Plate Load Tests of Soft Foundations Reinforced by Soilbags with Solid Wastes for Wind Farms
Soilbags are expandable three-dimensional geosynthetic bags made from high-density polyethylene or polypropylene. This study conducted a series of plate load tests to explore the bearing capacity of soft foundations reinforced by soilbags filled with solid wastes based on an onshore wind farm projec...
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MDPI AG
2023-06-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/16/11/4173 |
| _version_ | 1797597144034574336 |
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| author | Chenchen Zhang Jie Liao Yuchi Zhang Liujiang Wang |
| author_facet | Chenchen Zhang Jie Liao Yuchi Zhang Liujiang Wang |
| author_sort | Chenchen Zhang |
| collection | DOAJ |
| description | Soilbags are expandable three-dimensional geosynthetic bags made from high-density polyethylene or polypropylene. This study conducted a series of plate load tests to explore the bearing capacity of soft foundations reinforced by soilbags filled with solid wastes based on an onshore wind farm project in China. The effect of contained material on the bearing capacity of the soilbag-reinforced foundation was investigated during the field tests. The experimental studies indicated that soilbag reinforcement with reused solid wastes could substantially improve the bearing capacity of soft foundations under vertical loading conditions. Solid wastes like excavated soil or brick slag residues were found to be suitable as contained material, and the soilbags with plain soil mixed with brick slag had higher bearing capacity than those with pure plain soil. The earth pressure analysis indicated that stress diffusion occurred through the soilbag layers to reduce the load transferred to the underlying soft soil. The stress diffusion angle of soilbag reinforcement obtained from the tests was approximately 38°. In addition, combining soilbag reinforcement with bottom sludge permeable treatment was an effective foundation reinforcement method, which required fewer soilbag layers due to its relatively high permeability. Furthermore, soilbags are considered sustainable construction materials with advantages such as high construction efficiency, low cost, easy reclamation and environmental friendliness while making full use of local solid wastes. |
| first_indexed | 2024-03-11T03:02:38Z |
| format | Article |
| id | doaj.art-6c7cc41bcf834f01b9d3fad07bdf0ff2 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-11T03:02:38Z |
| publishDate | 2023-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-6c7cc41bcf834f01b9d3fad07bdf0ff22023-11-18T08:11:16ZengMDPI AGMaterials1996-19442023-06-011611417310.3390/ma16114173Plate Load Tests of Soft Foundations Reinforced by Soilbags with Solid Wastes for Wind FarmsChenchen Zhang0Jie Liao1Yuchi Zhang2Liujiang Wang3College of Water Conservancy and Hydropower, Hohai University, Nanjing 210098, ChinaCollege of Water Conservancy and Hydropower, Hohai University, Nanjing 210098, ChinaDepartment of Hydraulic Engineering, Zhejiang Tongji Vocational College of Science and Technology, Hangzhou 311231, ChinaCollege of Water Conservancy and Hydropower, Hohai University, Nanjing 210098, ChinaSoilbags are expandable three-dimensional geosynthetic bags made from high-density polyethylene or polypropylene. This study conducted a series of plate load tests to explore the bearing capacity of soft foundations reinforced by soilbags filled with solid wastes based on an onshore wind farm project in China. The effect of contained material on the bearing capacity of the soilbag-reinforced foundation was investigated during the field tests. The experimental studies indicated that soilbag reinforcement with reused solid wastes could substantially improve the bearing capacity of soft foundations under vertical loading conditions. Solid wastes like excavated soil or brick slag residues were found to be suitable as contained material, and the soilbags with plain soil mixed with brick slag had higher bearing capacity than those with pure plain soil. The earth pressure analysis indicated that stress diffusion occurred through the soilbag layers to reduce the load transferred to the underlying soft soil. The stress diffusion angle of soilbag reinforcement obtained from the tests was approximately 38°. In addition, combining soilbag reinforcement with bottom sludge permeable treatment was an effective foundation reinforcement method, which required fewer soilbag layers due to its relatively high permeability. Furthermore, soilbags are considered sustainable construction materials with advantages such as high construction efficiency, low cost, easy reclamation and environmental friendliness while making full use of local solid wastes.https://www.mdpi.com/1996-1944/16/11/4173plate load testsustainable construction materialsoilbagssolid wastesoft foundationwind farm |
| spellingShingle | Chenchen Zhang Jie Liao Yuchi Zhang Liujiang Wang Plate Load Tests of Soft Foundations Reinforced by Soilbags with Solid Wastes for Wind Farms Materials plate load test sustainable construction material soilbags solid waste soft foundation wind farm |
| title | Plate Load Tests of Soft Foundations Reinforced by Soilbags with Solid Wastes for Wind Farms |
| title_full | Plate Load Tests of Soft Foundations Reinforced by Soilbags with Solid Wastes for Wind Farms |
| title_fullStr | Plate Load Tests of Soft Foundations Reinforced by Soilbags with Solid Wastes for Wind Farms |
| title_full_unstemmed | Plate Load Tests of Soft Foundations Reinforced by Soilbags with Solid Wastes for Wind Farms |
| title_short | Plate Load Tests of Soft Foundations Reinforced by Soilbags with Solid Wastes for Wind Farms |
| title_sort | plate load tests of soft foundations reinforced by soilbags with solid wastes for wind farms |
| topic | plate load test sustainable construction material soilbags solid waste soft foundation wind farm |
| url | https://www.mdpi.com/1996-1944/16/11/4173 |
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