基于灰色模型的变形预测实例应用与对比分析  

Application and comparative analysis of deformation prediction based on Grey Model

作　　者：杨怀义[1] Yang Huaiyi(Shanxi Branch of China National Geological Exploration Center of Building Materials Industry,Taiyuan 030031,China)

机构地区：[1]中国建筑材料工业地质勘查中心山西总队,山西太原030031

出　　处：《山西建筑》2022年第6期178-180,183,共4页Shanxi Architecture

基　　金：张家口科技计划项目(2021028D);河北省高等学校青年拔尖人才计划(BJ2020010)。

摘　　要：以晋中市某楼房主体沉降监测数据为基础,选择9期数据进行分析,以7期数据建模对后2期数据进行预测验证,分别建立了原始GM(1,1)模型、均值GM(1,1)模型、以x^((1))(n)为初始值的GM(1,1)模型以及基于Newton-Cotes公式的GM(1,1)模型,通过程序实现模型后进行实例对比分析,认为基于Newton-Cotes公式的GM(1,1)模型预测精度更高且能达到工程应用要求。Based on the monitoring data of the main body settlement of a building in Jinzhong City, nine phases of data are selected for analysis, and the later two phases of data are predicted and verified by modeling with seven phases of data. The original GM(1,1) model, even GM(1,1) model, GM(1,1) model with x^((1))(n) as the initial value and GM(1,1) model based on Newton-Cotes formula are established respectively. After the model is realized by program, an example is compared and analyzed. It is considered that the GM(1,1) model based on Newton-Cotes formula has higher prediction accuracy and can meet the requirements of engineering application.

关 键 词：原始GM(1 1)模型 均值GM(1 1)模型 变形监测 预测 

分 类 号：TU433[建筑科学—岩土工程]