| 非等时距GM(1,1)灰色模型在路基沉降预测中的应用 |
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| 引用本文： | 田晓丽,杜兴无,李天斌,任洋,何勇,徐升.非等时距GM(1,1)灰色模型在路基沉降预测中的应用[J].北方交通,2011(2):1-3. |
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| 作者姓名： | 田晓丽 杜兴无 李天斌 任洋 何勇 徐升 |
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| 作者单位： | 1. 成都理工大学地质灾害与地质环境保护国家重点实验室,成都,610059
2. 四川省交通运输厅交通勘察设计研究院,成都,610017 |
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| 摘 要： | 灰色理论现已普遍运用于路基沉降的预测中,以某高速公路为例,运用灰色理论建立路基沉降的非等时距GM(1,1)预测模型,并采用后验差法进行精度检验。以工程实测沉降数据为基础,对模型的预测结果进行了分析。结果表明,预测值与实测值之间误差较小,从而证实该方法的可行性。
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| 关 键 词： | 非等时距 灰色理论 后验差法 沉降 预测 |
Application of an Unequal Time-interval GM(1,1) Grey Model in the Settlement Prediction |
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| Authors: | TIAN Xiao-li others |
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| Institution: | TIAN Xiao-li and others |
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| Abstract: | Grey theory is now widely used in the settlement prediction.Based on an example of a highway,an unequal time-interval forecasting model of GM(1,1) is established according to the grey theory in the paper,and the precision of the model is verified by the posterior variance examination.The forecasting result is analyzed by using factual data in project.The results show that the error is small between forecasted value and observed value,thus confirming the feasibility of the method. |
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| Keywords: | Unequal time-interval Grey theory Posterior variance examination Settlement Prediction |
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