CAJ | 학술논문

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。
설계병제작료량개동척촌적함니화협층순층화반경암질변파，병진행료대형진동태시험，대함니화협층순층화반경암질변파적동력향응차이성진행료분석，연구결과표명：순층변파파체내부가속도방대계수정체상소우반경변파；재파체중상부（상대고도대우0.4），순층변파파면가속도방대계수대우반경변파，재파체하부（상대고도소우등우0.4），순층변파파면가속도방대계수여반경변파근사상등；순층변파화반경변파파면위이수수입지진동강도증대이대폭도증가，순층변파파면위이대우반경변파，차수착수입지진파폭치적증가，순층변파화반경변파파정위이지간적차치증대；반경변파교순층변파구유경고적지진은정성；순층변파파배형식주요표현위파체후연적수직장랍렬극、암층연니화협층적순층활동이급파정암괴붕락，이반경변파적파배형식주요표현위파면수평향화수직향렬극교착、니화협층제출이급파정피진쇄。
Two models with the same dimension, bedding and count-tilt rock slopes with siltized intercalation are designed, and large-scale shaking table tests are performed to analyze the seismic response differences between bedding and count-tilt rock slopes with siltized intercalation. The research results show that the acceleration amplification coefficient in the bedding rock slope is smaller than that in the count-tilt rock slope. The acceleration amplification coefficient on slope face of the bedding rock slope is larger than that of the count-tilt rock slope at the middle and upper parts of slope, where the elevation height is not less than 0.4, while the acceleration amplification coefficient on slope face of the bedding rock slope is close to that of the count-tilt rock slope at the lower part of slope, where the elevation height is less than 0.4. The displacements on slope faces of both the bedding and count-tilt rock slopes increase with the increase of the amplitude of input seismic waves, but the displacement on slope face of bedding rock slope is larger than that of count-tilt rock slope, and the difference value between increases with the amplitude of input seismic waves. The seismic stability of the bedding rock slope is stronger than that of the count-tilt rock slope; the failure forms of bedding rock slope mainly include vertical tension crack at the back edge, bedding sliding at mud layer and caving rocks at slope top, while those of the count-tilt mainly include intersect of horizontal and vertical cracks, squeezed siltized intercalation and shattered slope top.