Abstract
Based on the high fill engineering in loess gully of Yan'an, the centrifuge model test and finite element stress analysis were carried out to study the deformation characteristics and stability of high fill slope in loess with the change of water level. According to the preliminary results, the consolidation deformation during construction is dominant in the whole process. Ensure the construction quality and extend the construction time appropriately will be beneficial to avoid large settlement deformation after construction. With the rise of groundwater level, the slope is still stable. However, ground settlement deformation of slope has greatly increased. This probably leads to the harm. Meanwhile, the safety of slope is also obviously reduced. So the measures that constructing the underground drainage and monitoring systems play an important role in the high fill engineering in the gully area.
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