Study on Optimization of Anti-Seepage and Drainage System for High Concrete Sand-Gravel Dam

Zhong Qi Yan; Zhen Zhong Shen; Li Qun Xu

doi:10.4028/www.scientific.net/AMM.733.451

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 733Study on Optimization of Anti-Seepage and Drainage...

Study on Optimization of Anti-Seepage and Drainage System for High Concrete Sand-Gravel Dam

Abstract:

The design height of a concrete sand-gravel dam is up to 251 meters, which has strong unloading rock masses with great depth on the left bank. According to the topographic and hydro geologic conditions of the dam site, a three-dimensional finite element model for seepage calculation of the dam is established. Based on the equivalent continuum method, the effect of anti-seepage and drainage system within run-time with normal storage level is studied, meanwhile, the seepage elements are obtained, including the seepage of the groundwater, the discharge of the dam, the seepage gradient of the dam body and the impervious curtain and so on, thus the conclusion that the anti-seepage and drainage system is reasonable is verified. What’s more, the influence of the different length and depth of the anti-seepage curtain to the distribution of groundwater seepage as well as the effect of "L" type drainage in the dam body are analyzed in order that the suggestion of the optimization of anti-seepage and drainage system is put forward for the high concrete sand-gravel dam.

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Periodical:

Applied Mechanics and Materials (Volume 733)

Pages:

451-455

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.733.451

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Online since:

February 2015

Authors:

Zhong Qi Yan*, Zhen Zhong Shen, Li Qun Xu

Keywords:

Anti-Seepage Curtain, Concrete Sand-Gravel dam, Drainage, Seepage Gradient

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