Study on Structure and Seepage Control Safety of Second-Phase Cofferdam in Datengxia Water Conservancy Project
The second-phase earth-rock cofferdam in the Datengxia Water Conservancy Project is one of the most important temporary buildings,and its design and construction reflect major key technologies of the Datengxia Water Conservancy Project.In order to ensure the safety of the second-phase deepwater coff...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Pearl River
2023-01-01
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| Series: | Renmin Zhujiang |
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| Online Access: | http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2023.07.004 |
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| author | ZUO Yongzhen CHEN Liang XU Han LI Bo CHEN Jinsong |
| author_facet | ZUO Yongzhen CHEN Liang XU Han LI Bo CHEN Jinsong |
| author_sort | ZUO Yongzhen |
| collection | DOAJ |
| description | The second-phase earth-rock cofferdam in the Datengxia Water Conservancy Project is one of the most important temporary buildings,and its design and construction reflect major key technologies of the Datengxia Water Conservancy Project.In order to ensure the safety of the second-phase deepwater cofferdam project,a special scientific research demonstration was conducted on the structure and seepage control safety of the second-phase deepwater cofferdam.In view of the difficulty in determining the density of the cofferdam formed by deepwater dumping and the feasibility of the anti-seepage system with a single anti-seepage wall connected to the geomembrane,experimental research was carried out through the centrifugal model test,so as to determine the underwater dumping density and angle of repose,the mechanical characteristics of cofferdam filler,the shear characteristics of the interface between filler and plastic concrete,and the characteristics of plastic concrete materials.The finite element analysis of stress deformation and the seepage stability analysis of the cofferdam were carried out,and the safety analysis evaluation and the section optimization design of the cofferdam were performed.The second-phase cofferdam has undergone two flood seasons of safe water retention operation,with a small total seepage flow,slight maximum settlement,and low horizontal displacement.The scientific research work has well supported the design requirements. |
| format | Article |
| id | doaj-art-e070ed45520643d1adf9a915b5f29478 |
| institution | Kabale University |
| issn | 1001-9235 |
| language | zho |
| publishDate | 2023-01-01 |
| publisher | Editorial Office of Pearl River |
| record_format | Article |
| series | Renmin Zhujiang |
| spelling | doaj-art-e070ed45520643d1adf9a915b5f294782025-01-15T02:22:19ZzhoEditorial Office of Pearl RiverRenmin Zhujiang1001-92352023-01-014447638144Study on Structure and Seepage Control Safety of Second-Phase Cofferdam in Datengxia Water Conservancy ProjectZUO YongzhenCHEN LiangXU HanLI BoCHEN JinsongThe second-phase earth-rock cofferdam in the Datengxia Water Conservancy Project is one of the most important temporary buildings,and its design and construction reflect major key technologies of the Datengxia Water Conservancy Project.In order to ensure the safety of the second-phase deepwater cofferdam project,a special scientific research demonstration was conducted on the structure and seepage control safety of the second-phase deepwater cofferdam.In view of the difficulty in determining the density of the cofferdam formed by deepwater dumping and the feasibility of the anti-seepage system with a single anti-seepage wall connected to the geomembrane,experimental research was carried out through the centrifugal model test,so as to determine the underwater dumping density and angle of repose,the mechanical characteristics of cofferdam filler,the shear characteristics of the interface between filler and plastic concrete,and the characteristics of plastic concrete materials.The finite element analysis of stress deformation and the seepage stability analysis of the cofferdam were carried out,and the safety analysis evaluation and the section optimization design of the cofferdam were performed.The second-phase cofferdam has undergone two flood seasons of safe water retention operation,with a small total seepage flow,slight maximum settlement,and low horizontal displacement.The scientific research work has well supported the design requirements.http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2023.07.004second-phase earth-rock cofferdamunderwater dumpingplastic concretedeformation calculationDatengxia |
| spellingShingle | ZUO Yongzhen CHEN Liang XU Han LI Bo CHEN Jinsong Study on Structure and Seepage Control Safety of Second-Phase Cofferdam in Datengxia Water Conservancy Project Renmin Zhujiang second-phase earth-rock cofferdam underwater dumping plastic concrete deformation calculation Datengxia |
| title | Study on Structure and Seepage Control Safety of Second-Phase Cofferdam in Datengxia Water Conservancy Project |
| title_full | Study on Structure and Seepage Control Safety of Second-Phase Cofferdam in Datengxia Water Conservancy Project |
| title_fullStr | Study on Structure and Seepage Control Safety of Second-Phase Cofferdam in Datengxia Water Conservancy Project |
| title_full_unstemmed | Study on Structure and Seepage Control Safety of Second-Phase Cofferdam in Datengxia Water Conservancy Project |
| title_short | Study on Structure and Seepage Control Safety of Second-Phase Cofferdam in Datengxia Water Conservancy Project |
| title_sort | study on structure and seepage control safety of second phase cofferdam in datengxia water conservancy project |
| topic | second-phase earth-rock cofferdam underwater dumping plastic concrete deformation calculation Datengxia |
| url | http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2023.07.004 |
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