摘要
本文根据饱和一非饱和瞬态渗流数学模型,采用高斯点法分析瞬态渗流问题,从而考虑了单元内非饱和参数不同的影响,解决了饱和区边界条件有突变时引起的计算不稳定问题。介绍了相应的TSAP计算程序的研制,并用它对黄河大堤部分堤段进行了二维渗流动态分析。计算结果与观测资料所反映的渗流动态基本一致.表明了TSAP程序及其所依据理论的有效性、实用性和可靠性。
According to the mathematical model of saturated-unsaturated instantaneous seepage, the paper has considered the effects of different unsaturated parameters within an element and solved the problem of unstable calculation caused by sudden changes of boundary condition in a saturated zone by using the method of Gauss point. The paper has also introduced the relative study of TSAP programme and made two dimentional seepage analysis for some parts of the Yellow River embankments by using the programme. The result of calculation is basically the same as the seepage status reflected by the observed data, showing the effectivity, practicality and reliability of TSAP programme and its adopted theory.
出处
《人民黄河》
CAS
北大核心
1992年第7期48-51,共4页
Yellow River
关键词
黄河
瞬态渗流
数学模型
有限元
saturated-unsaturated model, instantaneous seepage, method of Gauss point, finite element method, TSAP programme.
