Measures to Control Deformation of Supporting Structures and Settlement of Adjacent Buildings

For construction of deep foundations in cities where the buildings are dense,deformation of supporting structure affects greatly the safety of adjacent buildings.During the excavation of foundation pit for Beizhan Station of Tianjin Subway Line 3,measures were taken to control distortion of supporting structures and settlement of adjacent buildings.These measures included monitoring,dewatering,controlled cutting,bracing and supporting,water-stopping and foundation soil reinforcement,etc.The results show that the deep foundation pit for this project was made a no-leakage foundation pit,ensuring the safety of the foundation pit and its surrounding buildings.