{"title":"Calculation method of bearing capacity of screw pile under compression load based on limit equilibrium theory","authors":"Jiakuan Ma, Rui Wang, Zhiping Hu, Tong Mu, Anlong Liu, Victor Tolulope Olusegun","doi":"10.1680/jgeen.22.00122","DOIUrl":null,"url":null,"abstract":"The problem of calculating the ultimate bearing capacity of screw pile has been studied by the limit equilibrium theory in this paper. The calculation methods of the critical screw pitch and the ultimate bearing capacity under two representative failure modes are proposed. Four key parameters affecting the ultimate bearing capacity are compared and analyzed, and the design optimization suggestions are put forward. The results illustrate that the ultimate bearing capacity of the screw pile is mainly affected by the shear strength of soil, the height of screw thread and the screw pitch. When designing the screw pile, the height of screw thread could be increased and the screw pitch reduced to some extent.","PeriodicalId":54572,"journal":{"name":"Proceedings of the Institution of Civil Engineers-Geotechnical Engineering","volume":"3 1","pages":""},"PeriodicalIF":2.0000,"publicationDate":"2023-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of the Institution of Civil Engineers-Geotechnical Engineering","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1680/jgeen.22.00122","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, GEOLOGICAL","Score":null,"Total":0}
引用次数: 0
Abstract
The problem of calculating the ultimate bearing capacity of screw pile has been studied by the limit equilibrium theory in this paper. The calculation methods of the critical screw pitch and the ultimate bearing capacity under two representative failure modes are proposed. Four key parameters affecting the ultimate bearing capacity are compared and analyzed, and the design optimization suggestions are put forward. The results illustrate that the ultimate bearing capacity of the screw pile is mainly affected by the shear strength of soil, the height of screw thread and the screw pitch. When designing the screw pile, the height of screw thread could be increased and the screw pitch reduced to some extent.
期刊介绍:
Geotechnical Engineering provides a forum for the publication of high quality, topical and relevant technical papers covering all aspects of geotechnical research, design, construction and performance. The journal aims to be of interest to those civil, structural or geotechnical engineering practitioners wishing to develop a greater understanding of the influence of geotechnics on the built environment.