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

WANG Jin-long; ZHANG Jia-fa; LI Shao-long; CUI Hao-dong

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

更新时间：2026-06-25

- Numerical analysis of infiltration of atomized rain into plunge pool slope in Wudongde hydropower project
- Vol. 33, Issue 9, (2012)
- 作者机构：
  
  1. 长江科学院水利部岩土力学与工程重点实验室,武汉,430010
  2. 长江科学院国家大坝安全工程技术研究中心,武汉,430010
- 作者简介：
- 基金信息：
- DOI：
  CLC： TV223
- Online First：12 September 2012，
  
  Published：2012
- 稿件说明：
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WANG Jin-long, ZHANG Jia-fa, LI Shao-long, et al. Numerical analysis of infiltration of atomized rain into plunge pool slope in Wudongde hydropower project[J]. 2012, 33(9).
DOI：

WANG Jin-long, ZHANG Jia-fa, LI Shao-long, et al. Numerical analysis of infiltration of atomized rain into plunge pool slope in Wudongde hydropower project[J]. 2012, 33(9). DOI：

摘要

高坝泄洪雾化雨入渗是影响其水垫塘边坡稳定的关键因素之一。为分析乌东德水电站水垫塘边坡受泄洪雾化雨影响程度，选取水垫塘边坡典型断面，建立二维非饱和、非稳定渗流计算模型，采用有限元法模拟泄洪雾化雨入渗过程，分析雾化雨入渗条件下坡体饱和区范围及压力水头的变化规律，同时对比研究坡面防护措施的效果。结果表明，对于坡体内部渗透性上强、下弱的部位，随着入渗补给量的持续增加，在阻水部位压力水头会逐渐升高；当坡面采取弱透水材料防护后，可显著减少坡面雾雨入渗量，从而显著降低雾化雨入渗对坡体渗流场的影响

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.

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