Deformation and failure mechanism of deep-buried tunnel under the action of fault dislocation and application of nonlocal model in numerical simulation research

IF 4.4 2区工程技术 Q1 ENGINEERING, MECHANICAL

Engineering Failure Analysis Pub Date : 2025-03-05 DOI:10.1016/j.engfailanal.2025.109496

Ning Zhang , Hui Zhou , Yang Gao , Yong Zhu , Jingjing Lu , Chengwei Zhao , Guangtan Cheng

{"title":"Deformation and failure mechanism of deep-buried tunnel under the action of fault dislocation and application of nonlocal model in numerical simulation research","authors":"Ning Zhang , Hui Zhou , Yang Gao , Yong Zhu , Jingjing Lu , Chengwei Zhao , Guangtan Cheng","doi":"10.1016/j.engfailanal.2025.109496","DOIUrl":null,"url":null,"abstract":"<div><div>Fault dislocation leads to the deformation and failure of deep-buried tunnels, directly affecting the safety of human life and property. In this paper, a physical model test is performed to summarize the deformation and failure mechanism of a deep-buried tunnel subjected to fault dislocation by analyzing tunnel strain, contact pressure, and failure mode. The test is then simulated using a nonlocal model to verify its validity in simulating the response characteristics of tunnel deformation and failure under fault dislocation. The results show that: (1) The deep-buried tunnel undergoes deformation and failure under shear, bending, and compression combined. The shape of the tunnel model after the overall deformation is relatively similar to that of ’S’; (2) The nonlocal model can effectively reproduce the test results and resolve the mesh-dependent problem of numerical simulation results. The research results have guiding significance for the design and construction of deep-buried tunnels that pass through faults. These findings expand the numerical simulation methods for studying the response characteristics of tunnels to fault dislocation.</div></div>","PeriodicalId":11677,"journal":{"name":"Engineering Failure Analysis","volume":"174 ","pages":"Article 109496"},"PeriodicalIF":4.4000,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Engineering Failure Analysis","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1350630725002377","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, MECHANICAL","Score":null,"Total":0}

引用次数: 0

Abstract

Fault dislocation leads to the deformation and failure of deep-buried tunnels, directly affecting the safety of human life and property. In this paper, a physical model test is performed to summarize the deformation and failure mechanism of a deep-buried tunnel subjected to fault dislocation by analyzing tunnel strain, contact pressure, and failure mode. The test is then simulated using a nonlocal model to verify its validity in simulating the response characteristics of tunnel deformation and failure under fault dislocation. The results show that: (1) The deep-buried tunnel undergoes deformation and failure under shear, bending, and compression combined. The shape of the tunnel model after the overall deformation is relatively similar to that of ’S’; (2) The nonlocal model can effectively reproduce the test results and resolve the mesh-dependent problem of numerical simulation results. The research results have guiding significance for the design and construction of deep-buried tunnels that pass through faults. These findings expand the numerical simulation methods for studying the response characteristics of tunnels to fault dislocation.

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

Engineering Failure Analysis 工程技术-材料科学：表征与测试

CiteScore

7.70

自引率

20.00%

发文量

956

审稿时长

47 days

期刊介绍： Engineering Failure Analysis publishes research papers describing the analysis of engineering failures and related studies. Papers relating to the structure, properties and behaviour of engineering materials are encouraged, particularly those which also involve the detailed application of materials parameters to problems in engineering structures, components and design. In addition to the area of materials engineering, the interacting fields of mechanical, manufacturing, aeronautical, civil, chemical, corrosion and design engineering are considered relevant. Activity should be directed at analysing engineering failures and carrying out research to help reduce the incidences of failures and to extend the operating horizons of engineering materials. Emphasis is placed on the mechanical properties of materials and their behaviour when influenced by structure, process and environment. Metallic, polymeric, ceramic and natural materials are all included and the application of these materials to real engineering situations should be emphasised. The use of a case-study based approach is also encouraged. Engineering Failure Analysis provides essential reference material and critical feedback into the design process thereby contributing to the prevention of engineering failures in the future. All submissions will be subject to peer review from leading experts in the field.