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借鉴多孔介质非饱和渗流试验的研究成果 ,研制出一套可同时测定单裂隙毛细压力 -饱和度以及非饱和渗透系数 -毛细压力关系的试验装置。为检验试验装置的可信度和试验原理的正确性 ,并初步探讨单裂隙非饱和渗流的机理 ,特制作了一阶梯开度的裂隙概化模型 (本文称之为“S -H”裂隙模型 ) ,并在上述试验装置上进行了“S -H”裂隙模型的非饱和渗流试验 ,初步阐明了单裂隙非饱和渗流的一些基本水力特性 ,同时试验结果也表明本文试验装置和试验原理合理可靠
Based on the research results of unsaturated seepage test in porous media, a set of experimental devices that can simultaneously determine capillary pressure - saturation and unsaturated permeability coefficient - capillary pressure in single fracture are developed. In order to test the credibility of the experimental device and the correctness of the experimental principle, and to explore the mechanism of single-fractured unsaturated seepage, a fractured generalized model (called “S-H” fracture model ). The unsaturated seepage test of the “S-H” fracture model was carried out on the above test device, and some basic hydraulic characteristics of unsaturated seepage flow in single fracture were preliminarily clarified. At the same time, the test results also show that the experimental device and the test principle in this paper are reasonable and reliable