Research on joint separation scheme of Jingshan gravity dam based on finite element simulation calculation

Zhiqiang Wang; Wenbiao Liu

doi:10.1117/12.3026012

15 March 2024 Research on joint separation scheme of Jingshan gravity dam based on finite element simulation calculation

Zhiqiang Wang, Wenbiao Liu

Author Affiliations +

Proceedings Volume 13075, Second International Conference on Physics, Photonics, and Optical Engineering (ICPPOE 2023); 1307503 (2024) https://doi.org/10.1117/12.3026012
Event: Second International Conference on Physics, Photonics, and Optical Engineering (ICPPOE 2023), 2023, Kunming, China

Abstract

This paper mainly studies the joint separation scheme of Jingshan gravity dam, and calculates the dam body stress change from three schemes, namely, no transverse joint, transverse joint spacing of 60m and transverse joint spacing of 30m. The analysis results show that the dam body maximum tensile stress occurs on the upstream dam faces near the dam heel. The dam body maximum tensile stress is 2.16MPa, 1.97MPa and 1.62MPa respectively for three schemes, including no transverse joint, transverse joint spacing of 60m and transverse joint spacing of 30m. When the transverse joints are not divided, the actual tensile stress is greater than the C20 rockfill concrete tensile strength, and the dam concrete is more likely to crack. When the distance between transverse joints is 60m, only the tensile stress of individual points is greater than the concrete tensile strength, and the probability of dam concrete cracking is small; When the transverse joint spacing is 30m, the dam body actual tensile stress is less than the concrete tensile strength, and the probability of dam concrete cracking is small. It is suggested that the rockfill concrete gravity dam should be divided according to the transverse joint spacing of 30m when simple temperature control measures are taken.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

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Zhiqiang Wang and Wenbiao Liu "Research on joint separation scheme of Jingshan gravity dam based on finite element simulation calculation", Proc. SPIE 13075, Second International Conference on Physics, Photonics, and Optical Engineering (ICPPOE 2023), 1307503 (15 March 2024); https://doi.org/10.1117/12.3026012

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KEYWORDS

Shrinkage

Deformation

Humidity

Temperature metrology

Clouds

Diffusion

Design

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