中国有色金属学报(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 23 No. 7 July 2013 |
（1. School of Geosicences and Info-Physics, Central South University, Changsha 410083, China;
2. Department of Land Surveying and Geo-informatics, Hong Kong Polytechnic University,
Hung Hom 999077, Kowloon, Hong Kong, China）
Abstract:In the application of regression analysis method to model dam deformation, the ill-condition problem occurred in coefficient matrix always prevents an accurate modeling mainly due to the multicollinearity of the variables. Independent component regression (ICR) was proposed to model the dam deformation and identify the physical origins of the deformation. Simulation experiment shows that ICR can successfully resolve the problem of ill-condition and produce a reliable deformation model. After that, the method is applied to model the deformation of the Wuqiangxi Dam in Hunan province, China. The result shows that ICR can not only accurately model the deformation of the dam, but also help to identify the physical factors that affect the deformation through the extracted independent components.
Key words: dam deformation analysis; independent component regression; principal component regression; ill-condition problem; interpreting of dam deformation
