Inversion of Initial In Situ Stress Field by the Method of Multivariate Analysis and Engineering Application

Abstract:

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Based on engineering geological conditions and measured data of the in-situ stress at a hydropower station, 3D geological models under each affecting factor are calculated by means of finite element computing tools ABAQUS and MATLAB. Then, a multivariate regression model is created between the measured and calculated value of in-situ stress at measurement points, and the optimal regression coefficient of the model is found. Consequently, the distributions of initial in-situ stress of this area are obtained. It is the first time to take into account the independence and internal relations among each stress components. Thus, the more reasonable distributions of initial in-situ stress of this area are obtained. The results indicate that the 3D calculating in-situ stress field is reasonable.

Info:

Periodical:

Edited by:

Ran Chen

Pages:

1203-1206

DOI:

10.4028/www.scientific.net/AMM.44-47.1203

Citation:

X. L. Yue et al., "Inversion of Initial In Situ Stress Field by the Method of Multivariate Analysis and Engineering Application", Applied Mechanics and Materials, Vols. 44-47, pp. 1203-1206, 2011

Online since:

December 2010

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$35.00

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