{"title":"Behaviour of existing tunnel due to new tunnel construction below","authors":"Xiang Liu, Qian Fang, Dingli Zhang, Zhongju Wang","doi":"10.1016/j.compgeo.2019.02.013","DOIUrl":null,"url":null,"abstract":"<div><p><span>This paper proposed an analytical method to study the mechanical behaviours of the existing tunnel<span> due to new tunnelling below. The coefficient of subgrade reaction of the existing tunnel can be considered as a variation instead of a constant. The resultant deflections of the existing tunnel can be calculated by a superimposed method. The proposed method is verified by the </span></span>finite element method. The influences of the input parameters on the deflection of the existing tunnel are studied. Based on a below-crossing project in Beijing, the results obtained by our method match well with the monitoring data.</p></div>","PeriodicalId":55217,"journal":{"name":"Computers and Geotechnics","volume":"110 ","pages":"Pages 71-81"},"PeriodicalIF":5.3000,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.compgeo.2019.02.013","citationCount":"55","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Computers and Geotechnics","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0266352X19300461","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS","Score":null,"Total":0}
引用次数: 55
Abstract
This paper proposed an analytical method to study the mechanical behaviours of the existing tunnel due to new tunnelling below. The coefficient of subgrade reaction of the existing tunnel can be considered as a variation instead of a constant. The resultant deflections of the existing tunnel can be calculated by a superimposed method. The proposed method is verified by the finite element method. The influences of the input parameters on the deflection of the existing tunnel are studied. Based on a below-crossing project in Beijing, the results obtained by our method match well with the monitoring data.
期刊介绍：
The use of computers is firmly established in geotechnical engineering and continues to grow rapidly in both engineering practice and academe. The development of advanced numerical techniques and constitutive modeling, in conjunction with rapid developments in computer hardware, enables problems to be tackled that were unthinkable even a few years ago. Computers and Geotechnics provides an up-to-date reference for engineers and researchers engaged in computer aided analysis and research in geotechnical engineering. The journal is intended for an expeditious dissemination of advanced computer applications across a broad range of geotechnical topics. Contributions on advances in numerical algorithms, computer implementation of new constitutive models and probabilistic methods are especially encouraged.
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