| 加权多点灰色模型在高边坡变形预测中的应用 |
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| 引用本文： | 何习平,华锡生,何秀凤.加权多点灰色模型在高边坡变形预测中的应用[J].岩土力学,2007,28(6):1187-1191. |
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| 作者姓名： | 何习平 华锡生 何秀凤 |
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| 作者单位： | 1. 河海大学,土木工程学院,南京,210098;南昌工程学院,水利系,南昌,330029
2. 河海大学,土木工程学院,南京,210098 |
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| 基金项目： | 国家自然科学基金;国家自然科学基金 |
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| 摘 要： | 边坡变形是一个复杂的系统过程，单点模型GM（1，1）不能考虑各变形监测点间的相关性。针对单点模型背景值取值方法的不足，提出一种动态定权方法，建立加权多点灰色预测模型（即PWM—GM（1，1）模型）。利用Matlab语言编写了程序，实例计算表明，WM—GM（1，1）模型预测精度高。
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| 关 键 词： | 高边坡 变形监测 背景值 动态权值 WM-GM(1 1)预测模型 |
| 文章编号： | 1000-7598-（2007）06-1187-05 |
| 收稿时间： | 2006-04-02 |
| 修稿时间： | 2006-04-02 |
Weighted multi-point grey model and its application to high rock slope deformation forecast |
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| HE Xi-ping,HUA Xi-sheng,HE Xiu-feng.Weighted multi-point grey model and its application to high rock slope deformation forecast[J].Rock and Soil Mechanics,2007,28(6):1187-1191. |
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| Authors: | HE Xi-ping HUA Xi-sheng HE Xiu-feng |
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| Institution: | 1.College of Civil Engineering, Hohai University, Nanjing 210098, China; 2. Department of Hydraulic Engineering, Nanchang Institute of Technology, Nanchang 330029, China |
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| Abstract: | Slope deformation is a complex systematic process. Single point model named GM(1,1) can’t consider correlation of the deformation between the discrete monitoring points. The method of determining dynamic weight is presented; and the new weighted multi-point grey model named WM-GM(1,1) forecasting the slope deformation is established by analyzing the shortcoming of GM(1,1) which can’t acquire the appropriate background value. A case study based on the Matlab program shows that the forecast result of WM-GM(1,1) is more precise than that of the GM(1.1). |
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| Keywords: | high rock slope deformation monitoring background value dynamic weight WM-GM |
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