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在单裂隙黄土积水入渗特性实验研究的基础上,对实验中如何处理与利用边界条件及正确分析实验资料等问题进行了探讨。提出利用有限边界的湿润锋与无裂隙自由入渗的湿润锋二者变化特征相关分析法,得到了不同裂隙深度自由入渗的最大影响范围,为半无限边界单裂隙及双裂隙入渗模型的建立与参数的确定创造了条件。将实验土槽两侧边界视为相应裂隙间距中点的零通量面,依此不仅可在有限实验土槽长度情况下进行较多不同裂隙间距的实验方案,而且也为利用单裂隙实验资料分析裂隙间距对模型参数的影响成为可能。
Based on the experimental study on water infiltration characteristics of single-fractured loess, the issues of how to deal with and utilize the boundary conditions in the experiment and how to correctly analyze the experimental data are discussed. It is proposed that the maximum influence range of free infiltration with different fissure depth is obtained by the correlation analysis of the variation characteristics of wetting front with finite boundary and infiltration without fissure, which is the semi-infinite boundary single fissure and double fissure infiltration model Establishment and determination of parameters created the conditions. The boundary between the two sides of the test trench is considered as the zero-flux plane at the midpoint of the corresponding fracture spacing. Therefore, not only the experimental scheme with more different fracture spacings can be carried out with finite experimental trench length, It is possible to analyze the effect of crack spacing on the model parameters.