| 单桩竖向抗拔极限承载力的灰色预测方法 |
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| 引用本文： | 李育枢,高广运,凌辉. 单桩竖向抗拔极限承载力的灰色预测方法[J]. 地下空间与工程学报, 2005, 1(2): 209-213 |
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| 作者姓名： | 李育枢 高广运 凌辉 |
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| 作者单位： | 同济大学,地下建筑与工程系,上海,200092;同济大学,地下建筑与工程系,上海,200092;同济大学,地下建筑与工程系,上海,200092 |
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| 摘 要： | 如何利用现场抗拔静载试验中未达到破坏的工程试桩数据来确定其抗拔极限承载力是一个重要的工程问题。运用灰色预测理论,建立了预测单桩竖向抗拔极限承载力的非等步长GM( 1 ,1 )模型和等维灰数递补动态预测GM( 1 ,1 )模型。工程实例表明,两者均有相当的准确性和可靠性,而且后者的预测结果更接近实测值。
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| 关 键 词： | 抗拔桩 极限承载力 灰色预测 非等步长GM(1,1)模型 等维灰数递补动态预测GM(1 1)模型 |
| 文章编号： | 1673-0836(2005)02-0209-05 |
| 修稿时间： | 2004-11-09 |
Gray Prediction Method for Uplift Ultimate Bearing Capacity of Single Pile |
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| LI Yu-shu,GAO Guang-yun,LING Hui. Gray Prediction Method for Uplift Ultimate Bearing Capacity of Single Pile[J]. Chinese Journal of Underground Space and Engineering, 2005, 1(2): 209-213 |
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| Authors: | LI Yu-shu GAO Guang-yun LING Hui |
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| Abstract: | It is very important for engineer to determine the uplift ultimate bearing capacity by using the data of non-destructive test of pile. According to gray prediction theory, the non-isometric step GM (1,1) model and the dynamic prediction model with the same dimension of gray numbers are built to predict the uplift ultimate bearing capacity. A case study verifies that both have good precisiou and reliability, and the latter's result is much closer to the in situ data. |
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| Keywords: | uplift pile ultimate bearing capacity gray prediction non-isometric step GM (1 1) model dynamic prediction model with the same dimension of gray numbers |
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