为了抵御洪水的袭击,我国已沿江河湖泊修建堤防长约25万km,这些堤防在保护人民群众生命财产安全方面发挥着重要作用。但由于诸多原因现有堤防质量普遍不高,每至汛期高水位时堤防险情频生,严重影响了堤防工程的正常运用。这些险情的发生,相当部分是由于堤基、堤身抗渗能力差而引起的。据统计,1998年长江干堤发生 In order to withstand the flood attacks, our country has built about 250,000 km embankments along rivers and lakes. These embankments play an important role in protecting the safety of people’s lives and property. However, due to many reasons, the quality of existing embankments is generally not high, and the frequent occurrence of embankments every high water level in flood season seriously affects the normal operation of embankments. The occurrence of these dangerous situations is due in large part to the poor infiltration resistance of dike basins and dikes. According to statistics, the dry embankment of the Yangtze River occurred in 1998