›› 2012, Vol. 33 ›› Issue (9): 2845-2849.

• Numerical Analysis • Previous Articles     Next Articles

Numerical analysis of infiltration of atomized rain into plunge pool slope in Wudongde hydropower project

WANG Jin-long1, 2, ZHANG Jia-fa1, 2, LI Shao-long1, 2, CUI Hao-dong1, 2   

  1. 1. Key Laboratory of Geotechnical Mechanics and Engineering of Ministry of Water Resources, Yangtze River Scientific Research Institute, Wuhan 430010, China; 2. National Research Center for Dam Safety Technology, Yangtze River Scientific Research Institute, Wuhan 430010, China
  • Received:2012-05-07 Online:2012-09-11 Published:2012-09-12

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Abstract: Infiltration of atomized rain by flood releasing is an important factor to the stability of slope by plunge pool for high dam. In order to analyze the effect of atomized rain infiltration in Wudongde hydropower station, the two-dimensional unsaturated and unsteady seepage field is modeled for a typical profile of plunge pool slope, and is simulated with the FEM. The range of the saturated zone and the pressure head of the groundwater in the slope during the infiltration is analyzed under different slope protection conditions. It is shown that for the slope formation with high permeable layer overlying relatively low permeable layer, the pressure head in the resistivity water layer will raise gradually with the increase of infiltration recharge. Application of impermeable material to the slope surface as protection treament can largely decrease the infiltration of atomized rain into the slope, thus the influence of atomized rain on the seepage field of slope is significantly reduced.

Key words: atomized rain infiltration, unsaturated seepage, plunge pool slope

CLC Number: 

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