{"title":"采用扰动法对粘土中的单层泥浆沟进行上限稳定性分析","authors":"","doi":"10.1016/j.compgeo.2024.106864","DOIUrl":null,"url":null,"abstract":"<div><div>This study systematically analyzed the stability of slurry trenches in clayey soils. The analysis focused on non-homogeneous clays with a linear increase in undrained shear strength. The perturbation procedures based on three-dimensional rigid translational moving elements are established and employed in the analysis. The findings of this study provide lower upper-bound solutions than the existing solutions and demonstrate the potential of the perturbation method in delivering precise upper-bound solutions. The study offers a comprehensive understanding of the factors affecting trench stability, including the dimensions of the trench (width, length, and depth), the properties of the slurry (unit weight and filling level), and the properties of the clay (unit weight, the undrained shear strength at the ground, and undrained strength gradient). The analysis is investigated by considering the dimensionless quantities associated with previous factors. Finally, a novel design equation is presented through nonlinear regression analysis of computed upper-bound solutions.</div></div>","PeriodicalId":55217,"journal":{"name":"Computers and Geotechnics","volume":null,"pages":null},"PeriodicalIF":5.3000,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Upper bound stability analysis of single-layered slurry trenches in clay using the perturbation method\",\"authors\":\"\",\"doi\":\"10.1016/j.compgeo.2024.106864\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>This study systematically analyzed the stability of slurry trenches in clayey soils. The analysis focused on non-homogeneous clays with a linear increase in undrained shear strength. The perturbation procedures based on three-dimensional rigid translational moving elements are established and employed in the analysis. The findings of this study provide lower upper-bound solutions than the existing solutions and demonstrate the potential of the perturbation method in delivering precise upper-bound solutions. The study offers a comprehensive understanding of the factors affecting trench stability, including the dimensions of the trench (width, length, and depth), the properties of the slurry (unit weight and filling level), and the properties of the clay (unit weight, the undrained shear strength at the ground, and undrained strength gradient). The analysis is investigated by considering the dimensionless quantities associated with previous factors. Finally, a novel design equation is presented through nonlinear regression analysis of computed upper-bound solutions.</div></div>\",\"PeriodicalId\":55217,\"journal\":{\"name\":\"Computers and Geotechnics\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":5.3000,\"publicationDate\":\"2024-10-30\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Computers and Geotechnics\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0266352X24008036\",\"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}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Computers and Geotechnics","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0266352X24008036","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}
Upper bound stability analysis of single-layered slurry trenches in clay using the perturbation method
This study systematically analyzed the stability of slurry trenches in clayey soils. The analysis focused on non-homogeneous clays with a linear increase in undrained shear strength. The perturbation procedures based on three-dimensional rigid translational moving elements are established and employed in the analysis. The findings of this study provide lower upper-bound solutions than the existing solutions and demonstrate the potential of the perturbation method in delivering precise upper-bound solutions. The study offers a comprehensive understanding of the factors affecting trench stability, including the dimensions of the trench (width, length, and depth), the properties of the slurry (unit weight and filling level), and the properties of the clay (unit weight, the undrained shear strength at the ground, and undrained strength gradient). The analysis is investigated by considering the dimensionless quantities associated with previous factors. Finally, a novel design equation is presented through nonlinear regression analysis of computed upper-bound solutions.
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.