斜坡地基上高填方边坡的变形及稳定性研究

以斜坡地基上填筑80 m级的机场高边坡为例，采用一次填筑与分层填筑的方法，对该高边坡的变形及稳定性进行数值模拟，并与现场监测的数据进行对比。结果表明:一次填筑与分层填筑时填筑体变形大小、形态的差异较大；分层填筑时最大沉降和最大水平位移分别为1.8，0.7 m；一次填筑时最大沉降和最大水平位移分别为3.2，0.8 m。建议斜坡地基上填筑高边坡的变形采用分层填筑，稳定性采用一次填筑或分层填筑。

Study on Deformation and Stability of High Slope Filled on Slope Foundation

Based on the 80 m airport high slope filled on the slope foundation, the numerical simulation for the deformation and stability of the high slope is carried out by one-off filling and layered filling and compared with the site monitored data. The results show that the deformation size and form are differed greatly. The maximum settlement and maximum horizontal displacement for layered filling are 1.8 m and 0.7 m respectively; the maximum settlement and maximum horizontal displacement for one-off filling are 3.2 m and 0.8 m respectively. It is suggested that the deformation of the high slope filled on the slope foundation is used by layered filling and the stability is adopted by one-off filling or layered filling.