论文部分内容阅读
该文对不透水地基上的均质土坝模型,在线性变化水位边界条件下的渗流流态和特性进行了实验研究。测定了非恒定渗流过程中坝体内浸润面的变化过程和压力水头的变化,通过对实验数据的分析,得出了非恒定渗流在水位变化过程中的物理力学特性。该实验对江河堤坝在洪水涨落期间的坝体内渗流场变化的研究有较高的借鉴价值,同时为渗流数学模型的可靠性和准确性提供了最直接的检验数据。
In this paper, we study the seepage flow regime and characteristics of a homogeneous earth dam model on impervious foundation under the condition of linearly varying water level. The changes of infiltration surface and pressure head in the dam during unsteady seepage are measured. The physical and mechanical properties of the unsteady seepage in the process of water level change are obtained by analyzing the experimental data. The experiment is of great reference value to the research on the change of seepage field in the dam body during flood fluctuation. At the same time, it provides the most direct test data for the reliability and accuracy of the seepage mathematical model.