Investigation of temperature rise after arch closure based on monitoring and numerical analysis: A case study of Baihetan arch dam
Baihetan Arch Dam is the world's first 300 m grade ultra-high arch dam using low-heat cement concrete. The hydration characteristics of low-heat cement concrete, especially the effect of temperature rise after arch closure on the temperature field and the working behaviors of the arch dam, are...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-07-01
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| Series: | Case Studies in Construction Materials |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214509523010264 |
| _version_ | 1797365556617150464 |
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| author | Yifan Wang Xuejuan Tang Yaosheng Tan Mengxia Zhou Jianshu Ouyang Xuecong Liu Chao Shang |
| author_facet | Yifan Wang Xuejuan Tang Yaosheng Tan Mengxia Zhou Jianshu Ouyang Xuecong Liu Chao Shang |
| author_sort | Yifan Wang |
| collection | DOAJ |
| description | Baihetan Arch Dam is the world's first 300 m grade ultra-high arch dam using low-heat cement concrete. The hydration characteristics of low-heat cement concrete, especially the effect of temperature rise after arch closure on the temperature field and the working behaviors of the arch dam, are not yet fully understood. This paper investigates the temperature field of the Baihetan arch dam based on the monitoring data and numerical analysis. The monitoring data indicates the temperature rise after closure is about 2.4–7.5 °C inside the dam body until May 2023. Although the annual temperature rise falls yearly, the temperature field has not reached a stable status. The numerical simulation demonstrates that for a super high arch dam like Baihetan, the majority source of the temperature rise after closure is the residual hydration of concrete. Meanwhile the heat backwards from the foundation and the external environment also contribute to the rise inside the dam body near the foundation and the body of small thickness to some extent. The good agreement between monitoring and calculated temperatures verifies that the residual hydration function and parameters adopted can reflect the hydration characteristics of the low-heat cement concrete, and the simulation scheme is practicable to be applied on similar constructions to predict the temperature field. |
| first_indexed | 2024-03-08T16:50:41Z |
| format | Article |
| id | doaj.art-0c009ba79c254e12ab8dc5d318f77d44 |
| institution | Directory Open Access Journal |
| issn | 2214-5095 |
| language | English |
| last_indexed | 2024-03-08T16:50:41Z |
| publishDate | 2024-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Construction Materials |
| spelling | doaj.art-0c009ba79c254e12ab8dc5d318f77d442024-01-05T04:24:52ZengElsevierCase Studies in Construction Materials2214-50952024-07-0120e02845Investigation of temperature rise after arch closure based on monitoring and numerical analysis: A case study of Baihetan arch damYifan Wang0Xuejuan Tang1Yaosheng Tan2Mengxia Zhou3Jianshu Ouyang4Xuecong Liu5Chao Shang6Institute of Science and Technology, China Three Gorges Corporation, Building 3, Chengda Centre, Beijing 101149, PR China; Corresponding author.Institute of Science and Technology, China Three Gorges Corporation, Building 3, Chengda Centre, Beijing 101149, PR ChinaInstitute of Science and Technology, China Three Gorges Corporation, Building 3, Chengda Centre, Beijing 101149, PR ChinaChina Three Gorges Construction Engineering Corporation, Three Gorges Building, Sichuan 610095, PR ChinaInstitute of Science and Technology, China Three Gorges Corporation, Building 3, Chengda Centre, Beijing 101149, PR ChinaInstitute of Science and Technology, China Three Gorges Corporation, Building 3, Chengda Centre, Beijing 101149, PR ChinaInstitute of Science and Technology, China Three Gorges Corporation, Building 3, Chengda Centre, Beijing 101149, PR ChinaBaihetan Arch Dam is the world's first 300 m grade ultra-high arch dam using low-heat cement concrete. The hydration characteristics of low-heat cement concrete, especially the effect of temperature rise after arch closure on the temperature field and the working behaviors of the arch dam, are not yet fully understood. This paper investigates the temperature field of the Baihetan arch dam based on the monitoring data and numerical analysis. The monitoring data indicates the temperature rise after closure is about 2.4–7.5 °C inside the dam body until May 2023. Although the annual temperature rise falls yearly, the temperature field has not reached a stable status. The numerical simulation demonstrates that for a super high arch dam like Baihetan, the majority source of the temperature rise after closure is the residual hydration of concrete. Meanwhile the heat backwards from the foundation and the external environment also contribute to the rise inside the dam body near the foundation and the body of small thickness to some extent. The good agreement between monitoring and calculated temperatures verifies that the residual hydration function and parameters adopted can reflect the hydration characteristics of the low-heat cement concrete, and the simulation scheme is practicable to be applied on similar constructions to predict the temperature field.http://www.sciencedirect.com/science/article/pii/S2214509523010264Baihetan arch damTemperature riseResidual hydration heatMonitoring analysisNumerical simulation |
| spellingShingle | Yifan Wang Xuejuan Tang Yaosheng Tan Mengxia Zhou Jianshu Ouyang Xuecong Liu Chao Shang Investigation of temperature rise after arch closure based on monitoring and numerical analysis: A case study of Baihetan arch dam Case Studies in Construction Materials Baihetan arch dam Temperature rise Residual hydration heat Monitoring analysis Numerical simulation |
| title | Investigation of temperature rise after arch closure based on monitoring and numerical analysis: A case study of Baihetan arch dam |
| title_full | Investigation of temperature rise after arch closure based on monitoring and numerical analysis: A case study of Baihetan arch dam |
| title_fullStr | Investigation of temperature rise after arch closure based on monitoring and numerical analysis: A case study of Baihetan arch dam |
| title_full_unstemmed | Investigation of temperature rise after arch closure based on monitoring and numerical analysis: A case study of Baihetan arch dam |
| title_short | Investigation of temperature rise after arch closure based on monitoring and numerical analysis: A case study of Baihetan arch dam |
| title_sort | investigation of temperature rise after arch closure based on monitoring and numerical analysis a case study of baihetan arch dam |
| topic | Baihetan arch dam Temperature rise Residual hydration heat Monitoring analysis Numerical simulation |
| url | http://www.sciencedirect.com/science/article/pii/S2214509523010264 |
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