20世纪 5 0年代利用有限设计数据设计和施工的减压井系统 ,在设计洪水位下有效地防止了重大的砂沸和管涌险情的出现。根据对 1993年洪水期所收集的数据的分析结果 ,制定了减压井系统的维护和维修规划。对地下水渗流状态、与渗控措施设计及性能测试相关的参数进行了简要描述 ,并将设计值与1993年密西西比河 4 83km的堤段 (防洪标准为 5 0a一遇 ,其中有 72km堤段的渗流保护措施现在仍是减压井 )实际运行性能进行了比较。此外 ,还指出在抵御洪水方面 ,不仅加高堤防重要 ,而且减压井作为预防因堤基 (河流冲积区域内 )砂沸和 (或 )管涌而导致堤防破坏的一种渗控措施 ,其设计、施工和维护尤为重要。 The relief well system, designed and constructed with limited design data in the 1950s, effectively prevented the occurrence of significant sand-boiling and piping hazards at the design flood level. Based on the analysis of the data collected during the floods of 1993, a plan for the maintenance and repair of the relief well system was developed. The groundwater seepage status, parameters related to infiltration control design and performance testing are briefly described, and the design values ​​are compared with those of 4 83km Mississippi River in 1993 (flood control standard is 50a, of which 72km embankment Seepage protection measures are still relief wells) actual operating performance were compared. In addition, it is pointed out that it is not only important to increase the embankment against floods, but also the relief well as a seepage control measure to prevent embankment damage caused by sand boiling and / or piping due to the embankment (river alluvial area) Construction and maintenance are especially important.