南京下关软土深基坑施工引起的变形及控制研究

Study on Deformation Caused by Deep Foundation Pit Construction in Soft Soil of Nanjing Xiaguan District and the Control Method

摘要:

及时有效地预测基坑施工所引起的变形和对周边环境的影响，总结基坑变形控制技术、措施并验证其实施效果，对于软土地区深基坑的设计与施工具有重要指导意义。结合南京下关大唐南京发电厂生产科研及调度指挥综合楼基坑项目的工程实践,采用理论分析、数值模拟和施工监测等方法，对软土地区深基坑开挖引起的变形及变形控制方法进行了研究。

Abstract:

With the increase of the urban building density, the building groups in soft soil area are also increase, the foundation pit construction is restricted by the strict environments. Timely and effectively predicting the deformation caused by foundation pit construction and the impact on the surrounding environment, summarizing foundation pit deformation control technologies and the measures and verifying the implementation effects have important guiding significance for the design and construction of deep foundation pit in soft soil areas. Combined with the engineering practice of a foundation pit project in Nanjing, by means of theoretical analysis, numerical simulation and construction monitoring, the deformation caused by deep foundation pit excavation in soft soil area and the control methods are studied.