| 灰色幂模型在基坑变形监测中的应用 |
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| 引用本文： | 张进,彭磊,尹亚东. 灰色幂模型在基坑变形监测中的应用[J]. 北京测绘, 2021, 35(1): 100-104. DOI: 10.19580/j.cnki.1007-3000.2021.01.021 |
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| 作者姓名： | 张进 彭磊 尹亚东 |
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| 作者单位： | 中国电建集团河北省电力勘测设计研究院有限公司,河北石家庄050015;中国电建集团河北省电力勘测设计研究院有限公司,河北石家庄050015;中国电建集团河北省电力勘测设计研究院有限公司,河北石家庄050015 |
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| 摘 要： | 灰色幂模型又称非线性灰色伯努利模型(NGBM(1,1)),是灰色GM(1,1)模型的一种改进模型,具有非线性特征,在拟合和预测非线性特征数据方面具有优势.NGBM(1,1)模型相比于GM(1,1)模型具有更高的预测精度和更广的适用范围,它在经济、农业、气象等方面已有较广应用,但是在变形监测领域的应用还比较少.本文在已有...
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| 关 键 词： | 基坑监测 预报 灰色模型 灰色幂模型 精度 |
Application of Nonlinear Grey Bernoulli Model in Deformation Monitoring |
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| ZHANG Jin,PENG Lei,YIN Yadong. Application of Nonlinear Grey Bernoulli Model in Deformation Monitoring[J]. Beijing Surveying and Mapping, 2021, 35(1): 100-104. DOI: 10.19580/j.cnki.1007-3000.2021.01.021 |
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| Authors: | ZHANG Jin PENG Lei YIN Yadong |
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| Affiliation: | (Power China Hebei Electric Power Design&Research Institute Company Limited,Shijiazhuang Hebei 050015,China) |
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| Abstract: | The gray power model is an improved model of the gray GM(1,1)model,which has nonlinear characteristics.Compared with the GM(1,1)model,the NGBM(1,1)model has higher prediction accuracy and a wider range of application.It has been applied in economics,agriculture,and meteorology except deformation monitoring.Basing on the classical gray system theory,this paper applied the NGBM(1,1)model to deformation monitoring.Firstly,it obtained the background value by accumulating the original deformation monitoring data.Secondly,the optimal power index value and ash action value were obtained according to the original data.Thirdly,the solved parameters were applied to model the existing data and predict the slope Monitoring data.The experimental results shown that the prediction accuracy of the NGBM(1,1)model was higher than that of the traditional GM(1,1). |
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| Keywords: | deformation monitoring prediction Grey Model(GM) Nonlinear Grey Bernoulli Model(NGBM) accuracy |
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