{"title":"一种描述隧道开挖引起的地震动特性的新分析方法","authors":"Qingtao Lin, Tao Song, Dechun Lu, Xiuli Du","doi":"10.1016/j.tust.2025.106546","DOIUrl":null,"url":null,"abstract":"<div><div>A model is proposed to describe the soil movement caused by tunnel excavation. The mathematical relationships for soil displacement in both the horizontal and vertical directions are established. An optimized Gaussian function is developed to accommodate various ground conditions for describing vertical displacement, then, a formula for horizontal displacement is derived on this basis, providing a unified calculation method for both vertical and horizontal displacements. Utilizing the principles of elastic–plastic mechanics, the vertical and horizontal strains of soil are obtained by solving the first-order partial derivative of the displacement formulas. Subsequently, formulas for volume strain and engineering shear strain are derived using the Mohr strain circle. The validity of the displacement and strain formulas is confirmed through comparison with measured results from sandy strata (4 sets) and clay strata (2 sets). In conclusion, a comprehensive empirical framework for analyzing ground disturbance caused by tunnel excavation is established. The method relies on just two parameters and four known quantities, making it convenient for practical engineering.</div></div>","PeriodicalId":49414,"journal":{"name":"Tunnelling and Underground Space Technology","volume":"161 ","pages":"Article 106546"},"PeriodicalIF":7.4000,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A novel analytical method for describing ground motion behaviour caused by tunnel excavation\",\"authors\":\"Qingtao Lin, Tao Song, Dechun Lu, Xiuli Du\",\"doi\":\"10.1016/j.tust.2025.106546\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>A model is proposed to describe the soil movement caused by tunnel excavation. The mathematical relationships for soil displacement in both the horizontal and vertical directions are established. An optimized Gaussian function is developed to accommodate various ground conditions for describing vertical displacement, then, a formula for horizontal displacement is derived on this basis, providing a unified calculation method for both vertical and horizontal displacements. Utilizing the principles of elastic–plastic mechanics, the vertical and horizontal strains of soil are obtained by solving the first-order partial derivative of the displacement formulas. Subsequently, formulas for volume strain and engineering shear strain are derived using the Mohr strain circle. The validity of the displacement and strain formulas is confirmed through comparison with measured results from sandy strata (4 sets) and clay strata (2 sets). In conclusion, a comprehensive empirical framework for analyzing ground disturbance caused by tunnel excavation is established. The method relies on just two parameters and four known quantities, making it convenient for practical engineering.</div></div>\",\"PeriodicalId\":49414,\"journal\":{\"name\":\"Tunnelling and Underground Space Technology\",\"volume\":\"161 \",\"pages\":\"Article 106546\"},\"PeriodicalIF\":7.4000,\"publicationDate\":\"2025-07-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Tunnelling and Underground Space Technology\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0886779825001841\",\"RegionNum\":1,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"2025/3/9 0:00:00\",\"PubModel\":\"Epub\",\"JCR\":\"Q1\",\"JCRName\":\"CONSTRUCTION & BUILDING TECHNOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Tunnelling and Underground Space Technology","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0886779825001841","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/3/9 0:00:00","PubModel":"Epub","JCR":"Q1","JCRName":"CONSTRUCTION & BUILDING TECHNOLOGY","Score":null,"Total":0}
A novel analytical method for describing ground motion behaviour caused by tunnel excavation
A model is proposed to describe the soil movement caused by tunnel excavation. The mathematical relationships for soil displacement in both the horizontal and vertical directions are established. An optimized Gaussian function is developed to accommodate various ground conditions for describing vertical displacement, then, a formula for horizontal displacement is derived on this basis, providing a unified calculation method for both vertical and horizontal displacements. Utilizing the principles of elastic–plastic mechanics, the vertical and horizontal strains of soil are obtained by solving the first-order partial derivative of the displacement formulas. Subsequently, formulas for volume strain and engineering shear strain are derived using the Mohr strain circle. The validity of the displacement and strain formulas is confirmed through comparison with measured results from sandy strata (4 sets) and clay strata (2 sets). In conclusion, a comprehensive empirical framework for analyzing ground disturbance caused by tunnel excavation is established. The method relies on just two parameters and four known quantities, making it convenient for practical engineering.
期刊介绍：
Tunnelling and Underground Space Technology is an international journal which publishes authoritative articles encompassing the development of innovative uses of underground space and the results of high quality research into improved, more cost-effective techniques for the planning, geo-investigation, design, construction, operation and maintenance of underground and earth-sheltered structures. The journal provides an effective vehicle for the improved worldwide exchange of information on developments in underground technology - and the experience gained from its use - and is strongly committed to publishing papers on the interdisciplinary aspects of creating, planning, and regulating underground space.
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