二阶有效度组合模型预测沉降变形研究  

Application of combination model based on second-order effective measure in deformation forecasting

作　　者：苏红柳 唐国强 孙国华 

机构地区：[1]广西矿冶与环境科学实验中心,广西桂林541004 [2]广西空间信息与测绘重点实验室,广西桂林541004

出　　处：《测绘科学》2014年第11期33-36,共4页Science of Surveying and Mapping

基　　金：国家自然科学基金项目(11061012);广西空间信息与测绘重点实验室基金(1103108-20);桂林市科技局基金项目(20110120-5)

摘　　要：一阶有效度组合预测模型只考虑了精度的均值,而事实上在进行预测时,还要考虑预测精度的方差对预测方法有效性的影响。针对简单的单目标有效度模型在沉降变形预测应用中的不足,文章提出采用基于均值和方差的多目标有效性的二阶有效度组合预测模型方法,对建筑物沉降变形进行预测研究,计算实例表明,该模型预测精度高,简单实用,能够有效应用于建筑物沉降变形的预测。Compared with one-order effective combination forecasting model, the second-order effec tive combination forecasting model could not only consider the mean of the sequence of precision, but also reflect the degree of dispersion by the standard deviation of the accuracy. This paper proposed a combina- tion of multi-objective forecasting model, and simplified the calculation of the model by approximate solu- tion to forecast the building deformation. Experimental result showed that the proposed model would have high precision of forecasting with its simple and useful utility, which could be widely used in the practical building settlement deformation forecasting.

关 键 词：二阶有效度 组合模型 变形预测 权系数 

分 类 号：TU196[建筑科学—建筑理论]