邻近超大软土深基坑的敏感建筑保护研究  

Study on Protection of Sensitive Buildings Adjacent to Supersized Soft Soil Deep Foundation Pits

作　　者：申明亮 SHEN Mingliang(Shanghai Construction Group Co.,Ltd.,Shanghai 200080,China)

机构地区：[1]上海建工集团股份有限公司,上海200080

出　　处：《建筑施工》2022年第9期2037-2039,共3页Building Construction

基　　金：上海市科学技术委员会科研项目课题(16DZ1200200)。

摘　　要：以上海某复杂超大尺寸软土深基坑为例,对邻近基坑的浅基础历史建筑物保护方法进行总结,并通过实测数据对基坑开挖过程中的建筑物沉降进行分析。实践表明,仅采用常规被动保护措施,无法满足敏感建筑物严格的变形控制要求,而需要考虑主动和被动相结合的保护方案,才能将建筑物变形控制在限值以内。主被动相结合的保护方案取得了良好的效果,可为类似复杂深基坑工程提供参考。Taking a complex supersized soft soil deep foundation pit in Shanghai as an example,we summarize the protection methods for historical buildings with shallow foundations adjacent to pits,and analyze the building settlement during excavation of the pit through actual measurement data.Practice shows that the conventional passive protection measures cannot meet the strict deformation control requirements for sensitive buildings,but need to consider a combination of active and passive protection scheme to control the building deformation within the limit value.The combined active and passive protection scheme has achieved good results and can provide reference for similar complex deep foundation pit projects.

关 键 词：超大深基坑 分区施工 历史建筑 被动保护 主动保护 

分 类 号：TU753[建筑科学—建筑技术科学]