传统的渗流分析主要考虑饱和区而忽略非饱和区内的渗流,本文基于饱和-非饱和渗流计算原理,采用有限元法考虑了非饱和区渗流的影响,并以各向同性均质坝和心墙土石坝为算例进行计算分析。算例表明,由于基质吸力产生的虹吸作用,使得浸润线上部的非饱和区内也存在着连续的水流,通过分析这种水流的特点,定性地得出其对土石坝渗流稳定性的影响。 The traditional seepage analysis mainly considers the saturated zone and neglects the seepage in the unsaturated zone. Based on the saturated-unsaturated seepage calculation principle, the influence of the seepage in the unsaturated zone is considered by the finite element method. The isotropic homogeneous dam and the heart Wall rockfill dam for the calculation and analysis of the case. The results show that the siphon caused by the suction of the matrix makes the continuous water flow in the unsaturated zone in the upper part of the infiltration line. By analyzing the characteristics of the water flow, the influence of the water flow on the seepage stability of the rockfill dam is qualitatively obtained.