Comparative Analysis of Different Combined Retaining Measures for Deep Foundation Pit of High-Rise Buildings

With the rapid economic development, deep foundation pit engineering of high-rise buildings is becoming more and more popular in urban areas of China. Taking the deep foundation pit engineering of a high-rise building as an example, this paper establishes ABAQUS finite element models to compare two composite retaining measures, namely the segmented combination of pile-anchor and soil nail wall, i.e. applying different measures to different places, and the staged combination of pile-anchor and soil nail wall, i.e. applying different measures to the upper and lower parts at the same place, and to analyze the horizontal displacement and vertical displacement of slope crest. The results show that: The staged combination does a better job than the segmented combination in controlling slope crest horizontal/vertical displacement, and the deep soil displacement.