软土深基坑墙体变形的反演分析与变形预报

An Inverse Analysis and Forecast of Deep Foundation Pit Deformation on Soft Ground

本文针对上海、宁波软土深基坑开挖具有明显的流变特性 ,利用Maxwell模型预报墙体变形 ,并结合上海黄浦江行人隧道浦东竖井基坑工程对墙体变形进行了预报 ,实践证明 ,预报值与实测值吻合得很好 。

Maxwell, a rheological model, is used to simulate the rheological behavior of deep foundation pits in the soft ground of Shanghai and Ningbo. By forecasting the wall deformation of the shaft pit in the pedestrian tunnel works across the Huangpu River in Shanghai, it is proved that the forecast value is well consistent with that from actual measurement. Thus a new method is provide for timely forecasting thewall deformation in excavation of deep foundation pits on soft ground.