软土深基坑逆作开挖差异隆沉控制研究

软土深基坑逆作开挖差异隆沉控制研究 English Version

详细信息

(1. Key Laboratory of Geotechnical and Underground Engineering, Ministry of Education, Department of Geotechnical Engineering, School of Civil Engineering, Tongji University, Shanghai 200092, China; 2. Architectural Design & Research Institute of Tongji University, Shanghai 200092, China)

摘要: 阐述了软土深基坑逆作法中差异隆沉产生机理和影响因素。结合工程实践，介绍了控制桩墙之间、立柱桩间差异隆沉的原理方法及设计应对措施。工程现场观测和实测数据表明，通过采用加大桩长、预估分析、节点强化设计、动态化设计、信息化施工等措施，可以有效地将差异隆沉控制在规范允许的范围内，并减小差异隆沉对逆作法支撑体系的影响，保证工程安全。
- 软土深基坑 /
- 逆作开挖 /
- 差异隆沉控制
Abstract: Based on the project practices of Shanghai Tower, the differential settlement control of deep foundation pits using top-down excavation method is introduced. As the data illustrate, the measures like estimating analysis, dynamic design, information-guided excavation are of great values in the differential displacement control, consequently they help ensure the safety of the project.
- deep foundation pit /
- top-down excavation method /
- differential displacement control

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