半圆内支撑在软土地区深基坑拆撑过程中的应用

Application of semicircle inner-bracing in demolition process of excavations in soft soils

摘要: 介绍了软土地区深基坑在拆撑过程中使用半圆环形内支撑的思路,以天津某项目为案例,运用这种思路进行设计计算,通过工程实施过程中的监测资料及实施效果来验证该思路的可行性。事实证明：该方法能确保基坑开挖及地下结构的顺利施工,并节省工期,有较好的工程效益,能为类似工程提供参考。

Abstract: The idea of semicircle inner-bracing during the demolition process of excavations in soft soil is introduced. Taking a deep excavation in Tianjin for an example, design and calculation based on this idea are performed. The feasibility of this idea is confirmed through the monitoring data and the calculated results. Actually, the proposed method can ensure the construction of the excavation, save project time, and achieve good project efficiency. It may provide a reference for similar projects.