Analysis of the influence of pile foundation settlement of high-rise buildings on surrounding buildings

In order to explore the impact of pile sinking on surrounding buildings in existing high-rise buildings, in this study, the influence of pile foundation settlement on surrounding buildings of existing high-rise buildings is studied and analyzed by building models. Firstly, the theory of pile-soil interaction is introduced. The theoretical calculation of pile foundation settlement is simplified by existing theory and practical engineering calculation, and the settlement value of surrounding buildings is calculated. Then, the simulated experimental area model is established. Finally, the influence of pile foundation settlement on the surrounding buildings with and without raft in foundation is explored. The results show that under the condition of pile diameter and other conditions being the same, with the increase of pile length, the pile foundation settlement of existing high-rise buildings has less and less influence on the surrounding buildings. When the pile length increases to 22 m, the pile foundation settlement of existing high-rise buildings has little impact on the surrounding buildings; at the same time, under the same pile length, the settlement of pile foundation of existing high-rise buildings without raft has less influence on the surrounding buildings than that of pile foundation with raft. This study is of guiding significance to the construction of buildings around high-rise buildings in China.