多元多方程地应力反演与工程应用研究

山东大学学报(工学版) ›› 2010, Vol. 40 ›› Issue (2): 66-70.

多元多方程地应力反演与工程应用研究

岳晓蕾¹,李术才²,陈启辉¹,葛雁平¹

1. 山东建筑大学土木工程学院, 山东济南 250101;
2. 山东大学土建与水利学院岩土与结构工程研究中心, 山东济南 250061

收稿日期:2009-11-26 出版日期:2010-04-16 发布日期:2009-11-26
作者简介:岳晓蕾(1971-),女,山东聊城人,讲师,硕士,主要研究方向为制图教学与岩土力学.E-mail:yuexiaolei@sina.com

Inversion of an initial geostress field by the method of multivariate analysis and the research of engineering application

YUE Xiao-^lei1, LI Shu-cai², CHEN Qi-hui¹, GE Yan-ping¹

1. School of Civil Engineering, Shandong Jianzhu University, Jinan 250101, China; 2. Geotechnical and Structural Engineering Research Center, School of Civil Engineering, Shandong University, Jinan 250061, China

Received:2009-11-26 Online:2010-04-16 Published:2009-11-26

摘要/Abstract

关键词: 地应力测量, 初始地应力, 反分析, 多元回归分析, 有限元

Abstract:

Based on engineering geological conditions and measured data of the geostress at a hydropower station, 3D geological models under each affecting factor were calculated by means of finite element computing tools and MATLAB. A multivariate regression model was created between the measured and calculated value of geostress at measurement points, and the optimal regression coefficient of the model was found. Consequently, the distributions of initial geostress of this area were obtained. This was the first attempt to take into account the independence and internal relations among each stress component. Thus, more reasonable distributions of initial geostress of this area were obtained. The result indicated that the 3D calculating geostress field was reasonable.

Key words: geostress survey, initial geo-stress field, inverse analysis, multivariate regression analysis, finite element

岳晓蕾1,李术才2,陈启辉1,葛雁平1. 多元多方程地应力反演与工程应用研究[J]. 山东大学学报(工学版), 2010, 40(2): 66-70.

YUE Xiao-lei1, LI Shu-cai2, CHEN Qi-hui1, GE Yan-ping1. Inversion of an initial geostress field by the method of multivariate analysis and the research of engineering application[J]. JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE), 2010, 40(2): 66-70.

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