Upper bound limit analysis of horizontal and moment ultimate bearing capacities of bucket foundation
Offshore wind energy is one of the most important clean energy sources developing in China in recent years. As a new type of offshore wind turbine foundation, the wide-shallow bucket foundation with large diameter has a good ability to withstand moments. It is thus suitable for offshore region in Ch...
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| Format: | Article |
| Language: | English |
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SCIENCE PRESS , 16 DONGHUANGCHENGGEN NORTH ST, BEIJING, PEOPLES R CHINA, 100717
2022-03-01
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| Series: | Rock and Soil Mechanics |
| Subjects: | |
| Online Access: | http://rocksoilmech.whrsm.ac.cn/EN/10.16285/j.rsm.2021.5825 |
| _version_ | 1828348274352848896 |
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| author | WANG Jia-yu LIU Run JI Yong-hong CHEN Guang-si WANG Xiao-lei |
| author_facet | WANG Jia-yu LIU Run JI Yong-hong CHEN Guang-si WANG Xiao-lei |
| author_sort | WANG Jia-yu |
| collection | DOAJ |
| description | Offshore wind energy is one of the most important clean energy sources developing in China in recent years. As a new type of offshore wind turbine foundation, the wide-shallow bucket foundation with large diameter has a good ability to withstand moments. It is thus suitable for offshore region in China with soft clay deposits. Moreover, this type of foundation has advantages of onshore prefabrication, foundation-tower-turbine integrated floating transportation and suction installation, resulting in a good benefit for cost reduction. To better understand the bearing capacity of the wide-shallow bucket foundation in clay, numerical analyses are conducted to study the monotonic ultimate bearing behavior. The horizontal and moment ultimate bearing capacities and corresponding failure mechanisms are obtained. By building the velocity field based on the failure mechanisms of the bucket foundations, combined with the virtual work equation and the internal energy loss rate function, the upper bound solutions for the horizontal and moment ultimate bearing capacities of the bucket foundations are established and programmed using mathematical software. The results of the upper bound limit analysis have a good agreement with the calculation of the numerical analyses. |
| first_indexed | 2024-04-14T00:52:22Z |
| format | Article |
| id | doaj.art-2ceaa4cef84b4f4d80695fb801a85566 |
| institution | Directory Open Access Journal |
| issn | 1000-7598 |
| language | English |
| last_indexed | 2024-04-14T00:52:22Z |
| publishDate | 2022-03-01 |
| publisher | SCIENCE PRESS , 16 DONGHUANGCHENGGEN NORTH ST, BEIJING, PEOPLES R CHINA, 100717 |
| record_format | Article |
| series | Rock and Soil Mechanics |
| spelling | doaj.art-2ceaa4cef84b4f4d80695fb801a855662022-12-22T02:21:44ZengSCIENCE PRESS , 16 DONGHUANGCHENGGEN NORTH ST, BEIJING, PEOPLES R CHINA, 100717Rock and Soil Mechanics1000-75982022-03-0143377778810.16285/j.rsm.2021.5825Upper bound limit analysis of horizontal and moment ultimate bearing capacities of bucket foundation WANG Jia-yu0LIU Run1JI Yong-hong2CHEN Guang-si3WANG Xiao-lei41. State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin 300072, China; 2. Shanghai Municipal Engineering Design Institute (Group) Co., Ltd., Shanghai 200092, China State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin 300072, ChinaShanghai Municipal Engineering Design Institute (Group) Co., Ltd., Shanghai 200092, China State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin 300072, China School of Civil Engineering, Hebei University of Engineering, Handan, Hebei 056038, ChinaOffshore wind energy is one of the most important clean energy sources developing in China in recent years. As a new type of offshore wind turbine foundation, the wide-shallow bucket foundation with large diameter has a good ability to withstand moments. It is thus suitable for offshore region in China with soft clay deposits. Moreover, this type of foundation has advantages of onshore prefabrication, foundation-tower-turbine integrated floating transportation and suction installation, resulting in a good benefit for cost reduction. To better understand the bearing capacity of the wide-shallow bucket foundation in clay, numerical analyses are conducted to study the monotonic ultimate bearing behavior. The horizontal and moment ultimate bearing capacities and corresponding failure mechanisms are obtained. By building the velocity field based on the failure mechanisms of the bucket foundations, combined with the virtual work equation and the internal energy loss rate function, the upper bound solutions for the horizontal and moment ultimate bearing capacities of the bucket foundations are established and programmed using mathematical software. The results of the upper bound limit analysis have a good agreement with the calculation of the numerical analyses. http://rocksoilmech.whrsm.ac.cn/EN/10.16285/j.rsm.2021.5825bucket foundationupper bound limit analysisultimate bearing capacitynumerical method |
| spellingShingle | WANG Jia-yu LIU Run JI Yong-hong CHEN Guang-si WANG Xiao-lei Upper bound limit analysis of horizontal and moment ultimate bearing capacities of bucket foundation Rock and Soil Mechanics bucket foundation upper bound limit analysis ultimate bearing capacity numerical method |
| title | Upper bound limit analysis of horizontal and moment ultimate bearing capacities of bucket foundation |
| title_full | Upper bound limit analysis of horizontal and moment ultimate bearing capacities of bucket foundation |
| title_fullStr | Upper bound limit analysis of horizontal and moment ultimate bearing capacities of bucket foundation |
| title_full_unstemmed | Upper bound limit analysis of horizontal and moment ultimate bearing capacities of bucket foundation |
| title_short | Upper bound limit analysis of horizontal and moment ultimate bearing capacities of bucket foundation |
| title_sort | upper bound limit analysis of horizontal and moment ultimate bearing capacities of bucket foundation |
| topic | bucket foundation upper bound limit analysis ultimate bearing capacity numerical method |
| url | http://rocksoilmech.whrsm.ac.cn/EN/10.16285/j.rsm.2021.5825 |
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