摘要
文中介绍了变形监测的两种建模方法:逐步回归分析方法以及时间序列分析方法。利用MATLAB软件对江西省九江市修水县境内的东津大坝边坡实测数据进行分析。逐步回归方法所建模型水平位移预测值与实测值的平均绝对误差为0.1626 mm,时间序列分析方法所建模型水平位移预测值与实测值平均绝对误差为0.0610 mm。经过分析认为,与逐步回归方法相比,时间序列分析方法所建模型预测值更接近实测值,预测精度较高。
In the paper,the author introduces two kinds of modeling method for deformation monitoring:the stepwise regression and the time series analysis.The author analyzes the slope measuring data of the Dongjin dam in Xiushui country in Jiujiang in Jiangxi using MATLAB.The average absolute error of the predicted horizontal displacement and measured values by the stepwise regression model is 0.1626mm,and by the time series model is 0.0610mm.After analysis,the predictions of the time series model are much closer to the measured values comparing with the stepwise regression model.
出处
《矿山测量》
2014年第2期72-74,7,共3页
Mine Surveying
基金
国家自然科学基金资助项目(41074022)
国家863计划资助项目(2012AA12A209)
