Study on the Uplift Force of Plunge Pool Slab

Article Preview

Abstract:

The impact of the flood discharge water flow from a high dam is rather great on the slab of a plunge pool, and may cause damages to the plunge pool and consequently endangers the dam body safety. Therefore, a reverse arch slab model was established on the base of a study on and a simulation of the rational scale of gaps between the plates of the plunge pool slab. The model was an arch ring containing 7 slabs. The uplift force time history of each slab was measured, and the uplift force power spectrum and probability density were analyzed. The test result shows that the uplift energy mainly centers in 0-15Hz frequency bandwidth, and mostly within 1Hz. It belongs to a low frequency and big amplitude vibration.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

1897-1900

Citation:

Online since:

July 2014

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2014 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

[1] G. Rehbinder, Slot Cutting in Rock with a High Speed A Water Jet, Int. J. Rock Mech. Min. Sic., Vol. 14, 1977, PP 229-234.

DOI: 10.1016/0148-9062(77)90734-3

Google Scholar

[2] Zhao Yaonan, Liang Xingrong. Investigaion on fluctuating pressure transmission along joints. Journal of Tianjin University, March 1988, P55-65. In Chinese.

Google Scholar

[3] V. Fiorotto and A. Rinaldo. Turbulent pressure fluctuations under hydraulic jumps, J. Hydro. Res., IAHR, VOL. 30, NO. 4, (1992).

DOI: 10.1080/00221689209498897

Google Scholar

[4] Liu Peiqing, Dong Junrui, Yu Changzhao, Mechanism of the fluctuating Pressure transmission in cracks of bed rock. Journal of Hydraulic Engineering, December 1994, 31~36. In Chinese.

Google Scholar

[5] Liu Peiqing, Li Zhongyi, Dong Junrui, On the mechanism of the fluctuating Pressure transmission in cracks of bed rock. Journal of Hydraulic Engineering[J], April 1996, 27~32. In Chinese.

Google Scholar

[6] Cui Guangtao, et al. Hydro-elastic modal experimental study on the Ertan arch dam vibration by discharge flow. Journal of Tianjin University[J]. January 1991. In Chinese.

Google Scholar

[7] Yang Min, Peng Xinmin et al. Study on experiment simulation of slabs in Plunge Pool. March 2002. P41. In Chinese.

Google Scholar