| 改进的灰色模型在基础沉降预测中的应用 |
| |
| 引用本文： | 喻娟,郭翠翠,周成龙.改进的灰色模型在基础沉降预测中的应用[J].教育技术导刊,2007(7). |
| |
| 作者姓名： | 喻娟 郭翠翠 周成龙 |
| |
| 作者单位： | 武汉理工大学 计算机科学与技术学院，武汉理工大学 计算机科学与技术学院，武汉理工大学 计算机科学与技术学院 湖北 武汉430070，湖北 武汉430070，湖北 武汉430070 |
| |
| 基金项目： | 湖北省建设厅科技项目(K200549) |
| |
| 摘 要： | 一般的灰色残差修正GM(1,1)模型只是单纯利用差分来代替微分,而且用原始沉降数据第一点的值作为时间响应函数的初始值,导致了一定的误差。提出一种多项式逼近法改进后的残差修正GM(1,1)模型,该模型利用多项式在离散观测点上的导数代替常用的差分,同时添加一个初值参数C_0做出调整。实验验证,改进模型具有较好的准确性和工程应用价值。
|
| 关 键 词： | 灰色残差修正GM(1 1)模型 多项式逼近 沉降预测 |
Improved Grey Model for Predicting Foundation Settlement |
| |
| YU Juan GUO Cui-cui ZHOU Cheng-long.Improved Grey Model for Predicting Foundation Settlement[J].Introduction of Educational Technology,2007(7). |
| |
| Authors: | YU Juan GUO Cui-cui ZHOU Cheng-long |
| |
| Abstract: | This paper proposes a new grey residual-correction model improved by polynomial approximation.In residual- correction GM(1,1)model,the difference for differential is used with the first value of the data sequence as an initial value of the response-time function,which leads to some prediction errors.The improved model applies differential coefficient on discrete observation spots instead of difference in common method and imports an initial value C_(0-) The experiment result shows the improved model has better accuracy and the value of engineering application for foundation settlement prediction. |
| |
| Keywords: | grey residual-correction GM(1 1)model polynomial approximation settlement prediction |
| 本文献已被 CNKI 等数据库收录！ |
