{"title":"用张力截断Tresca强度准则评价黏性土中浅埋板锚不排水突破能力","authors":"R. Ganesh","doi":"10.1016/j.oceaneng.2025.122042","DOIUrl":null,"url":null,"abstract":"<div><div>Plate anchors are widely used to provide economical mooring systems for many offshore infrastructures. Previous studies examining the undrained breakout capacity of plate anchors in purely cohesive soils were predominantly based on the classical Tresca (CT) strength criterion, which assumes equal uniaxial yield strengths in compression and tension. However, the observed uniaxial tensile strength of cohesive soils is often much lower than its compression counterpart, emphasizing the need to consider realistic tensile strength in practical engineering applications. This research investigates the potential impact of a tensile strength cutoff on the ultimate undrained breakout capacity of shallowly buried horizontal plate anchors in purely cohesive soils, utilizing a tension-truncated Tresca (TT) strength criterion. The analysis employs the discrete sum method based on horizontal slices within the upper bound plasticity theory to calculate the undrained breakout capacity of plate anchors under varying shapes, including circular, square, rectangular, and strip. A comparison of results obtained using both CT and TT strength criteria reveals a significant effect of the tension cutoff on the ultimate undrained breakout capacity of plate anchors in cohesive soils. Additionally, the study explores the influence of different anchor-soil interface conditions and the associated breakout failure surfaces under typical parameter combinations. Remarkably, the results of this study align well with the available numerical and experimental results in the existing literature.</div></div>","PeriodicalId":19403,"journal":{"name":"Ocean Engineering","volume":"338 ","pages":"Article 122042"},"PeriodicalIF":5.5000,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Evaluation of undrained breakout capacity of shallowly buried plate anchors in cohesive soils using a tension-truncated Tresca strength criterion\",\"authors\":\"R. Ganesh\",\"doi\":\"10.1016/j.oceaneng.2025.122042\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Plate anchors are widely used to provide economical mooring systems for many offshore infrastructures. Previous studies examining the undrained breakout capacity of plate anchors in purely cohesive soils were predominantly based on the classical Tresca (CT) strength criterion, which assumes equal uniaxial yield strengths in compression and tension. However, the observed uniaxial tensile strength of cohesive soils is often much lower than its compression counterpart, emphasizing the need to consider realistic tensile strength in practical engineering applications. This research investigates the potential impact of a tensile strength cutoff on the ultimate undrained breakout capacity of shallowly buried horizontal plate anchors in purely cohesive soils, utilizing a tension-truncated Tresca (TT) strength criterion. The analysis employs the discrete sum method based on horizontal slices within the upper bound plasticity theory to calculate the undrained breakout capacity of plate anchors under varying shapes, including circular, square, rectangular, and strip. A comparison of results obtained using both CT and TT strength criteria reveals a significant effect of the tension cutoff on the ultimate undrained breakout capacity of plate anchors in cohesive soils. Additionally, the study explores the influence of different anchor-soil interface conditions and the associated breakout failure surfaces under typical parameter combinations. Remarkably, the results of this study align well with the available numerical and experimental results in the existing literature.</div></div>\",\"PeriodicalId\":19403,\"journal\":{\"name\":\"Ocean Engineering\",\"volume\":\"338 \",\"pages\":\"Article 122042\"},\"PeriodicalIF\":5.5000,\"publicationDate\":\"2025-06-30\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Ocean Engineering\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0029801825017482\",\"RegionNum\":2,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENGINEERING, CIVIL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Ocean Engineering","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0029801825017482","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, CIVIL","Score":null,"Total":0}
Evaluation of undrained breakout capacity of shallowly buried plate anchors in cohesive soils using a tension-truncated Tresca strength criterion
Plate anchors are widely used to provide economical mooring systems for many offshore infrastructures. Previous studies examining the undrained breakout capacity of plate anchors in purely cohesive soils were predominantly based on the classical Tresca (CT) strength criterion, which assumes equal uniaxial yield strengths in compression and tension. However, the observed uniaxial tensile strength of cohesive soils is often much lower than its compression counterpart, emphasizing the need to consider realistic tensile strength in practical engineering applications. This research investigates the potential impact of a tensile strength cutoff on the ultimate undrained breakout capacity of shallowly buried horizontal plate anchors in purely cohesive soils, utilizing a tension-truncated Tresca (TT) strength criterion. The analysis employs the discrete sum method based on horizontal slices within the upper bound plasticity theory to calculate the undrained breakout capacity of plate anchors under varying shapes, including circular, square, rectangular, and strip. A comparison of results obtained using both CT and TT strength criteria reveals a significant effect of the tension cutoff on the ultimate undrained breakout capacity of plate anchors in cohesive soils. Additionally, the study explores the influence of different anchor-soil interface conditions and the associated breakout failure surfaces under typical parameter combinations. Remarkably, the results of this study align well with the available numerical and experimental results in the existing literature.
期刊介绍:
Ocean Engineering provides a medium for the publication of original research and development work in the field of ocean engineering. Ocean Engineering seeks papers in the following topics.