深基坑開挖過程中地下連續(xù)墻側向位移預報分析*
魏 磊 黃宏偉
- 摘 要
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魏 磊 黃宏偉
(同濟大學地下建筑與工程系 上海 200092)[提要] 以彈性地基梁法為基礎，考慮基坑的分步開挖過程，以上一工況的實測位移值反算坑底的力學參數，并以此為基礎，對下一工況的連續(xù)墻體的側向位移值進行了預報。實例表明，預測值與實測值吻合較好。
[關鍵詞] 深基坑 增量法 側向位移 反算 預報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
