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文章对路堤上游采用双层沥青玻璃丝布,并一律插入地面下2m左右防渗的作法进行了探讨,参考高路堤、水坝的稳定性设计理论和方法,引入地震力参数并推导出稳定性系数K的计算公式,运用VB程序计算上游边坡不浸水和浸水坝式路堤各滑出点的K值,和实际情况对比说明引起路堤滑坡或路堤裂缝的原因是沥青玻璃丝布防渗作用丧失。此研究成果对黄土地区坝式路堤设计及施工具有理论上的重要指导意义。
In this paper, the double embankment asphalt glass cloth was adopted in the upstream of the embankment, and all seepages were inserted into the ground about 2m to prevent seepage. With reference to the stability design theory and method of high embankments and dams, the seismic force parameters were introduced and the stability coefficient K The formula of VB is used to calculate the K value of each slide-out point of upstream slope and submerged dam embankment. Compared with the actual situation, the cause of embankment landslide or embankment cracks is caused by the seepage loss of asphalt glass cloth. The results of this study have theoretical significance for the design and construction of dam embankments in the loess area.