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2000 Vol. 6, No. 2

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Article navigation > Journal of Geomechanics > 2000 > 6(2): 53-63

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YONG Xiao-cong, WANG Lian-jie. 2000. ERROR PROCESSING AND PRECISION ESTIMATION FOR ROCK STRESS MEASUREMENT. Journal of Geomechanics, 6(2): 53-63.

Citation:

YONG Xiao-cong, WANG Lian-jie. 2000. ERROR PROCESSING AND PRECISION ESTIMATION FOR ROCK STRESS MEASUREMENT. Journal of Geomechanics, 6(2): 53-63.

ERROR PROCESSING AND PRECISION ESTIMATION FOR ROCK STRESS MEASUREMENT

1. Beijing General Research Institute of Mining & Metallurgy, Binjing 100044, China;
2. Institute of Geomechanics, CAGS, Binjing 100081, China

Received Date: 10 December 1999

Abstract

Abstract

The least square method for rock stress measurement is described in this paper. The method of precision estimation is improved. Precision estimation is made more reliable using error calculation by the law of covariance propagation. By coordinate transformation of stress we have the differential relationship between the principal stresses and stress components to facilitate deviation calculation. Precision estimation of principal direction is more objective by using principal stress deflection error proposed in this paper.
- rock stress /
- measurement of rock stress /
- precision estimation /
- error analysis

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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

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