. The areas of special interests include the following, but are not limited to: Analytical and design methods Bridges and High-rise Buildings Case studies and failure investigation Innovations in design and new technology New Construction Materials Performance of Structures Prefabrication Technology Repairs, Strengthening, and Maintenance Stability and Scaffolding Engineering Soil-structure interaction Standards and Codes of Practice Structural and solid mechanics Structural Safety and Reliability Testing Technologies Vibration, impact and structural dynamics Wind and earthquake engineering. EJSE is seeking original papers (research or state-of the art reviews) of the highest quality for consideration for publication. The papers will be published within 3 to 6 months. The papers are expected to make a significant contribution to the research and development activities of the academic and professional engineering community.