摘要
利用饱和-非饱和土渗流理论,对淤背加固后黄河大堤在洪水条件下不同时刻的渗流等势线、流速矢量、浸润线等进行计算,得出了黄河大堤不同时刻浸润线位置、流速矢量、总水头以及压力水头的分布情况。渗流分析结果表明:淤背加固起到了明显降低浸润线的作用,降低了渗流对黄河大堤土体的破坏力,可有效防止堤坝发生管涌、流土等渗透破坏,同时起到了加固堤身的作用。
The paper calculates the seepage equipotential line,velocity vector and line of saturation of the Yellow River embankments under the conditions of flood and different times after embankment strengthening through warping by using the seepage theory of saturated–unsaturated soil and obtains the location of line of saturation,velocity vector,total water head and the distribution of hydraulic head of the embankments at different times.The outcomes of the seepage analysis show that the embankment strengthening through warping has greatly reduced the line of saturation and the destructive power of the seepage to the dyke.It can effectively prevent the damage of piping and soil loss in addition to the dyke consolidation.
出处
《人民黄河》
CAS
北大核心
2011年第5期6-7,149,共2页
Yellow River
关键词
渗流分析
饱和-非饱和土
淤背加固
黄河大堤
seepage analysis
saturated–unsaturated soil
strengthening through warping
the Yellow River embankments
