在临近地铁基坑工程的施工过程中,发现基坑围护体系中的围护桩出现过严重的露筋和缩颈等质量缺陷。本文通过对缺陷围护桩的加固、合理的施工段划分、施工工序的调整、降水措施管理和监测措施实施,使基坑围护体系和地铁管线的变形控制在允许范围以内,确保了基坑工程和地铁管线的安全。 In the process of construction near the subway foundation pit, it was found that there were serious quality defects such as dew reinforcement and constriction on the retaining pile in the foundation pit retaining system. In this paper, through the reinforcement of defective retaining pile, the rational division of the construction section, the adjustment of the construction process, the management of precipitation measures and the implementation of monitoring measures, the deformation of the foundation pit protection system and the subway pipeline is controlled within the allowable range to ensure the foundation pit Engineering and subway pipeline safety.