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设计并制作了两个同尺寸的含泥化夹层顺层和反倾岩质边坡,并进行了大型振动台试验,对含泥化夹层顺层和反倾岩质边坡的动力响应差异性进行了分析,研究结果表明:顺层边坡坡体内部加速度放大系数整体上小于反倾边坡;在坡体中上部(相对高度大于0.4),顺层边坡坡面加速度放大系数大于反倾边坡,在坡体下部(相对高度小于等于0.4),顺层边坡坡面加速度放大系数与反倾边坡近似相等;顺层边坡和反倾边坡坡面位移随输入地震动强度增大而大幅度增加,顺层边坡坡面位移大于反倾边坡,且随着输入地震波幅值的增加,顺层边坡和反倾边坡坡顶位移之间的差值增大;反倾边坡较顺层边坡具有更高的地震稳定性;顺层边坡破坏形式主要表现为坡体后缘的垂直张拉裂隙、岩层沿泥化夹层的顺层滑动以及坡顶岩块崩落,而反倾边坡的破坏形式主要表现为坡面水平向和垂直向裂隙交错、泥化夹层挤出以及坡顶被震碎。
Two same-sized muddy interlayer and anti-dumping slope were designed and fabricated, and a large-scale shaking table test was carried out to study the difference of dynamic response between the muddy interlayer and the anti-dumping rock slope The results show that the amplifying coefficient of acceleration inside bedding slope is less than that of anti-dip slope as a whole; in the upper part of the slope (the relative height is greater than 0.4), the coefficient of acceleration of bedding slope is larger than that of anti-dumping Slope, at the lower part of the slope (the relative height is less than or equal to 0.4), the acceleration amplification factor of bedding slope is approximately equal to the anti-dip slope; the displacement of bedding slope and anti-dip slope increases with the increase of input seismic intensity Large and greatly increased, the bedding slope displacement is greater than the anti-dumping slope, and with the increase of the input seismic amplitude, the difference between the slope displacement of the bedding slope and the anti-dumping slope increases; The slope slope has higher seismic stability than the bedding slope. The failure modes of the bedding slope mainly include the vertical tension fracture of the slope, the bedding slide along the mudstone and the collapse of the slope roof , While the main form of anti-dip slope failure is horizontal and vertical slope Interlacing cracks, mud sandwich extrusion and the top of the hill was shattered.