| 离散单元法的饱和/非饱和渗流模型及其实验验证 |
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| 引用本文： | 周庆科,金峰,王恩志,徐艳杰. 离散单元法的饱和/非饱和渗流模型及其实验验证[J]. 水力发电学报, 2003, 0(3): 34-39 |
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| 作者姓名： | 周庆科 金峰 王恩志 徐艳杰 |
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| 作者单位： | 清华大学水利水电工程系,北京,100084 |
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| 摘 要： | 本文基于时步显式迭代的方法，提出了离散单元法的饱和／非饱和渗流模型，使裂隙岩体中的渗透效应直接参与离散单元法的显式平衡迭代，而无需求解大规模的渗透方程组。利用该模型对饱和／非饱和裂隙网络实验进行了数值模拟，其饱和区和非饱和区的渗透荷载分布与实测结果有很好的一致性。本文提出的模型具备应用于暴雨入渗条件下岩质边坡的变形和稳定分析的重要前景。
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| 关 键 词： | 渗流计算 饱和／非饱和裂隙渗流 离散单元法 域 接触 |
| 修稿时间： | 2002-06-10 |
Saturated/unsaturated seepage model embedded in discontinuous element method and its experimental verification |
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| Zhou Qingke,Jin Feng,Wang Enzhi,Xu Yanjie=. Saturated/unsaturated seepage model embedded in discontinuous element method and its experimental verification[J]. Journal of Hydroelectric Engineering, 2003, 0(3): 34-39 |
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| Authors: | Zhou Qingke Jin Feng Wang Enzhi Xu Yanjie= |
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| Abstract: | Based on the method of explicit iteration,a saturated/unsaturated se epage model embedded in the Discontinuous Element Method(DEM) is presented.This procedure makes the seepage effect in rock fractures directly take part in the expl icit equilibrium iteration of DEM instead of solving large equation sets.Compari son between the modeling results and the experimental solutions of the saturated /unsaturated seepage in rock fractures under rainfall shows that the presented m odel has excellent rationality.This presented model can simulate the load distri bution of seepage in unsaturated areas and possesses significant potential for a nalyzing deformation and stability of rock slopes under rainfall. |
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| Keywords: | seepage computation saturated/unsaturated seepag e Discontinuous Element Method(DEM) domain contact |
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