软土深基坑粘弹性动态增量反演分析与变形预测

Viscoelastic dynamic incremental back analysis in soft soil pit foundation and deformation forecasting

针对上海地区软土深基坑施工具有明显的流变特性，采用粘弹性动态增量反演分析的方法，并结合黄浦江观光行人隧道浦东竖井基坑工程对地下连续墙变形进行预测。结果表明，预报值与实测值吻合得较好，为软土深基坑施工墙体变形的动态预测提供了一种新的方法。

The viscoelastic dynamic incremental back analysis is used for the Shanghai's soft soil deep pit foundation with large viscous deformation. Combined with the Pudong's deep pit foundation of the Huangpu River tourist road tunnel, the deformation of D/wall is predicted. The results show that the calculated values accord with actual values very well, thus providing a new method for accurate and timely prediction deep foundation pit walls in soft soils.