城市勘测
城市勘測
성시감측
URBAN GEOTECHNICAL INVESTIGATION & SURVEYING
2014年
2期
154-156
,共3页
GM(1,1)模型%初始值%背景值%时间响应函数%沉降预报
GM(1,1)模型%初始值%揹景值%時間響應函數%沉降預報
GM(1,1)모형%초시치%배경치%시간향응함수%침강예보
GM(1,1) model%initial value%background value%time response sequence%settlement forecast
GM(1,1)模型是最常见的灰色系统模型,也是预测理论体系中的一个重要分支,被广泛应用于各种建筑物、构造物的变形监测预报中。本文针对传统GM(1,1)模型中存在的问题,对模型中的初始值、背景值及时间响应函数进行优化,得到一个优化的GM(1,1)模型,并将其应用到高速公路的沉降预报。实例证实,优化的GM(1,1)模型的模拟和预报精度比传统GM(1,1)模型有显著提高,体现了该模型的优良性与适用性。
GM(1,1)模型是最常見的灰色繫統模型,也是預測理論體繫中的一箇重要分支,被廣汎應用于各種建築物、構造物的變形鑑測預報中。本文針對傳統GM(1,1)模型中存在的問題,對模型中的初始值、揹景值及時間響應函數進行優化,得到一箇優化的GM(1,1)模型,併將其應用到高速公路的沉降預報。實例證實,優化的GM(1,1)模型的模擬和預報精度比傳統GM(1,1)模型有顯著提高,體現瞭該模型的優良性與適用性。
GM(1,1)모형시최상견적회색계통모형,야시예측이론체계중적일개중요분지,피엄범응용우각충건축물、구조물적변형감측예보중。본문침대전통GM(1,1)모형중존재적문제,대모형중적초시치、배경치급시간향응함수진행우화,득도일개우화적GM(1,1)모형,병장기응용도고속공로적침강예보。실예증실,우화적GM(1,1)모형적모의화예보정도비전통GM(1,1)모형유현저제고,체현료해모형적우량성여괄용성。
GM(1,1) mode is the most common content of grey system theory .And it is also an important branch of forecasting theories .The model is used to forecast the deformation of building widely .According to the problems of the traditional GM(1,1) model,the initial value,background value and time response sequence were optimized firstly .The optimized GM(1,1) model was applied to the settlement forecast of express highway .Through the example,the results show that the optimized GM (1,1) model has a very high fitting and prediction precision than the traditional model .