Analysis of Protection Measures for Buildings Adjacent to Foundation Pit

The shortage of urban land resources promotes the development of urban underground space, and a large number of foundation pit engineering are close to existing buildings, which brings great challenges to engineering construction. With the design conception of deep foundation pit has been changed from "strength control" to "deformation control", the protection of existing buildings has become a key problem in foundation pit engineering. To ensure the safety of buildings adjacent to deep foundation pit, the characteristics, sources, influencing factors and prediction methods of excavation-induced building deformation were summarized based on a large number of literatures, the major building protection measures at present were analyzed and sorted out based on the building deformation influence factors, and the adaptability of each measure was discussed, the comprehensive protection system of buildings adjacent to foundation pit was put forward combined with the foundation pit engineering investigation, building protection scheme design, foundation pit engineering construction and information construction monitoring, and provide reference and suggestions for related projects and researches.