魏  磊   黄宏伟
    (同济大学地下建筑与工程系  上海 200092)

[提要]  以弹性地基梁法为基础，考虑基坑的分步开挖过程，以上一工况的实测位移值反算坑底的力学参数，并以此为基础，对下一工况的连续墙体的侧向位移值进行了预报。实例表明，预测值与实测值吻合较好。
[关键词]  深基坑 增量法 侧向位移 反算 预报

Using the analysis of beams on elastic foundations, also considering the stages of excayation sequence, some key mechanic parameters concerrung with lateral displacements of the retaining wall are calculated through back-analysis based on the actual data by monitoring in site. Then a method that can predict the lateral displacements of the diaphragm wall in next case is proposed. Contrasting the prediction data with the monitoring data, we find that they are closed to each other fairly well.
Keywords: deep  excavation; lateral  displacement; back-analysis; prediction