非稳定渗流用截止负压法求解的研究 English Version
Research on the calculation of unsteady seepage by cut off negative pressure method
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摘要: 在稳定渗流截止负压法的基础上，通过进一步的研究，将其推广应用到三维非稳定渗流分析中，建立了与之相应的非稳定渗流求解方法。实际工程算题表明，该方法具有理论严谨、收敛速度快、计算精度高的特点，是稳定渗流和非稳定渗流分析中的有效方法。至于截止负压法对于非饱和渗流分析的适应性，尚有待于作更深入的研究，尤其是最大负压的取值问题。Abstract: A method to calculate unsteady seepage is established in this paper through studying cut off negative pressure method and extending it to 3 D unsteady seepage analysis. Some examples show that this method have advantages of strict in theory, quick in convergence and high in precision, and it is an effective method for the analysis of steady and unsteady seepage. The suitability of cut off negative pressure method to unsaturated seepage is remained to be further reseached, especially the selection of maximum negative pressure.
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Keywords:
- cut off negative pressure method /
- 3 D unsteady seepage
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