论文部分内容阅读
通过对黄河下游堤坝工程的长期观测,发现发生严重渗透变形的坝基,主要是在地表是透水性很小的粘性土,而其下方为透水砂层的河段。因此,弱透水表层下砂层压力水头的计算,对于了解堤坝工程的渗透稳定以及今后的加固设计有着重要意义。
Through the long-term observation of the embankment project in the lower Yellow River, it is found that the dam foundation with serious seepage deformation is mainly composed of cohesive soil with little water permeability on the ground surface and the river section below which is permeable sand layer. Therefore, the calculation of the pressure head of sand layer under the impervious surface is of great significance for understanding the seepage stability of dam works and the future reinforcement design.