散浸险情说明江水上涨,堤身泡水,水从堤内坡或内坡脚附近渗出,叫做散浸,一般又叫‘堤出汗’(图1)。当高水位持续时间过长,散浸范围就将沿堤内坡上升、扩大,如不及时处理,就会发生内脱坡、管漏等险情。原因分析土堤挡水后,渗水经过堤身向堤内坡方面渗透,是自然规律。但由于以下一些原因:1、堤身单薄,内坡过陡;2、堤身土质沙重,外 Flooding risk description The river water up, levee body water, water leaking from the embankment slope or slope near the foot, called the dipping, commonly known as ’dike sweating’ (Figure 1). When the duration of high water level is too long, the range of flood dipping will rise and expand along the embankment slope. If not treated in time, internal danger such as internal detachment and pipe leakage may occur. Analysis of earthworks embankment water seepage through the embankment dike slope infiltration, is the natural law. However, due to the following reasons: 1, levee body is thin, steep slope; 2,