基于GM(1,1)模型的深基坑开挖变形预测分析
首发时间:2008-05-09
摘要:本文通过对GM(1,1)预测模型在典型深基坑工程中的应用分析,得出对于深基坑变形的拟合、预测而言,小样本精度较好,样本过大精度较差;同时提出了对未来数据序列的预测在短时间内精度较好,并尝试将该预测模型应用于对深基坑监测点的位移轨迹及临界变形的时间进行预测,结果表明该模型预测效果好,简便且实用。
关键词: GM(1,1)模型 深基坑开挖 变形预测 精度分析
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Study on The Deformation Predict Analysis of Deep Foundation Excavating Based on The GM(1,1) Model
Abstract:This paper takes the GM(1,1) predict model applied in the typical deep foundation pit engineering as the cutting spot. Obtained that, speaking of the deformation fitting and predicting of deep foundation excavating, few sample numbers precision is good, but the sample oversized precision is bad, and proposed that the precision in a short time is good. Then, attempt to takes the GM(1,1) model applied in the displacement path and the critical deformation time predict of test points. The results show that this model predict precision is good, simple and practical.
Keywords: GM(1,1) model, Deep foundation excavating, Deformation predicting, Analysis of precision
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No.2128223089412103****
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基于GM(1,1)模型的深基坑开挖变形预测分析
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