Innovative Design and Construction of a High RCC Gravity Dam in High Seismic Intensity Region
Publication: Practice Periodical on Structural Design and Construction
Volume 16, Issue 2
Abstract
A few innovative designs and construction measures are introduced to build a roller-compacted concrete (RCC) gravity dam with a height of 160 m (524.96 ft), whereas the design peak ground acceleration of the dam site is . The grouting construction joints are designed between the plant and dam parts to enhance the earthquake-resistant ability of the dam. To improve the lateral stability of the dam, the depth of the construction joint is only of the dam thickness in each roller-compacted layer, and the joints are filled with nonwoven fabrics. This treatment causes the construction joints to be weakly connected induced joints, which are not only good for temperature stress release but also enhance the integrity of the dam. Steel bars are embedded in high-tensile stress zones to ensure dam safety. Some other aspects, such as layout of the stilling basin, spillway chute design, high-pressure consolidation grouting of dam foundation, the reinforcement of slumping mass on the left bank, and other engineering measures, are also described in this paper.
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Acknowledgments
This work was supported by the funds from National Basic Research Program of China (973 Program, Grant No. UNSPECIFIED2007CB714104). National Natural Science Foundation of China (Grant No. NNSFC50779011) and the open research fund is supported by China Institute of Water Resources and Hydropower Research (Grant No. UNSPECIFIED2008538613).
References
Hong, Y. W. (2004). Feasibility study report of Jinanqiao hydropower station, Kunming, China.
Hong, Y. W. (2006). “Design of RCC gravity dam of Jinanqiao hydropower station.” Water Power, 32(11), 54–56.
Hydrochina Kunming Engineering Corporation (HKEC). (2008). Special report for seismic resistance design of Jinanqiao hydropower station, Kunming, China.
Yuan, J. W., Du, C. B., and Hong, Y. W. (2008). “Static and dynamic anti-sliding stability of the powerhouse section of a gravity dam under combined effects of powerhouse and dam.” J. Hohai Univ. (Sci. Tech.), 36(2), 29–33.
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Information
Published In
Practice Periodical on Structural Design and Construction
Volume 16 • Issue 2 • May 2011
Pages: 67 - 72
Copyright
© 2011 American Society of Civil Engineers.
History
Received: Dec 11, 2009
Accepted: Oct 5, 2010
Published online: Oct 7, 2010
Published in print: May 1, 2011
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