Model and numerical analyses of screw pile uplift in dry sand
This study investigated the performance of screw piles under uplift. The screw piles were installed in sand in the laboratory and uplifted to evaluate the effects of the screw thread pitch and relative density of sand on the pile uplift capacity. The uplift capacity was compared with that of the sha...
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| Veröffentlicht in: | Canadian geotechnical journal 2024-06, Vol.61 (6), p.1144-1158 |
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| container_title | Canadian geotechnical journal |
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| creator | Chen, Yadong Deng, An Zhao, Honghua Gong, Chengzhong Sun, Huasheng Cai, Jiangdong |
| description | This study investigated the performance of screw piles under uplift. The screw piles were installed in sand in the laboratory and uplifted to evaluate the effects of the screw thread pitch and relative density of sand on the pile uplift capacity. The uplift capacity was compared with that of the shaft pile using the digital image correlation technique. Discrete element modelling was used to further examine the load-sharing characteristics, axial force, and shaft friction of the screw pile. The results suggest that the screw pile outperformed the shaft pile in terms of uplift capacity, pile–sand interactions, and load transfer. The improved uplift performance is attributed to the screw threads reaching out to a larger volume of sand particles to resist the uplift. An equation was also proposed to determine the uplift capacity. |
| doi_str_mv | 10.1139/cgj-2022-0368 |
| format | Article |
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An equation was also proposed to determine the uplift capacity.</description><identifier>ISSN: 0008-3674</identifier><identifier>EISSN: 1208-6010</identifier><identifier>DOI: 10.1139/cgj-2022-0368</identifier><language>eng</language><publisher>Ottawa: Canadian Science Publishing NRC Research Press</publisher><subject>Axial forces ; Digital imaging ; Load sharing ; Load transfer ; Numerical analysis ; Piles ; Relative density ; Sand ; Sand particles ; Screw threads ; Shaft friction ; Specific gravity ; Uplift</subject><ispartof>Canadian geotechnical journal, 2024-06, Vol.61 (6), p.1144-1158</ispartof><rights>2024 Published by NRC Research Press</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c221t-e45956db61380bc7a2e434377d726572f016c5f34a47c4da7a9d246098efef373</cites><orcidid>0000-0002-3897-9803</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids></links><search><creatorcontrib>Chen, Yadong</creatorcontrib><creatorcontrib>Deng, An</creatorcontrib><creatorcontrib>Zhao, Honghua</creatorcontrib><creatorcontrib>Gong, Chengzhong</creatorcontrib><creatorcontrib>Sun, Huasheng</creatorcontrib><creatorcontrib>Cai, Jiangdong</creatorcontrib><title>Model and numerical analyses of screw pile uplift in dry sand</title><title>Canadian geotechnical journal</title><description>This study investigated the performance of screw piles under uplift. The screw piles were installed in sand in the laboratory and uplifted to evaluate the effects of the screw thread pitch and relative density of sand on the pile uplift capacity. The uplift capacity was compared with that of the shaft pile using the digital image correlation technique. Discrete element modelling was used to further examine the load-sharing characteristics, axial force, and shaft friction of the screw pile. The results suggest that the screw pile outperformed the shaft pile in terms of uplift capacity, pile–sand interactions, and load transfer. The improved uplift performance is attributed to the screw threads reaching out to a larger volume of sand particles to resist the uplift. An equation was also proposed to determine the uplift capacity.