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本文研究分析了悬挂式防渗墙的贯入深度对强透水地基上心墙土坝渗流量的影响,应用有限单元法(采用三角形单元)对这一问题进行了大量的计算,找出了一些普遍性的规律,并得出一组曲线,可供工程单位参考。图1所示具有悬挂式防渗墙的心墙土坝,通过心墙部分的渗流尾数值很小,它与通过坝基的渗流量相比较,可以忽略不计。因此,影响整个渗流量的主要因素,可以认为是上下游水位差(H)、复盖层厚度(C)、防渗墙的贯入深度(悬挂深度d)和地基土壤的渗透系数(K基)。即
In this paper, the influence of the penetration depth of the hanging cut-off wall on seepage volume of the earth-wall dam on a strong pervious foundation is analyzed and analyzed. Finite element method (using triangular elements) Universal law, and come to a set of curves for engineering units for reference. The earth wall dam with hanging cut-off wall shown in Fig. 1 has a small seepage tail flow through the core wall and is negligible compared with the seepage through the dam foundation. Therefore, the main factors influencing the total seepage flow can be considered as the water level difference (H), cover thickness (C), cut-off depth (d) and permeability coefficient ). which is