Application of numerical simulation of composite pile foundation in settlement and reinforcement analysis of buildings

In recent years, more and more attention has been paid to the settlement of buildings, which has become a major problem in the field of foundation. Taking a project in southern China as an example, this paper analyzes the causes of settlement in detail, and then uses FLAC3D software to conduct numerical simulation on the settlement situation of the building and the reinforcement method to be selected, and obtains the corresponding settlement situation before and after reinforcement through calculation, providing scientific and reasonable suggestions for engineering construction.