</description><subject>Axial forces</subject><subject>Digital imaging</subject><subject>Load sharing</subject><subject>Load transfer</subject><subject>Numerical analysis</subject><subject>Piles</subject><subject>Relative density</subject><subject>Sand</subject><subject>Sand particles</subject><subject>Screw threads</subject><subject>Shaft friction</subject><subject>Specific gravity</subject><subject>Uplift</subject><issn>0008-3674</issn><issn>1208-6010</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><recordid>eNotkM1LAzEUxIMoWKtH7wHP0ZeXr92DBylahYoXPYc0H7Jl212TXaT_vbvU08zAzOPxI-SWwz3non7w3zuGgMhA6OqMLDhCxTRwOCcLgMkLbeQluSplB8ClRFyQx_cuxJa6Q6CHcR9z492cXHsssdAu0eJz_KV900Y69m2TBtocaMhHWqbNNblIri3x5l-X5Ovl-XP1yjYf67fV04Z5RD6wKFWtdNhqLirYeuMwSiGFMcGgVgYTcO1VEtJJ42VwxtUBpYa6iikmYcSS3J3u9rn7GWMZ7K4b8_RlsQI0VkoqoaYWO7V87krJMdk-N3uXj5aDnQnZiZCdCdmZkPgDNgZXbw</recordid><startdate>20240601</startdate><enddate>20240601</enddate><creator>Chen, Yadong</creator><creator>Deng, An</creator><creator>Zhao, Honghua</creator><creator>Gong, Chengzhong</creator><creator>Sun, Huasheng</creator><creator>Cai, Jiangdong</creator><general>Canadian Science Publishing NRC Research Press</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7TG</scope><scope>7UA</scope><scope>8FD</scope><scope>C1K</scope><scope>F1W</scope><scope>FR3</scope><scope>H96</scope><scope>KL.</scope><scope>KR7</scope><scope>L.G</scope><orcidid>https://orcid.org/0000-0002-3897-9803</orcidid></search><sort><creationdate>20240601</creationdate><title>Model and numerical analyses of screw pile uplift in dry sand</title><author>Chen, Yadong ; Deng, An ; Zhao, Honghua ; Gong, Chengzhong ; Sun, Huasheng ; Cai, Jiangdong</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c221t-e45956db61380bc7a2e434377d726572f016c5f34a47c4da7a9d246098efef373</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><topic>Axial forces</topic><topic>Digital imaging</topic><topic>Load sharing</topic><topic>Load transfer</topic><topic>Numerical analysis</topic><topic>Piles</topic><topic>Relative density</topic><topic>Sand</topic><topic>Sand particles</topic><topic>Screw threads</topic><topic>Shaft friction</topic><topic>Specific gravity</topic><topic>Uplift</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Chen, Yadong</creatorcontrib><creatorcontrib>Deng, An</creatorcontrib><creatorcontrib>Zhao, Honghua</creatorcontrib><creatorcontrib>Gong, Chengzhong</creatorcontrib><creatorcontrib>Sun, Huasheng</creatorcontrib><creatorcontrib>Cai, Jiangdong</creatorcontrib><collection>CrossRef</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Water Resources Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Civil Engineering Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><jtitle>Canadian geotechnical journal</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Chen, Yadong</au><au>Deng, An</au><au>Zhao, Honghua</au><au>Gong, Chengzhong</au><au>Sun, Huasheng</au><au>Cai, Jiangdong</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Model and numerical analyses of screw pile uplift in dry sand</atitle><jtitle>Canadian geotechnical journal</jtitle><date>2024-06-01</date><risdate>2024</risdate><volume>61</volume><issue>6</issue><spage>1144</spage><epage>1158</epage><pages>1144-1158</pages><issn>0008-3674</issn><eissn>1208-6010</eissn><abstract>This study investigated the performance of screw piles under uplift. The screw piles were installed in sand in the laboratory and uplifted to evaluate the effects of the screw thread pitch and relative density of sand on the pile uplift capacity. The uplift capacity was compared with that of the shaft pile using the digital image correlation technique. Discrete element modelling was used to further examine the load-sharing characteristics, axial force, and shaft friction of the screw pile. The results suggest that the screw pile outperformed the shaft pile in terms of uplift capacity, pile–sand interactions, and load transfer. The improved uplift performance is attributed to the screw threads reaching out to a larger volume of sand particles to resist the uplift. An equation was also proposed to determine the uplift capacity.</abstract><cop>Ottawa</cop><pub>Canadian Science Publishing NRC Research Press</pub><doi>10.1139/cgj-2022-0368</doi><tpages>15</tpages><orcidid>https://orcid.org/0000-0002-3897-9803</orcidid></addata></record> |
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| ispartof | Canadian geotechnical journal, 2024-06, Vol.61 (6), p.1144-1158 |
| issn | 0008-3674 1208-6010 |
| language | eng |
| recordid | cdi_proquest_journals_3062854535 |
| source | NRC Research Press; Alma/SFX Local Collection |
| subjects | Axial forces Digital imaging Load sharing Load transfer Numerical analysis Piles Relative density Sand Sand particles Screw threads Shaft friction Specific gravity Uplift |
| title | Model and numerical analyses of screw pile uplift in dry sand |
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