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为了研究斜坡含软弱夹层地基路堤边坡的稳定性及破坏机制,采用离心模型试验和数值分析方法进行了研究。研究表明:斜坡均质地基路堤边坡仍是呈现整体圆弧滑动破坏;而对于含软弱夹层地基路基边坡来说,由于软弱夹层的影响其稳定性有了明显的降低,并有利于张拉裂缝的产生和发展,路堤边坡不再是整体圆弧滑动破坏,而是部分土体沿着软弱夹层发生滑动破坏。
In order to study the stability and failure mechanism of embankment slopes on slopes with weak intercalations, a centrifugal model test and numerical analysis were conducted. The research shows that the embankment slopes with homogeneous slopes still show the whole circular sliding failure. For the subgrade embankment with weak interbed, the stability is obviously reduced due to the influence of weak intercalations, The emergence and development of cracks, the embankment slope is no longer the overall arc sliding damage, but part of the soil slip along the weak interlayer slip damage.