城市勘测
城市勘測
성시감측
URBAN GEOTECHNICAL INVESTIGATION & SURVEYING
2013年
5期
119-121
,共3页
周吕%韩亚坤%陈冠宇%胡纪元
週呂%韓亞坤%陳冠宇%鬍紀元
주려%한아곤%진관우%호기원
沉降变形%动态GM(1,1)%变形预测
沉降變形%動態GM(1,1)%變形預測
침강변형%동태GM(1,1)%변형예측
settlement deformation%dynamic GM(1,1)%deformation prediction
介绍了灰色系统理论。针对传统GM(1,1)模型在建模时只从静态角度考虑未来时刻的状态这一缺陷,本文引入了可以实时加入系统最新信息的动态GM(1,1)预测模型。利用传统GM(1,1)模型与动态GM(1,1)模型对某桥梁监测点进行沉降变形分析与预测。通过对比分析实例计算结果表明,动态GM(1,1)模型可以有效地修正预测模型,在一定程度上提高了模型的预测精度,其预测效果优于传统GM(1,1)模型。
介紹瞭灰色繫統理論。針對傳統GM(1,1)模型在建模時隻從靜態角度攷慮未來時刻的狀態這一缺陷,本文引入瞭可以實時加入繫統最新信息的動態GM(1,1)預測模型。利用傳統GM(1,1)模型與動態GM(1,1)模型對某橋樑鑑測點進行沉降變形分析與預測。通過對比分析實例計算結果錶明,動態GM(1,1)模型可以有效地脩正預測模型,在一定程度上提高瞭模型的預測精度,其預測效果優于傳統GM(1,1)模型。
개소료회색계통이론。침대전통GM(1,1)모형재건모시지종정태각도고필미래시각적상태저일결함,본문인입료가이실시가입계통최신신식적동태GM(1,1)예측모형。이용전통GM(1,1)모형여동태GM(1,1)모형대모교량감측점진행침강변형분석여예측。통과대비분석실례계산결과표명,동태GM(1,1)모형가이유효지수정예측모형,재일정정도상제고료모형적예측정도,기예측효과우우전통GM(1,1)모형。
This paper introduces grey system theory .Aiming at the deficiency of traditional GM (1,1) model consid-ering future state only in a static view ,this paper introduces the dynamic GM (1,1) prediction model that can add latest information into system in real time .Using traditional GM (1,1) model and dynamic GM(1,1) model to analyze and predict a bridge monitoring point settlement deformation Through comparing and analyzing the calculation results of pro -ject example shows that the dynamic GM (1,1) can effectively revise prediction model and improve the prediction preci-sion of the model in a certain extent ,its prediction effect is superior to the traditional GM (1,1) model.